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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "AuthenticatedCipher.h"</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classAuthenticatedCipher.html#a0b1c0210ecb9d374d09b5b62a5140ba2"> 54</a></span> <a class="code" href="classAuthenticatedCipher.html#a0b1c0210ecb9d374d09b5b62a5140ba2">AuthenticatedCipher::AuthenticatedCipher</a>()</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="classAuthenticatedCipher.html#ae52a07be5b7265ea5898529ec21a79e4"> 61</a></span> <a class="code" href="classAuthenticatedCipher.html#ae52a07be5b7265ea5898529ec21a79e4">AuthenticatedCipher::~AuthenticatedCipher</a>()</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="ttc" id="classAuthenticatedCipher_html_ae52a07be5b7265ea5898529ec21a79e4"><div class="ttname"><a href="classAuthenticatedCipher.html#ae52a07be5b7265ea5898529ec21a79e4">AuthenticatedCipher::~AuthenticatedCipher</a></div><div class="ttdeci">virtual ~AuthenticatedCipher()</div><div class="ttdoc">Destroys this authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8cpp_source.html#l00061">AuthenticatedCipher.cpp:61</a></div></div>
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<div class="ttc" id="classAuthenticatedCipher_html_a0b1c0210ecb9d374d09b5b62a5140ba2"><div class="ttname"><a href="classAuthenticatedCipher.html#a0b1c0210ecb9d374d09b5b62a5140ba2">AuthenticatedCipher::AuthenticatedCipher</a></div><div class="ttdeci">AuthenticatedCipher()</div><div class="ttdoc">Constructs a new authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8cpp_source.html#l00054">AuthenticatedCipher.cpp:54</a></div></div>
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<div class="title">AuthenticatedCipher.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
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||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_AUTHENTICATEDCIPHER_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_AUTHENTICATEDCIPHER_h</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "Cipher.h"</span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classAuthenticatedCipher.html"> 28</a></span> <span class="keyword">class </span><a class="code" href="classAuthenticatedCipher.html">AuthenticatedCipher</a> : <span class="keyword">public</span> <a class="code" href="classCipher.html">Cipher</a></div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="code" href="classAuthenticatedCipher.html#a0b1c0210ecb9d374d09b5b62a5140ba2">AuthenticatedCipher</a>();</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">virtual</span> <a class="code" href="classAuthenticatedCipher.html#ae52a07be5b7265ea5898529ec21a79e4">~AuthenticatedCipher</a>();</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code" href="classAuthenticatedCipher.html#a50c9de15b1ac1f3079dcfef626238759">tagSize</a>() <span class="keyword">const</span> = 0;</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classAuthenticatedCipher.html#abdb081bdf0d59c138cbcffd23c044b10">addAuthData</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len) = 0;</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classAuthenticatedCipher.html#a73fa4306053ed457e5c533b3127391c9">computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len) = 0;</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classAuthenticatedCipher.html#a4bb33d194e2c7d30c4e5a713e59786ff">checkTag</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len) = 0;</div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> };</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classCipher_html"><div class="ttname"><a href="classCipher.html">Cipher</a></div><div class="ttdoc">Abstract base class for stream ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="Cipher_8h_source.html#l00029">Cipher.h:29</a></div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html_a4bb33d194e2c7d30c4e5a713e59786ff"><div class="ttname"><a href="classAuthenticatedCipher.html#a4bb33d194e2c7d30c4e5a713e59786ff">AuthenticatedCipher::checkTag</a></div><div class="ttdeci">virtual bool checkTag(const void *tag, size_t len)=0</div><div class="ttdoc">Finalizes the decryption process and checks the authentication tag. </div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html_ae52a07be5b7265ea5898529ec21a79e4"><div class="ttname"><a href="classAuthenticatedCipher.html#ae52a07be5b7265ea5898529ec21a79e4">AuthenticatedCipher::~AuthenticatedCipher</a></div><div class="ttdeci">virtual ~AuthenticatedCipher()</div><div class="ttdoc">Destroys this authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8cpp_source.html#l00061">AuthenticatedCipher.cpp:61</a></div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html"><div class="ttname"><a href="classAuthenticatedCipher.html">AuthenticatedCipher</a></div><div class="ttdoc">Abstract base class for authenticated ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8h_source.html#l00028">AuthenticatedCipher.h:28</a></div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html_a50c9de15b1ac1f3079dcfef626238759"><div class="ttname"><a href="classAuthenticatedCipher.html#a50c9de15b1ac1f3079dcfef626238759">AuthenticatedCipher::tagSize</a></div><div class="ttdeci">virtual size_t tagSize() const =0</div><div class="ttdoc">Returns the size of the authentication tag. </div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html_a73fa4306053ed457e5c533b3127391c9"><div class="ttname"><a href="classAuthenticatedCipher.html#a73fa4306053ed457e5c533b3127391c9">AuthenticatedCipher::computeTag</a></div><div class="ttdeci">virtual void computeTag(void *tag, size_t len)=0</div><div class="ttdoc">Finalizes the encryption process and computes the authentication tag. </div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html_abdb081bdf0d59c138cbcffd23c044b10"><div class="ttname"><a href="classAuthenticatedCipher.html#abdb081bdf0d59c138cbcffd23c044b10">AuthenticatedCipher::addAuthData</a></div><div class="ttdeci">virtual void addAuthData(const void *data, size_t len)=0</div><div class="ttdoc">Adds extra data that will be authenticated but not encrypted. </div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html_a0b1c0210ecb9d374d09b5b62a5140ba2"><div class="ttname"><a href="classAuthenticatedCipher.html#a0b1c0210ecb9d374d09b5b62a5140ba2">AuthenticatedCipher::AuthenticatedCipher</a></div><div class="ttdeci">AuthenticatedCipher()</div><div class="ttdoc">Constructs a new authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8cpp_source.html#l00054">AuthenticatedCipher.cpp:54</a></div></div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_BIGNUMBERUTIL_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_BIGNUMBERUTIL_h</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <inttypes.h></span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// Define exactly one of these to 1 to set the size of the basic limb type.</span></div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// 16-bit limbs seem to give the best performance on 8-bit AVR micros.</span></div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#define BIGNUMBER_LIMB_8BIT 0</span></div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span><span class="preprocessor">#define BIGNUMBER_LIMB_16BIT 1</span></div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span><span class="preprocessor">#define BIGNUMBER_LIMB_32BIT 0</span></div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Define the limb types to use on this platform.</span></div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#if BIGNUMBER_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"></span><span class="keyword">typedef</span> uint8_t limb_t;</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">typedef</span> int8_t slimb_t;</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">typedef</span> uint16_t dlimb_t;</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#elif BIGNUMBER_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="keyword">typedef</span> uint16_t limb_t;</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">typedef</span> int16_t slimb_t;</div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">typedef</span> uint32_t dlimb_t;</div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#elif BIGNUMBER_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span><span class="keyword">typedef</span> uint32_t limb_t;</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">typedef</span> int32_t slimb_t;</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">typedef</span> uint64_t dlimb_t;</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span><span class="preprocessor">#error "limb_t must be 8, 16, or 32 bits in size"</span></div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#endif</span></div>
|
||||
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|
||||
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@ -196,7 +196,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -157,7 +157,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -146,7 +146,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -202,7 +202,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -160,7 +160,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -208,7 +208,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -172,7 +172,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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270
ChaChaPoly_8cpp_source.html
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||||
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|
||||
<li class="navelem"><a class="el" href="dir_bc0718b08fb2015b8e59c47b2805f60c.html">libraries</a></li><li class="navelem"><a class="el" href="dir_e2ce51835550ba18edf07a8311722290.html">Crypto</a></li> </ul>
|
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|
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</div><!-- top -->
|
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<div class="header">
|
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<div class="headertitle">
|
||||
<div class="title">ChaChaPoly.cpp</div> </div>
|
||||
</div><!--header-->
|
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<div class="contents">
|
||||
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "ChaChaPoly.h"</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "Crypto.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <string.h></span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a1b6779227eff97b0336bbc849c7e2e1c"> 45</a></span> <a class="code" href="classChaChaPoly.html#a1b6779227eff97b0336bbc849c7e2e1c">ChaChaPoly::ChaChaPoly</a>()</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  state.authSize = 0;</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  state.dataSize = 0;</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  state.dataStarted = <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  state.ivSize = 8;</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a7c37e683ee0d2f1181007d8bded4f80c"> 56</a></span> <a class="code" href="classChaChaPoly.html#a7c37e683ee0d2f1181007d8bded4f80c">ChaChaPoly::~ChaChaPoly</a>()</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> {</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a666760e68cb53f28ba0a8dc09039c0fb"> 61</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classChaChaPoly.html#a666760e68cb53f28ba0a8dc09039c0fb">ChaChaPoly::keySize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// Default key size is 256-bit, but any key size is allowed.</span></div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> 32;</div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> }</div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keywordtype">size_t</span> <a class="code" href="classChaChaPoly.html#ac3ebfaaaffe9d607905681949e75140d">ChaChaPoly::ivSize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Return 8 but we also support 12-byte nonces in setIV().</span></div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> 8;</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }</div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a086c2aea395ab31136ebe7805591fd0a"> 73</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classChaChaPoly.html#a086c2aea395ab31136ebe7805591fd0a">ChaChaPoly::tagSize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Any tag size between 1 and 16 is supported.</span></div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">return</span> 16;</div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#ae300892647dd92cbce711b834aa20c09"> 79</a></span> <span class="keywordtype">bool</span> <a class="code" href="classChaChaPoly.html#ae300892647dd92cbce711b834aa20c09">ChaChaPoly::setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> {</div>
|
||||
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> chacha.<a class="code" href="classChaCha.html#a6b2bdffbd3705e388bb458edb2f40c90">setKey</a>(key, len);</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> }</div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
|
||||
<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a308056b17b3a4a496e9612ae19a2fd6f"> 84</a></span> <span class="keywordtype">bool</span> <a class="code" href="classChaChaPoly.html#a308056b17b3a4a496e9612ae19a2fd6f">ChaChaPoly::setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// ChaCha::setIV() supports both 64-bit and 96-bit nonces.</span></div>
|
||||
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (!chacha.<a class="code" href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259">setIV</a>(iv, len))</div>
|
||||
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// Generate the key and nonce to use for Poly1305.</span></div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  uint32_t data[16];</div>
|
||||
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  chacha.keystreamBlock(data);</div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  poly1305.<a class="code" href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8">reset</a>(data);</div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  memcpy(state.nonce, data + 4, 16);</div>
|
||||
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  clean(data);</div>
|
||||
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// Reset the size counters for the auth data and payload.</span></div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  state.authSize = 0;</div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  state.dataSize = 0;</div>
|
||||
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  state.dataStarted = <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  state.ivSize = len;</div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
|
||||
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a7df4acd04f459ecf9d3b24317bde94a3"> 104</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a7df4acd04f459ecf9d3b24317bde94a3">ChaChaPoly::encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> {</div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (!state.dataStarted) {</div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  poly1305.<a class="code" href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">pad</a>();</div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  state.dataStarted = <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
|
||||
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  chacha.<a class="code" href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">encrypt</a>(output, input, len);</div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  poly1305.<a class="code" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">update</a>(output, len);</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  state.dataSize += len;</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
|
||||
<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a42f556f202b1166486434ee15b6d95a0"> 115</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a42f556f202b1166486434ee15b6d95a0">ChaChaPoly::decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> {</div>
|
||||
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (!state.dataStarted) {</div>
|
||||
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  poly1305.<a class="code" href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">pad</a>();</div>
|
||||
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  state.dataStarted = <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div>
|
||||
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  poly1305.<a class="code" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">update</a>(input, len);</div>
|
||||
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  chacha.<a class="code" href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">encrypt</a>(output, input, len); <span class="comment">// encrypt() is the same as decrypt()</span></div>
|
||||
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  state.dataSize += len;</div>
|
||||
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> }</div>
|
||||
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
|
||||
<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a4aa3514d1fb6272da977a7467ae6734b"> 126</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a4aa3514d1fb6272da977a7467ae6734b">ChaChaPoly::addAuthData</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> {</div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (!state.dataStarted) {</div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  poly1305.<a class="code" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">update</a>(data, len);</div>
|
||||
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  state.authSize += len;</div>
|
||||
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  }</div>
|
||||
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div>
|
||||
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
|
||||
<div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a92d850ad7027829e4072c43bd5028f95"> 134</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a92d850ad7027829e4072c43bd5028f95">ChaChaPoly::computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> {</div>
|
||||
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  uint64_t sizes[2];</div>
|
||||
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
|
||||
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// Pad the final Poly1305 block and then hash the sizes.</span></div>
|
||||
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  poly1305.<a class="code" href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">pad</a>();</div>
|
||||
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  sizes[0] = htole64(state.authSize);</div>
|
||||
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  sizes[1] = htole64(state.dataSize);</div>
|
||||
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  poly1305.<a class="code" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">update</a>(sizes, <span class="keyword">sizeof</span>(sizes));</div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
|
||||
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// Compute the tag and copy it to the return buffer.</span></div>
|
||||
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  poly1305.<a class="code" href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c">finalize</a>(state.nonce, tag, len);</div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  clean(sizes);</div>
|
||||
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> }</div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#aeffb3e0df0b4da03f72f30251243d953"> 149</a></span> <span class="keywordtype">bool</span> <a class="code" href="classChaChaPoly.html#aeffb3e0df0b4da03f72f30251243d953">ChaChaPoly::checkTag</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> {</div>
|
||||
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// Can never match if the expected tag length is too long.</span></div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// Compute the tag and check it.</span></div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  uint8_t temp[16];</div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="classChaChaPoly.html#a92d850ad7027829e4072c43bd5028f95">computeTag</a>(temp, len);</div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">bool</span> equal = secure_compare(temp, tag, len);</div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  clean(temp);</div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span> equal;</div>
|
||||
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> }</div>
|
||||
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
|
||||
<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="classChaChaPoly.html#a2d7fc3fd05a0b6c7c9c21fff6e939c9a"> 163</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a2d7fc3fd05a0b6c7c9c21fff6e939c9a">ChaChaPoly::clear</a>()</div>
|
||||
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div>
|
||||
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  chacha.<a class="code" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">clear</a>();</div>
|
||||
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  poly1305.<a class="code" href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd">clear</a>();</div>
|
||||
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  state.ivSize = 8;</div>
|
||||
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div>
|
||||
<div class="ttc" id="classPoly1305_html_aab3fa6c5f6fa7d9ca6c82bead38f499c"><div class="ttname"><a href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c">Poly1305::finalize</a></div><div class="ttdeci">void finalize(const void *nonce, void *token, size_t len)</div><div class="ttdoc">Finalizes the authentication process and returns the token. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00180">Poly1305.cpp:180</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_a544839403d0a19300c239708bc1e6ed8"><div class="ttname"><a href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8">Poly1305::reset</a></div><div class="ttdeci">void reset(const void *key)</div><div class="ttdoc">Resets the Poly1305 message authenticator for a new session. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00111">Poly1305.cpp:111</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a6b2bdffbd3705e388bb458edb2f40c90"><div class="ttname"><a href="classChaCha.html#a6b2bdffbd3705e388bb458edb2f40c90">ChaCha::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00087">ChaCha.cpp:87</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a7c37e683ee0d2f1181007d8bded4f80c"><div class="ttname"><a href="classChaChaPoly.html#a7c37e683ee0d2f1181007d8bded4f80c">ChaChaPoly::~ChaChaPoly</a></div><div class="ttdeci">virtual ~ChaChaPoly()</div><div class="ttdoc">Destroys this ChaChaPoly authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00056">ChaChaPoly.cpp:56</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a086c2aea395ab31136ebe7805591fd0a"><div class="ttname"><a href="classChaChaPoly.html#a086c2aea395ab31136ebe7805591fd0a">ChaChaPoly::tagSize</a></div><div class="ttdeci">size_t tagSize() const </div><div class="ttdoc">Returns the size of the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00073">ChaChaPoly.cpp:73</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a734f3246b1e6810c63637b8cda26b259"><div class="ttname"><a href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259">ChaCha::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00111">ChaCha.cpp:111</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a308056b17b3a4a496e9612ae19a2fd6f"><div class="ttname"><a href="classChaChaPoly.html#a308056b17b3a4a496e9612ae19a2fd6f">ChaChaPoly::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00084">ChaChaPoly.cpp:84</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a666760e68cb53f28ba0a8dc09039c0fb"><div class="ttname"><a href="classChaChaPoly.html#a666760e68cb53f28ba0a8dc09039c0fb">ChaChaPoly::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Default size of the key for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00061">ChaChaPoly.cpp:61</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a92d850ad7027829e4072c43bd5028f95"><div class="ttname"><a href="classChaChaPoly.html#a92d850ad7027829e4072c43bd5028f95">ChaChaPoly::computeTag</a></div><div class="ttdeci">void computeTag(void *tag, size_t len)</div><div class="ttdoc">Finalizes the encryption process and computes the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00134">ChaChaPoly.cpp:134</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a1b6779227eff97b0336bbc849c7e2e1c"><div class="ttname"><a href="classChaChaPoly.html#a1b6779227eff97b0336bbc849c7e2e1c">ChaChaPoly::ChaChaPoly</a></div><div class="ttdeci">ChaChaPoly()</div><div class="ttdoc">Constructs a new ChaChaPoly authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00045">ChaChaPoly.cpp:45</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_acd4fff140b8871c233d9a31abf753ed8"><div class="ttname"><a href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">ChaCha::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00158">ChaCha.cpp:158</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a4aa3514d1fb6272da977a7467ae6734b"><div class="ttname"><a href="classChaChaPoly.html#a4aa3514d1fb6272da977a7467ae6734b">ChaChaPoly::addAuthData</a></div><div class="ttdeci">void addAuthData(const void *data, size_t len)</div><div class="ttdoc">Adds extra data that will be authenticated but not encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00126">ChaChaPoly.cpp:126</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a7df4acd04f459ecf9d3b24317bde94a3"><div class="ttname"><a href="classChaChaPoly.html#a7df4acd04f459ecf9d3b24317bde94a3">ChaChaPoly::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00104">ChaChaPoly.cpp:104</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_ac3ebfaaaffe9d607905681949e75140d"><div class="ttname"><a href="classChaChaPoly.html#ac3ebfaaaffe9d607905681949e75140d">ChaChaPoly::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Size of the initialization vector for this cipher, in bytes. </div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ae4e0b647ff93f501bd01459b1616557c"><div class="ttname"><a href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">Poly1305::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the message authenticator with more data. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00143">Poly1305.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af533905f679066c41f4d6cd76bddb4cb"><div class="ttname"><a href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00218">ChaCha.cpp:218</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a2d7fc3fd05a0b6c7c9c21fff6e939c9a"><div class="ttname"><a href="classChaChaPoly.html#a2d7fc3fd05a0b6c7c9c21fff6e939c9a">ChaChaPoly::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00163">ChaChaPoly.cpp:163</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a42f556f202b1166486434ee15b6d95a0"><div class="ttname"><a href="classChaChaPoly.html#a42f556f202b1166486434ee15b6d95a0">ChaChaPoly::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00115">ChaChaPoly.cpp:115</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_aaea2f40c1f22dcc2f8f690c793fb4388"><div class="ttname"><a href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">Poly1305::pad</a></div><div class="ttdeci">void pad()</div><div class="ttdoc">Pads the input stream with zero bytes to a multiple of 16. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00251">Poly1305.cpp:251</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ae3f3392b9a2bd0f3472e7e50dd7e21dd"><div class="ttname"><a href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd">Poly1305::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the authenticator's state, removing all sensitive data. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00265">Poly1305.cpp:265</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_ae300892647dd92cbce711b834aa20c09"><div class="ttname"><a href="classChaChaPoly.html#ae300892647dd92cbce711b834aa20c09">ChaChaPoly::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00079">ChaChaPoly.cpp:79</a></div></div>
|
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<div class="ttc" id="classChaChaPoly_html_aeffb3e0df0b4da03f72f30251243d953"><div class="ttname"><a href="classChaChaPoly.html#aeffb3e0df0b4da03f72f30251243d953">ChaChaPoly::checkTag</a></div><div class="ttdeci">bool checkTag(const void *tag, size_t len)</div><div class="ttdoc">Finalizes the decryption process and checks the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00149">ChaChaPoly.cpp:149</a></div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
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||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_CHACHAPOLY_H</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_CHACHAPOLY_H</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "AuthenticatedCipher.h"</span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "ChaCha.h"</span></div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "Poly1305.h"</span></div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="classChaChaPoly.html"> 30</a></span> <span class="keyword">class </span><a class="code" href="classChaChaPoly.html">ChaChaPoly</a> : <span class="keyword">public</span> <a class="code" href="classAuthenticatedCipher.html">AuthenticatedCipher</a></div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="classChaChaPoly.html#a1b6779227eff97b0336bbc849c7e2e1c">ChaChaPoly</a>();</div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">virtual</span> <a class="code" href="classChaChaPoly.html#a7c37e683ee0d2f1181007d8bded4f80c">~ChaChaPoly</a>();</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaChaPoly.html#a666760e68cb53f28ba0a8dc09039c0fb">keySize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaChaPoly.html#ac3ebfaaaffe9d607905681949e75140d">ivSize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaChaPoly.html#a086c2aea395ab31136ebe7805591fd0a">tagSize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaChaPoly.html#ae300892647dd92cbce711b834aa20c09">setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaChaPoly.html#a308056b17b3a4a496e9612ae19a2fd6f">setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a7df4acd04f459ecf9d3b24317bde94a3">encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a42f556f202b1166486434ee15b6d95a0">decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a4aa3514d1fb6272da977a7467ae6734b">addAuthData</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a92d850ad7027829e4072c43bd5028f95">computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaChaPoly.html#aeffb3e0df0b4da03f72f30251243d953">checkTag</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">void</span> <a class="code" href="classChaChaPoly.html#a2d7fc3fd05a0b6c7c9c21fff6e939c9a">clear</a>();</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="classChaCha.html">ChaCha</a> chacha;</div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="classPoly1305.html">Poly1305</a> poly1305;</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">struct </span>{</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  uint8_t nonce[16];</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  uint64_t authSize;</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  uint64_t dataSize;</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">bool</span> dataStarted;</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  uint8_t <a class="code" href="classChaChaPoly.html#ac3ebfaaaffe9d607905681949e75140d">ivSize</a>;</div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  } state;</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> };</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classPoly1305_html"><div class="ttname"><a href="classPoly1305.html">Poly1305</a></div><div class="ttdoc">Poly1305 message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8h_source.html#l00029">Poly1305.h:29</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html"><div class="ttname"><a href="classChaChaPoly.html">ChaChaPoly</a></div><div class="ttdoc">Authenticated cipher based on ChaCha and Poly1305. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8h_source.html#l00030">ChaChaPoly.h:30</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html"><div class="ttname"><a href="classChaCha.html">ChaCha</a></div><div class="ttdoc">ChaCha stream cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00030">ChaCha.h:30</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a7c37e683ee0d2f1181007d8bded4f80c"><div class="ttname"><a href="classChaChaPoly.html#a7c37e683ee0d2f1181007d8bded4f80c">ChaChaPoly::~ChaChaPoly</a></div><div class="ttdeci">virtual ~ChaChaPoly()</div><div class="ttdoc">Destroys this ChaChaPoly authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00056">ChaChaPoly.cpp:56</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a086c2aea395ab31136ebe7805591fd0a"><div class="ttname"><a href="classChaChaPoly.html#a086c2aea395ab31136ebe7805591fd0a">ChaChaPoly::tagSize</a></div><div class="ttdeci">size_t tagSize() const </div><div class="ttdoc">Returns the size of the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00073">ChaChaPoly.cpp:73</a></div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html"><div class="ttname"><a href="classAuthenticatedCipher.html">AuthenticatedCipher</a></div><div class="ttdoc">Abstract base class for authenticated ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8h_source.html#l00028">AuthenticatedCipher.h:28</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a308056b17b3a4a496e9612ae19a2fd6f"><div class="ttname"><a href="classChaChaPoly.html#a308056b17b3a4a496e9612ae19a2fd6f">ChaChaPoly::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00084">ChaChaPoly.cpp:84</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a666760e68cb53f28ba0a8dc09039c0fb"><div class="ttname"><a href="classChaChaPoly.html#a666760e68cb53f28ba0a8dc09039c0fb">ChaChaPoly::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Default size of the key for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00061">ChaChaPoly.cpp:61</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a92d850ad7027829e4072c43bd5028f95"><div class="ttname"><a href="classChaChaPoly.html#a92d850ad7027829e4072c43bd5028f95">ChaChaPoly::computeTag</a></div><div class="ttdeci">void computeTag(void *tag, size_t len)</div><div class="ttdoc">Finalizes the encryption process and computes the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00134">ChaChaPoly.cpp:134</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a1b6779227eff97b0336bbc849c7e2e1c"><div class="ttname"><a href="classChaChaPoly.html#a1b6779227eff97b0336bbc849c7e2e1c">ChaChaPoly::ChaChaPoly</a></div><div class="ttdeci">ChaChaPoly()</div><div class="ttdoc">Constructs a new ChaChaPoly authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00045">ChaChaPoly.cpp:45</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a4aa3514d1fb6272da977a7467ae6734b"><div class="ttname"><a href="classChaChaPoly.html#a4aa3514d1fb6272da977a7467ae6734b">ChaChaPoly::addAuthData</a></div><div class="ttdeci">void addAuthData(const void *data, size_t len)</div><div class="ttdoc">Adds extra data that will be authenticated but not encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00126">ChaChaPoly.cpp:126</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a7df4acd04f459ecf9d3b24317bde94a3"><div class="ttname"><a href="classChaChaPoly.html#a7df4acd04f459ecf9d3b24317bde94a3">ChaChaPoly::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00104">ChaChaPoly.cpp:104</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_ac3ebfaaaffe9d607905681949e75140d"><div class="ttname"><a href="classChaChaPoly.html#ac3ebfaaaffe9d607905681949e75140d">ChaChaPoly::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Size of the initialization vector for this cipher, in bytes. </div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a2d7fc3fd05a0b6c7c9c21fff6e939c9a"><div class="ttname"><a href="classChaChaPoly.html#a2d7fc3fd05a0b6c7c9c21fff6e939c9a">ChaChaPoly::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00163">ChaChaPoly.cpp:163</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_a42f556f202b1166486434ee15b6d95a0"><div class="ttname"><a href="classChaChaPoly.html#a42f556f202b1166486434ee15b6d95a0">ChaChaPoly::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00115">ChaChaPoly.cpp:115</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_ae300892647dd92cbce711b834aa20c09"><div class="ttname"><a href="classChaChaPoly.html#ae300892647dd92cbce711b834aa20c09">ChaChaPoly::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00079">ChaChaPoly.cpp:79</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html_aeffb3e0df0b4da03f72f30251243d953"><div class="ttname"><a href="classChaChaPoly.html#aeffb3e0df0b4da03f72f30251243d953">ChaChaPoly::checkTag</a></div><div class="ttdeci">bool checkTag(const void *tag, size_t len)</div><div class="ttdoc">Finalizes the decryption process and checks the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8cpp_source.html#l00149">ChaChaPoly.cpp:149</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
|
||||
<!-- start footer part -->
|
||||
<hr class="footer"/><address class="footer"><small>
|
||||
Generated on Wed Apr 1 2015 16:36:09 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/>
|
||||
</a> 1.8.6
|
||||
</small></address>
|
||||
</body>
|
||||
</html>
|
||||
@ -167,7 +167,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259"> 111</a></span> <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259">ChaCha::setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> {</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// From draft-nir-cfrg-chacha20-poly1305-04.txt, we can use either</span></div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// From draft-nir-cfrg-chacha20-poly1305-10.txt, we can use either</span></div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// 64-bit or 96-bit nonces. The 96-bit nonce consists of the high</span></div>
|
||||
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// word of the counter prepended to a regular 64-bit nonce for ChaCha.</span></div>
|
||||
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (len == 8) {</div>
|
||||
@ -235,58 +235,69 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="code" href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">encrypt</a>(output, input, len);</div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> }</div>
|
||||
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
|
||||
<div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb"> 195</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a>()</div>
|
||||
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> {</div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  clean(block);</div>
|
||||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  clean(stream);</div>
|
||||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  posn = 64;</div>
|
||||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div>
|
||||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
|
||||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment">// Perform a ChaCha quarter round operation.</span></div>
|
||||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor">#define quarterRound(a, b, c, d) \</span></div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor"> do { \</span></div>
|
||||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="preprocessor"> uint32_t _b = (b); \</span></div>
|
||||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"> uint32_t _a = (a) + _b; \</span></div>
|
||||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"> uint32_t _d = leftRotate((d) ^ _a, 16); \</span></div>
|
||||
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor"> uint32_t _c = (c) + _d; \</span></div>
|
||||
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="preprocessor"> _b = leftRotate12(_b ^ _c); \</span></div>
|
||||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="preprocessor"> _a += _b; \</span></div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor"> (d) = _d = leftRotate(_d ^ _a, 8); \</span></div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="preprocessor"> _c += _d; \</span></div>
|
||||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor"> (a) = _a; \</span></div>
|
||||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="preprocessor"> (b) = leftRotate7(_b ^ _c); \</span></div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="preprocessor"> (c) = _c; \</span></div>
|
||||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor"> } while (0)</span></div>
|
||||
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00230"></a><span class="lineno"><a class="line" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038"> 230</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a>(uint32_t *output, <span class="keyword">const</span> uint32_t *input, uint8_t rounds)</div>
|
||||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> {</div>
|
||||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  uint8_t posn;</div>
|
||||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
|
||||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// Copy the input buffer to the output prior to the first round</span></div>
|
||||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="comment">// and convert from little-endian to host byte order.</span></div>
|
||||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
|
||||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  output[posn] = le32toh(input[posn]);</div>
|
||||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
|
||||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="comment">// Perform the ChaCha rounds in sets of two.</span></div>
|
||||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">for</span> (; rounds >= 2; rounds -= 2) {</div>
|
||||
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">// Column round.</span></div>
|
||||
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  quarterRound(output[0], output[4], output[8], output[12]);</div>
|
||||
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  quarterRound(output[1], output[5], output[9], output[13]);</div>
|
||||
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  quarterRound(output[2], output[6], output[10], output[14]);</div>
|
||||
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  quarterRound(output[3], output[7], output[11], output[15]);</div>
|
||||
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div>
|
||||
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// Diagonal round.</span></div>
|
||||
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  quarterRound(output[0], output[5], output[10], output[15]);</div>
|
||||
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  quarterRound(output[1], output[6], output[11], output[12]);</div>
|
||||
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  quarterRound(output[2], output[7], output[8], output[13]);</div>
|
||||
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  quarterRound(output[3], output[4], output[9], output[14]);</div>
|
||||
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div>
|
||||
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
|
||||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// Add the original input to the final output, convert back to</span></div>
|
||||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">// little-endian, and return the result.</span></div>
|
||||
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
|
||||
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  output[posn] = htole32(output[posn] + le32toh(input[posn]));</div>
|
||||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> }</div>
|
||||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="keywordtype">void</span> ChaCha::keystreamBlock(uint32_t *output)</div>
|
||||
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> {</div>
|
||||
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// Generate the hash output directly into the caller-supplied buffer.</span></div>
|
||||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">hashCore</a>(output, (<span class="keyword">const</span> uint32_t *)block, rounds);</div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  posn = 64;</div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
|
||||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// Increment the lowest counter byte. We are assuming that the caller</span></div>
|
||||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">// is ChaChaPoly::setKey() and that the previous counter value was zero.</span></div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  block[48] = 1;</div>
|
||||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> }</div>
|
||||
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> </div>
|
||||
<div class="line"><a name="l00218"></a><span class="lineno"><a class="line" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb"> 218</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a>()</div>
|
||||
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> {</div>
|
||||
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  clean(block);</div>
|
||||
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  clean(stream);</div>
|
||||
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  posn = 64;</div>
|
||||
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div>
|
||||
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
|
||||
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// Perform a ChaCha quarter round operation.</span></div>
|
||||
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="preprocessor">#define quarterRound(a, b, c, d) \</span></div>
|
||||
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="preprocessor"> do { \</span></div>
|
||||
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="preprocessor"> uint32_t _b = (b); \</span></div>
|
||||
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="preprocessor"> uint32_t _a = (a) + _b; \</span></div>
|
||||
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="preprocessor"> uint32_t _d = leftRotate((d) ^ _a, 16); \</span></div>
|
||||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor"> uint32_t _c = (c) + _d; \</span></div>
|
||||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor"> _b = leftRotate12(_b ^ _c); \</span></div>
|
||||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor"> _a += _b; \</span></div>
|
||||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor"> (d) = _d = leftRotate(_d ^ _a, 8); \</span></div>
|
||||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor"> _c += _d; \</span></div>
|
||||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="preprocessor"> (a) = _a; \</span></div>
|
||||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor"> (b) = leftRotate7(_b ^ _c); \</span></div>
|
||||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="preprocessor"> (c) = _c; \</span></div>
|
||||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor"> } while (0)</span></div>
|
||||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038"> 253</a></span> <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a>(uint32_t *output, <span class="keyword">const</span> uint32_t *input, uint8_t rounds)</div>
|
||||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> {</div>
|
||||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  uint8_t posn;</div>
|
||||
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div>
|
||||
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// Copy the input buffer to the output prior to the first round</span></div>
|
||||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="comment">// and convert from little-endian to host byte order.</span></div>
|
||||
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
|
||||
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  output[posn] = le32toh(input[posn]);</div>
|
||||
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div>
|
||||
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">// Perform the ChaCha rounds in sets of two.</span></div>
|
||||
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">for</span> (; rounds >= 2; rounds -= 2) {</div>
|
||||
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="comment">// Column round.</span></div>
|
||||
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  quarterRound(output[0], output[4], output[8], output[12]);</div>
|
||||
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  quarterRound(output[1], output[5], output[9], output[13]);</div>
|
||||
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  quarterRound(output[2], output[6], output[10], output[14]);</div>
|
||||
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  quarterRound(output[3], output[7], output[11], output[15]);</div>
|
||||
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
|
||||
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// Diagonal round.</span></div>
|
||||
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  quarterRound(output[0], output[5], output[10], output[15]);</div>
|
||||
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  quarterRound(output[1], output[6], output[11], output[12]);</div>
|
||||
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  quarterRound(output[2], output[7], output[8], output[13]);</div>
|
||||
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  quarterRound(output[3], output[4], output[9], output[14]);</div>
|
||||
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  }</div>
|
||||
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
|
||||
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">// Add the original input to the final output, convert back to</span></div>
|
||||
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// little-endian, and return the result.</span></div>
|
||||
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
|
||||
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  output[posn] = htole32(output[posn] + le32toh(input[posn]));</div>
|
||||
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> }</div>
|
||||
<div class="ttc" id="classChaCha_html_afaa3df343a7d07976bd7e03a0c1bf43c"><div class="ttname"><a href="classChaCha.html#afaa3df343a7d07976bd7e03a0c1bf43c">ChaCha::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Size of the initialization vector for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00065">ChaCha.cpp:65</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a6b2bdffbd3705e388bb458edb2f40c90"><div class="ttname"><a href="classChaCha.html#a6b2bdffbd3705e388bb458edb2f40c90">ChaCha::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00087">ChaCha.cpp:87</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af286083291fab2bd36dc7ad1f54d5cd7"><div class="ttname"><a href="classChaCha.html#af286083291fab2bd36dc7ad1f54d5cd7">ChaCha::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Default size of the key for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00059">ChaCha.cpp:59</a></div></div>
|
||||
@ -295,12 +306,12 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="ttc" id="classChaCha_html_a5831811b705d3c80e97f0242597f0c7e"><div class="ttname"><a href="classChaCha.html#a5831811b705d3c80e97f0242597f0c7e">ChaCha::ChaCha</a></div><div class="ttdeci">ChaCha(uint8_t numRounds=20)</div><div class="ttdoc">Constructs a new ChaCha stream cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00047">ChaCha.cpp:47</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a1f54b2b51b59428010f81a6c4dc4e42c"><div class="ttname"><a href="classChaCha.html#a1f54b2b51b59428010f81a6c4dc4e42c">ChaCha::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00190">ChaCha.cpp:190</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_acd4fff140b8871c233d9a31abf753ed8"><div class="ttname"><a href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">ChaCha::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00158">ChaCha.cpp:158</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af533905f679066c41f4d6cd76bddb4cb"><div class="ttname"><a href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00195">ChaCha.cpp:195</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a41ac3262e52ff49dcd916d0b3b2e2038"><div class="ttname"><a href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a></div><div class="ttdeci">static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds)</div><div class="ttdoc">Executes the ChaCha hash core on an input memory block. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00230">ChaCha.cpp:230</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af533905f679066c41f4d6cd76bddb4cb"><div class="ttname"><a href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00218">ChaCha.cpp:218</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a41ac3262e52ff49dcd916d0b3b2e2038"><div class="ttname"><a href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a></div><div class="ttdeci">static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds)</div><div class="ttdoc">Executes the ChaCha hash core on an input memory block. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00253">ChaCha.cpp:253</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
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||||
<!-- start footer part -->
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<hr class="footer"/><address class="footer"><small>
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Generated on Sun Mar 29 2015 08:30:13 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
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</a> 1.8.6
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</small></address>
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||||
@ -115,55 +115,62 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "Cipher.h"</span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classChaCha.html"> 28</a></span> <span class="keyword">class </span><a class="code" href="classChaCha.html">ChaCha</a> : <span class="keyword">public</span> <a class="code" href="classCipher.html">Cipher</a></div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keyword">explicit</span> <a class="code" href="classChaCha.html#a5831811b705d3c80e97f0242597f0c7e">ChaCha</a>(uint8_t <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a> = 20);</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">virtual</span> ~<a class="code" href="classChaCha.html">ChaCha</a>();</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaCha.html#af286083291fab2bd36dc7ad1f54d5cd7">keySize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaCha.html#afaa3df343a7d07976bd7e03a0c1bf43c">ivSize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classChaCha.html#a0a73d3623da377bc593876156768dd72"> 37</a></span>  uint8_t <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> rounds; }</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classChaCha.html#a1a0911e0be8f4590d7fb76884d98c541"> 38</a></span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a1a0911e0be8f4590d7fb76884d98c541">setNumRounds</a>(uint8_t <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a>) { rounds = <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a>; }</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#a6b2bdffbd3705e388bb458edb2f40c90">setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259">setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#acab9109b7189ea88d9e5417a3a209eac">setCounter</a>(<span class="keyword">const</span> uint8_t *counter, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a1f54b2b51b59428010f81a6c4dc4e42c">decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">clear</a>();</div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">class </span><a class="code" href="classChaChaPoly.html">ChaChaPoly</a>;</div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="classChaCha.html"> 30</a></span> <span class="keyword">class </span><a class="code" href="classChaCha.html">ChaCha</a> : <span class="keyword">public</span> <a class="code" href="classCipher.html">Cipher</a></div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">explicit</span> <a class="code" href="classChaCha.html#a5831811b705d3c80e97f0242597f0c7e">ChaCha</a>(uint8_t <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a> = 20);</div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">virtual</span> ~<a class="code" href="classChaCha.html">ChaCha</a>();</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaCha.html#af286083291fab2bd36dc7ad1f54d5cd7">keySize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">size_t</span> <a class="code" href="classChaCha.html#afaa3df343a7d07976bd7e03a0c1bf43c">ivSize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="classChaCha.html#a0a73d3623da377bc593876156768dd72"> 39</a></span>  uint8_t <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> rounds; }</div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classChaCha.html#a1a0911e0be8f4590d7fb76884d98c541"> 40</a></span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a1a0911e0be8f4590d7fb76884d98c541">setNumRounds</a>(uint8_t <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a>) { rounds = <a class="code" href="classChaCha.html#a0a73d3623da377bc593876156768dd72">numRounds</a>; }</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#a6b2bdffbd3705e388bb458edb2f40c90">setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259">setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">bool</span> <a class="code" href="classChaCha.html#acab9109b7189ea88d9e5417a3a209eac">setCounter</a>(<span class="keyword">const</span> uint8_t *counter, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a1f54b2b51b59428010f81a6c4dc4e42c">decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">hashCore</a>(uint32_t *output, <span class="keyword">const</span> uint32_t *input, uint8_t rounds);</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">clear</a>();</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  uint8_t block[64];</div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  uint8_t stream[64];</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  uint8_t rounds;</div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  uint8_t posn;</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> };</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">hashCore</a>(uint32_t *output, <span class="keyword">const</span> uint32_t *input, uint8_t rounds);</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  uint8_t block[64];</div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  uint8_t stream[64];</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  uint8_t rounds;</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  uint8_t posn;</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span> keystreamBlock(uint32_t *output);</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classChaChaPoly.html">ChaChaPoly</a>;</div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> };</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classCipher_html"><div class="ttname"><a href="classCipher.html">Cipher</a></div><div class="ttdoc">Abstract base class for stream ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="Cipher_8h_source.html#l00029">Cipher.h:29</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_afaa3df343a7d07976bd7e03a0c1bf43c"><div class="ttname"><a href="classChaCha.html#afaa3df343a7d07976bd7e03a0c1bf43c">ChaCha::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Size of the initialization vector for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00065">ChaCha.cpp:65</a></div></div>
|
||||
<div class="ttc" id="classChaChaPoly_html"><div class="ttname"><a href="classChaChaPoly.html">ChaChaPoly</a></div><div class="ttdoc">Authenticated cipher based on ChaCha and Poly1305. </div><div class="ttdef"><b>Definition:</b> <a href="ChaChaPoly_8h_source.html#l00030">ChaChaPoly.h:30</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a6b2bdffbd3705e388bb458edb2f40c90"><div class="ttname"><a href="classChaCha.html#a6b2bdffbd3705e388bb458edb2f40c90">ChaCha::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00087">ChaCha.cpp:87</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html"><div class="ttname"><a href="classChaCha.html">ChaCha</a></div><div class="ttdoc">ChaCha stream cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00028">ChaCha.h:28</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html"><div class="ttname"><a href="classChaCha.html">ChaCha</a></div><div class="ttdoc">ChaCha stream cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00030">ChaCha.h:30</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af286083291fab2bd36dc7ad1f54d5cd7"><div class="ttname"><a href="classChaCha.html#af286083291fab2bd36dc7ad1f54d5cd7">ChaCha::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Default size of the key for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00059">ChaCha.cpp:59</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a734f3246b1e6810c63637b8cda26b259"><div class="ttname"><a href="classChaCha.html#a734f3246b1e6810c63637b8cda26b259">ChaCha::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00111">ChaCha.cpp:111</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_acab9109b7189ea88d9e5417a3a209eac"><div class="ttname"><a href="classChaCha.html#acab9109b7189ea88d9e5417a3a209eac">ChaCha::setCounter</a></div><div class="ttdeci">bool setCounter(const uint8_t *counter, size_t len)</div><div class="ttdoc">Sets the starting counter for encryption. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00145">ChaCha.cpp:145</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a5831811b705d3c80e97f0242597f0c7e"><div class="ttname"><a href="classChaCha.html#a5831811b705d3c80e97f0242597f0c7e">ChaCha::ChaCha</a></div><div class="ttdeci">ChaCha(uint8_t numRounds=20)</div><div class="ttdoc">Constructs a new ChaCha stream cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00047">ChaCha.cpp:47</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a1f54b2b51b59428010f81a6c4dc4e42c"><div class="ttname"><a href="classChaCha.html#a1f54b2b51b59428010f81a6c4dc4e42c">ChaCha::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00190">ChaCha.cpp:190</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_acd4fff140b8871c233d9a31abf753ed8"><div class="ttname"><a href="classChaCha.html#acd4fff140b8871c233d9a31abf753ed8">ChaCha::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00158">ChaCha.cpp:158</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af533905f679066c41f4d6cd76bddb4cb"><div class="ttname"><a href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00195">ChaCha.cpp:195</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a0a73d3623da377bc593876156768dd72"><div class="ttname"><a href="classChaCha.html#a0a73d3623da377bc593876156768dd72">ChaCha::numRounds</a></div><div class="ttdeci">uint8_t numRounds() const </div><div class="ttdoc">Returns the number of encryption rounds; usually 8, 12, or 20. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00037">ChaCha.h:37</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a1a0911e0be8f4590d7fb76884d98c541"><div class="ttname"><a href="classChaCha.html#a1a0911e0be8f4590d7fb76884d98c541">ChaCha::setNumRounds</a></div><div class="ttdeci">void setNumRounds(uint8_t numRounds)</div><div class="ttdoc">Sets the number of encryption rounds. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00038">ChaCha.h:38</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a41ac3262e52ff49dcd916d0b3b2e2038"><div class="ttname"><a href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a></div><div class="ttdeci">static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds)</div><div class="ttdoc">Executes the ChaCha hash core on an input memory block. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00230">ChaCha.cpp:230</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_af533905f679066c41f4d6cd76bddb4cb"><div class="ttname"><a href="classChaCha.html#af533905f679066c41f4d6cd76bddb4cb">ChaCha::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00218">ChaCha.cpp:218</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a0a73d3623da377bc593876156768dd72"><div class="ttname"><a href="classChaCha.html#a0a73d3623da377bc593876156768dd72">ChaCha::numRounds</a></div><div class="ttdeci">uint8_t numRounds() const </div><div class="ttdoc">Returns the number of encryption rounds; usually 8, 12, or 20. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00039">ChaCha.h:39</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a1a0911e0be8f4590d7fb76884d98c541"><div class="ttname"><a href="classChaCha.html#a1a0911e0be8f4590d7fb76884d98c541">ChaCha::setNumRounds</a></div><div class="ttdeci">void setNumRounds(uint8_t numRounds)</div><div class="ttdoc">Sets the number of encryption rounds. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8h_source.html#l00040">ChaCha.h:40</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a41ac3262e52ff49dcd916d0b3b2e2038"><div class="ttname"><a href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a></div><div class="ttdeci">static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds)</div><div class="ttdoc">Executes the ChaCha hash core on an input memory block. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00253">ChaCha.cpp:253</a></div></div>
|
||||
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</a> 1.8.6
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|
||||
@ -232,7 +232,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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||||
@ -162,7 +162,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -160,7 +160,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -149,7 +149,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -125,7 +125,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -148,7 +148,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -124,10 +124,21 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  }</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> }</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">bool</span> secure_compare(<span class="keyword">const</span> <span class="keywordtype">void</span> *data1, <span class="keyword">const</span> <span class="keywordtype">void</span> *data2, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> {</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  uint8_t result = 0;</div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> uint8_t *d1 = (<span class="keyword">const</span> uint8_t *)data1;</div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">const</span> uint8_t *d2 = (<span class="keyword">const</span> uint8_t *)data2;</div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  result |= (*d1++ ^ *d2++);</div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  --len;</div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  }</div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> (<span class="keywordtype">bool</span>)((((uint16_t)0x0100) - result) >> 8);</div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> }</div>
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</a> 1.8.6
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|
||||
@ -124,11 +124,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  clean(&var, <span class="keyword">sizeof</span>(T));</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keywordtype">bool</span> secure_compare(<span class="keyword">const</span> <span class="keywordtype">void</span> *data1, <span class="keyword">const</span> <span class="keywordtype">void</span> *data2, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#endif</span></div>
|
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -436,7 +436,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  }</div>
|
||||
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> }</div>
|
||||
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> </div>
|
||||
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> Curve25519::limb_t Curve25519::reduceQuick(limb_t *x)</div>
|
||||
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> limb_t Curve25519::reduceQuick(limb_t *x)</div>
|
||||
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> {</div>
|
||||
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  limb_t temp[NUM_LIMBS];</div>
|
||||
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  dlimb_t carry;</div>
|
||||
@ -509,13 +509,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="keywordtype">void</span> Curve25519::mulA24(limb_t *result, <span class="keyword">const</span> limb_t *x)</div>
|
||||
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> {</div>
|
||||
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="comment">// The constant a24 = 121665 (0x1DB41) as a limb array.</span></div>
|
||||
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="preprocessor">#if CURVE25519_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> <span class="preprocessor">#if BIGNUMBER_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="preprocessor"></span> <span class="keyword">static</span> limb_t <span class="keyword">const</span> a24[3] PROGMEM = {0x41, 0xDB, 0x01};</div>
|
||||
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="preprocessor"> #define pgm_read_a24(index) (pgm_read_byte(&(a24[(index)])))</span></div>
|
||||
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="preprocessor"></span><span class="preprocessor">#elif CURVE25519_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span> <span class="preprocessor"></span><span class="preprocessor">#elif BIGNUMBER_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="preprocessor"></span> <span class="keyword">static</span> limb_t <span class="keyword">const</span> a24[2] PROGMEM = {0xDB41, 0x0001};</div>
|
||||
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="preprocessor"> #define pgm_read_a24(index) (pgm_read_word(&(a24[(index)])))</span></div>
|
||||
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="preprocessor"></span><span class="preprocessor">#elif CURVE25519_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span> <span class="preprocessor"></span><span class="preprocessor">#elif BIGNUMBER_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="preprocessor"></span> <span class="keyword">static</span> limb_t <span class="keyword">const</span> a24[1] PROGMEM = {0x0001DB41};</div>
|
||||
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="preprocessor"> #define pgm_read_a24(index) (pgm_read_dword(&(a24[(index)])))</span></div>
|
||||
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
|
||||
@ -671,15 +671,15 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span> </div>
|
||||
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span> <span class="keywordtype">void</span> Curve25519::unpack(limb_t *result, <span class="keyword">const</span> uint8_t *x)</div>
|
||||
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span> {</div>
|
||||
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="preprocessor">#if CURVE25519_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span> <span class="preprocessor">#if BIGNUMBER_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span> <span class="preprocessor"></span> memcpy(result, x, 32);</div>
|
||||
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  result[31] &= 0x7F;</div>
|
||||
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="preprocessor">#elif CURVE25519_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="preprocessor">#elif BIGNUMBER_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
|
||||
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  result[posn] = ((limb_t)x[posn * 2]) | (((limb_t)x[posn * 2 + 1]) << 8);</div>
|
||||
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  }</div>
|
||||
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  result[15] &= 0x7FFF;</div>
|
||||
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span> <span class="preprocessor">#elif CURVE25519_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span> <span class="preprocessor">#elif BIGNUMBER_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 8; ++posn) {</div>
|
||||
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  result[posn] = ((limb_t)x[posn * 4]) |</div>
|
||||
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  (((limb_t)x[posn * 4 + 1]) << 8) |</div>
|
||||
@ -692,15 +692,15 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span> </div>
|
||||
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span> <span class="keywordtype">void</span> Curve25519::pack(uint8_t *result, <span class="keyword">const</span> limb_t *x)</div>
|
||||
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span> {</div>
|
||||
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="preprocessor">#if CURVE25519_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span> <span class="preprocessor">#if BIGNUMBER_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span> <span class="preprocessor"></span> memcpy(result, x, 32);</div>
|
||||
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="preprocessor">#elif CURVE25519_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span> <span class="preprocessor">#elif BIGNUMBER_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
|
||||
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  limb_t value = x[posn];</div>
|
||||
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  result[posn * 2] = (uint8_t)value;</div>
|
||||
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  result[posn * 2 + 1] = (uint8_t)(value >> 8);</div>
|
||||
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  }</div>
|
||||
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span> <span class="preprocessor">#elif CURVE25519_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span> <span class="preprocessor">#elif BIGNUMBER_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span> <span class="preprocessor"></span> <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 8; ++posn) {</div>
|
||||
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  limb_t value = x[posn];</div>
|
||||
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  result[posn * 4] = (uint8_t)value;</div>
|
||||
@ -717,7 +717,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
</div><!-- fragment --></div><!-- contents -->
|
||||
<!-- start footer part -->
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<hr class="footer"/><address class="footer"><small>
|
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Generated on Sun Mar 29 2015 08:30:13 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
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Generated on Wed Apr 1 2015 16:36:10 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
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<img class="footer" src="doxygen.png" alt="doxygen"/>
|
||||
</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -113,82 +113,59 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_CURVE15519_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_CURVE15519_h</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <inttypes.h></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "BigNumberUtil.h"</span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <stddef.h></span></div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// Define exactly one of these to 1 to set the size of the basic limb type.</span></div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// 16-bit limbs seems to give the best performance on 8-bit AVR micros.</span></div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#define CURVE25519_LIMB_8BIT 0</span></div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor"></span><span class="preprocessor">#define CURVE25519_LIMB_16BIT 1</span></div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#define CURVE25519_LIMB_32BIT 0</span></div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classCurve25519.html"> 35</a></span> <span class="keyword">class </span><a class="code" href="classCurve25519.html">Curve25519</a></div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> {</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classCurve25519.html#a2e4b7dd83a019b32c76584c99bfda21a">eval</a>(uint8_t result[32], <span class="keyword">const</span> uint8_t s[32], <span class="keyword">const</span> uint8_t x[32]);</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCurve25519.html#a2b6911583d17ea9a36bbbb40d58b3d89">dh1</a>(uint8_t k[32], uint8_t f[32]);</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classCurve25519.html#a14022d6ac68ec691ffb0247275078ab9">dh2</a>(uint8_t k[32], uint8_t f[32]);</div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#if defined(TEST_CURVE25519_FIELD_OPS)</span></div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor"></span><span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"></span><span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span> <span class="comment">// Define the limb types to use on this platform.</span></div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor"> #if CURVE25519_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"></span> <span class="keyword">typedef</span> uint8_t limb_t;</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">typedef</span> int8_t slimb_t;</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">typedef</span> uint16_t dlimb_t;</div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"> #elif CURVE25519_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"></span> <span class="keyword">typedef</span> uint16_t limb_t;</div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">typedef</span> int16_t slimb_t;</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">typedef</span> uint32_t dlimb_t;</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor"> #elif CURVE25519_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"></span> <span class="keyword">typedef</span> uint32_t limb_t;</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">typedef</span> int32_t slimb_t;</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">typedef</span> uint64_t dlimb_t;</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"> #else</span></div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor"></span><span class="preprocessor"> #error "limb_t must be 8, 16, or 32 bits in size"</span></div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span><span class="preprocessor"> #endif</span></div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">static</span> uint8_t isWeakPoint(<span class="keyword">const</span> uint8_t k[32]);</div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> reduce(limb_t *result, limb_t *x, uint8_t size);</div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">static</span> limb_t reduceQuick(limb_t *x);</div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classCurve25519.html"> 29</a></span> <span class="keyword">class </span><a class="code" href="classCurve25519.html">Curve25519</a></div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classCurve25519.html#a2e4b7dd83a019b32c76584c99bfda21a">eval</a>(uint8_t result[32], <span class="keyword">const</span> uint8_t s[32], <span class="keyword">const</span> uint8_t x[32]);</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCurve25519.html#a2b6911583d17ea9a36bbbb40d58b3d89">dh1</a>(uint8_t k[32], uint8_t f[32]);</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classCurve25519.html#a14022d6ac68ec691ffb0247275078ab9">dh2</a>(uint8_t k[32], uint8_t f[32]);</div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#if defined(TEST_CURVE25519_FIELD_OPS)</span></div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor"></span><span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor"></span> <span class="keyword">static</span> uint8_t isWeakPoint(<span class="keyword">const</span> uint8_t k[32]);</div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> reduce(limb_t *result, limb_t *x, uint8_t size);</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">static</span> limb_t reduceQuick(limb_t *x);</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> mul(limb_t *result, <span class="keyword">const</span> limb_t *x, <span class="keyword">const</span> limb_t *y);</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> square(limb_t *result, <span class="keyword">const</span> limb_t *x)</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  mul(result, x, x);</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  }</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> mulA24(limb_t *result, <span class="keyword">const</span> limb_t *x);</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> add(limb_t *result, <span class="keyword">const</span> limb_t *x, <span class="keyword">const</span> limb_t *y);</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> sub(limb_t *result, <span class="keyword">const</span> limb_t *x, <span class="keyword">const</span> limb_t *y);</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> cswap(uint8_t select, limb_t *x, limb_t *y);</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> recip(limb_t *result, <span class="keyword">const</span> limb_t *x);</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> unpack(limb_t *result, <span class="keyword">const</span> uint8_t *x);</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> pack(uint8_t *result, <span class="keyword">const</span> limb_t *x);</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// Constructor and destructor are private - cannot instantiate this class.</span></div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="classCurve25519.html">Curve25519</a>() {}</div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  ~<a class="code" href="classCurve25519.html">Curve25519</a>() {}</div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> };</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> mul(limb_t *result, <span class="keyword">const</span> limb_t *x, <span class="keyword">const</span> limb_t *y);</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> square(limb_t *result, <span class="keyword">const</span> limb_t *x)</div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  {</div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  mul(result, x, x);</div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> mulA24(limb_t *result, <span class="keyword">const</span> limb_t *x);</div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> add(limb_t *result, <span class="keyword">const</span> limb_t *x, <span class="keyword">const</span> limb_t *y);</div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> sub(limb_t *result, <span class="keyword">const</span> limb_t *x, <span class="keyword">const</span> limb_t *y);</div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
|
||||
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> cswap(uint8_t select, limb_t *x, limb_t *y);</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> recip(limb_t *result, <span class="keyword">const</span> limb_t *x);</div>
|
||||
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> unpack(limb_t *result, <span class="keyword">const</span> uint8_t *x);</div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> pack(uint8_t *result, <span class="keyword">const</span> limb_t *x);</div>
|
||||
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
|
||||
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// Constructor and destructor are private - cannot instantiate this class.</span></div>
|
||||
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="classCurve25519.html">Curve25519</a>() {}</div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  ~<a class="code" href="classCurve25519.html">Curve25519</a>() {}</div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> };</div>
|
||||
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classCurve25519_html"><div class="ttname"><a href="classCurve25519.html">Curve25519</a></div><div class="ttdoc">Diffie-Hellman key agreement based on the elliptic curve modulo 2^255 - 19. </div><div class="ttdef"><b>Definition:</b> <a href="Curve25519_8h_source.html#l00035">Curve25519.h:35</a></div></div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classCurve25519_html"><div class="ttname"><a href="classCurve25519.html">Curve25519</a></div><div class="ttdoc">Diffie-Hellman key agreement based on the elliptic curve modulo 2^255 - 19. </div><div class="ttdef"><b>Definition:</b> <a href="Curve25519_8h_source.html#l00029">Curve25519.h:29</a></div></div>
|
||||
<div class="ttc" id="classCurve25519_html_a2e4b7dd83a019b32c76584c99bfda21a"><div class="ttname"><a href="classCurve25519.html#a2e4b7dd83a019b32c76584c99bfda21a">Curve25519::eval</a></div><div class="ttdeci">static bool eval(uint8_t result[32], const uint8_t s[32], const uint8_t x[32])</div><div class="ttdoc">Evaluates the raw Curve25519 function. </div><div class="ttdef"><b>Definition:</b> <a href="Curve25519_8cpp_source.html#l00068">Curve25519.cpp:68</a></div></div>
|
||||
<div class="ttc" id="classCurve25519_html_a2b6911583d17ea9a36bbbb40d58b3d89"><div class="ttname"><a href="classCurve25519.html#a2b6911583d17ea9a36bbbb40d58b3d89">Curve25519::dh1</a></div><div class="ttdeci">static void dh1(uint8_t k[32], uint8_t f[32])</div><div class="ttdoc">Performs phase 1 of a Diffie-Hellman key exchange using Curve25519. </div><div class="ttdef"><b>Definition:</b> <a href="Curve25519_8cpp_source.html#l00231">Curve25519.cpp:231</a></div></div>
|
||||
<div class="ttc" id="classCurve25519_html_a14022d6ac68ec691ffb0247275078ab9"><div class="ttname"><a href="classCurve25519.html#a14022d6ac68ec691ffb0247275078ab9">Curve25519::dh2</a></div><div class="ttdeci">static bool dh2(uint8_t k[32], uint8_t f[32])</div><div class="ttdoc">Performs phase 2 of a Diffie-Hellman key exchange using Curve25519. </div><div class="ttdef"><b>Definition:</b> <a href="Curve25519_8cpp_source.html#l00269">Curve25519.cpp:269</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
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</a> 1.8.6
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@ -456,7 +456,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -170,7 +170,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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@ -415,7 +415,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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|
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "GCM.h"</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "Crypto.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <string.h></span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a1b05ff393e8c20db30cb991e875aab19"> 44</a></span> <a class="code" href="classGCMCommon.html#a1b05ff393e8c20db30cb991e875aab19">GCMCommon::GCMCommon</a>()</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  : blockCipher(0)</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  state.authSize = 0;</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  state.dataSize = 0;</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  state.dataStarted = <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  state.posn = 16;</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a0d3e1525d91adbbdcd5ac27793817112"> 56</a></span> <a class="code" href="classGCMCommon.html#a0d3e1525d91adbbdcd5ac27793817112">GCMCommon::~GCMCommon</a>()</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> {</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a134ba35e740a18bee3c45502b4149eae"> 61</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classGCMCommon.html#a134ba35e740a18bee3c45502b4149eae">GCMCommon::keySize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span> blockCipher-><a class="code" href="classBlockCipher.html#afde6004a859e015d877eab3c37042a0f">keySize</a>();</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a01cff072505e861fd20f6cfee1e10fb2"> 66</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classGCMCommon.html#a01cff072505e861fd20f6cfee1e10fb2">GCMCommon::ivSize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> 16;</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }</div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a935f343858e98ee331706daf43e34805"> 71</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classGCMCommon.html#a935f343858e98ee331706daf43e34805">GCMCommon::tagSize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// The GCM specification recommends an IV size of 96 bits.</span></div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> 12;</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> }</div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a397c5dddde828c59eb63367385aec562"> 77</a></span> <span class="keywordtype">bool</span> <a class="code" href="classGCMCommon.html#a397c5dddde828c59eb63367385aec562">GCMCommon::setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> {</div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// Set the encryption key for the block cipher.</span></div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">if</span> (!blockCipher-><a class="code" href="classBlockCipher.html#a9a05307664469777592799c8f77397c4">setKey</a>(key, len))</div>
|
||||
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// Construct the hashing key by encrypting a zero block.</span></div>
|
||||
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  memset(state.nonce, 0, 16);</div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(state.nonce, state.nonce);</div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  ghash.<a class="code" href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">reset</a>(state.nonce);</div>
|
||||
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> }</div>
|
||||
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a2545135fe42c832e40e057b603824524"> 90</a></span> <span class="keywordtype">bool</span> <a class="code" href="classGCMCommon.html#a2545135fe42c832e40e057b603824524">GCMCommon::setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> {</div>
|
||||
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// Note: We assume that setKey() has already been called to</span></div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// set the hashing key in the "ghash" object and that the</span></div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// hashing key itself is still stored in "state.nonce".</span></div>
|
||||
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
|
||||
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// Format the counter block from the IV.</span></div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (len == 12) {</div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// IV's of exactly 96 bits are used directly as the counter block.</span></div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  memcpy(state.counter, iv, 12);</div>
|
||||
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  state.counter[12] = 0;</div>
|
||||
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  state.counter[13] = 0;</div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  state.counter[14] = 0;</div>
|
||||
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  state.counter[15] = 1;</div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  } <span class="keywordflow">else</span> {</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// IV's of other sizes are hashed to produce the counter block.</span></div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  ghash.<a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(iv, len);</div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  ghash.<a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  uint64_t sizes[2] = {0, htobe64(((uint64_t)len) * 8)};</div>
|
||||
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  ghash.<a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(sizes, <span class="keyword">sizeof</span>(sizes));</div>
|
||||
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  clean(sizes);</div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  ghash.<a class="code" href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">finalize</a>(state.counter, 16);</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  ghash.<a class="code" href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">reset</a>(state.nonce);</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
|
||||
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// Reset the GCM object ready to process auth or payload data.</span></div>
|
||||
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  state.authSize = 0;</div>
|
||||
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  state.dataSize = 0;</div>
|
||||
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  state.dataStarted = <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  state.posn = 16;</div>
|
||||
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
|
||||
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// Replace the hash key in "nonce" with the encrypted counter.</span></div>
|
||||
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// This value will be XOR'ed with the final authentication hash</span></div>
|
||||
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// value in computeTag().</span></div>
|
||||
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(state.nonce, state.counter);</div>
|
||||
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div>
|
||||
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
|
||||
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> increment(uint8_t counter[16])</div>
|
||||
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> {</div>
|
||||
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  uint16_t carry = 1;</div>
|
||||
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  carry += counter[15];</div>
|
||||
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  counter[15] = (uint8_t)carry;</div>
|
||||
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  carry = (carry >> 8) + counter[14];</div>
|
||||
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  counter[14] = (uint8_t)carry;</div>
|
||||
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  carry = (carry >> 8) + counter[13];</div>
|
||||
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  counter[13] = (uint8_t)carry;</div>
|
||||
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  carry = (carry >> 8) + counter[12];</div>
|
||||
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  counter[12] = (uint8_t)carry;</div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
|
||||
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div>
|
||||
<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a01ac69afe3d9fc4d72b2ea5dc242e55c"> 145</a></span> <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a01ac69afe3d9fc4d72b2ea5dc242e55c">GCMCommon::encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> {</div>
|
||||
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Finalize the authenticated data if necessary.</span></div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (!state.dataStarted) {</div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  ghash.<a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  state.dataStarted = <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// Encrypt the plaintext using the block cipher in counter mode.</span></div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  uint8_t *out = output;</div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">size_t</span> size = len;</div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">while</span> (size > 0) {</div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// Create a new keystream block if necessary.</span></div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (state.posn >= 16) {</div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  increment(state.counter);</div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(state.stream, state.counter);</div>
|
||||
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  state.posn = 0;</div>
|
||||
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div>
|
||||
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
|
||||
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="comment">// Encrypt as many bytes as we can using the keystream block.</span></div>
|
||||
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  uint8_t temp = 16 - state.posn;</div>
|
||||
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">if</span> (temp > size)</div>
|
||||
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  temp = size;</div>
|
||||
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  uint8_t *stream = state.stream + state.posn;</div>
|
||||
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  state.posn += temp;</div>
|
||||
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  size -= temp;</div>
|
||||
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">while</span> (temp > 0) {</div>
|
||||
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  *out++ = *input++ ^ *stream++;</div>
|
||||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  --temp;</div>
|
||||
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
|
||||
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div>
|
||||
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
|
||||
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// Feed the ciphertext into the hash.</span></div>
|
||||
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  ghash.<a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(output, len);</div>
|
||||
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  state.dataSize += len;</div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> }</div>
|
||||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
|
||||
<div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a60912d3ab5766aa68dc9b3111ac2c0d7"> 182</a></span> <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a60912d3ab5766aa68dc9b3111ac2c0d7">GCMCommon::decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> {</div>
|
||||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Finalize the authenticated data if necessary.</span></div>
|
||||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">if</span> (!state.dataStarted) {</div>
|
||||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  ghash.<a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  state.dataStarted = <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  }</div>
|
||||
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
|
||||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// Feed the ciphertext into the hash before we decrypt it.</span></div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  ghash.<a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(input, len);</div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  state.dataSize += len;</div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
|
||||
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="comment">// Decrypt the plaintext using the block cipher in counter mode.</span></div>
|
||||
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// Create a new keystream block if necessary.</span></div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (state.posn >= 16) {</div>
|
||||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  increment(state.counter);</div>
|
||||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(state.stream, state.counter);</div>
|
||||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  state.posn = 0;</div>
|
||||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div>
|
||||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div>
|
||||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// Decrypt as many bytes as we can using the keystream block.</span></div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  uint8_t temp = 16 - state.posn;</div>
|
||||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (temp > len)</div>
|
||||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  temp = len;</div>
|
||||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  uint8_t *stream = state.stream + state.posn;</div>
|
||||
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  state.posn += temp;</div>
|
||||
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  len -= temp;</div>
|
||||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">while</span> (temp > 0) {</div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  *output++ = *input++ ^ *stream++;</div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  --temp;</div>
|
||||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
|
||||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> }</div>
|
||||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
|
||||
<div class="line"><a name="l00217"></a><span class="lineno"><a class="line" href="classGCMCommon.html#ad926e980ae2d61c10c9bf82813154a25"> 217</a></span> <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#ad926e980ae2d61c10c9bf82813154a25">GCMCommon::addAuthData</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> {</div>
|
||||
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">if</span> (!state.dataStarted) {</div>
|
||||
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  ghash.<a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(data, len);</div>
|
||||
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  state.authSize += len;</div>
|
||||
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div>
|
||||
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div>
|
||||
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
|
||||
<div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a444634bd4469bb5d404ac882d1d8fdf4"> 225</a></span> <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a444634bd4469bb5d404ac882d1d8fdf4">GCMCommon::computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> {</div>
|
||||
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">// Pad the hashed data and add the sizes.</span></div>
|
||||
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  ghash.<a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</div>
|
||||
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  uint64_t sizes[2] = {</div>
|
||||
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  htobe64(state.authSize * 8),</div>
|
||||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  htobe64(state.dataSize * 8)</div>
|
||||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  };</div>
|
||||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  ghash.<a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(sizes, <span class="keyword">sizeof</span>(sizes));</div>
|
||||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  clean(sizes);</div>
|
||||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
|
||||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// Get the finalized hash, encrypt it with the nonce, and return the tag.</span></div>
|
||||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  ghash.<a class="code" href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">finalize</a>(state.stream, 16);</div>
|
||||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn)</div>
|
||||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  state.stream[posn] ^= state.nonce[posn];</div>
|
||||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  if (len > 16)</div>
|
||||
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  len = 16;</div>
|
||||
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  memcpy(tag, state.stream, len);</div>
|
||||
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> }</div>
|
||||
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div>
|
||||
<div class="line"><a name="l00245"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a70229be2fe2274c4109fe7511481075a"> 245</a></span> <span class="keywordtype">bool</span> <a class="code" href="classGCMCommon.html#a70229be2fe2274c4109fe7511481075a">GCMCommon::checkTag</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> {</div>
|
||||
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="comment">// Can never match if the expected tag length is too long.</span></div>
|
||||
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
|
||||
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// Compute the tag and check it.</span></div>
|
||||
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="code" href="classGCMCommon.html#a444634bd4469bb5d404ac882d1d8fdf4">computeTag</a>(state.counter, 16);</div>
|
||||
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">return</span> secure_compare(state.counter, tag, len);</div>
|
||||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> }</div>
|
||||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> </div>
|
||||
<div class="line"><a name="l00256"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a06868ebd67a571aa68d88d5d072cece9"> 256</a></span> <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a06868ebd67a571aa68d88d5d072cece9">GCMCommon::clear</a>()</div>
|
||||
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> {</div>
|
||||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  blockCipher-><a class="code" href="classBlockCipher.html#a6f27d46e9dfa7761d014d828ad5f955b">clear</a>();</div>
|
||||
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  ghash.<a class="code" href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">clear</a>();</div>
|
||||
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  state.posn = 16;</div>
|
||||
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> }</div>
|
||||
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
|
||||
<div class="ttc" id="classGCMCommon_html_a444634bd4469bb5d404ac882d1d8fdf4"><div class="ttname"><a href="classGCMCommon.html#a444634bd4469bb5d404ac882d1d8fdf4">GCMCommon::computeTag</a></div><div class="ttdeci">void computeTag(void *tag, size_t len)</div><div class="ttdoc">Finalizes the encryption process and computes the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00225">GCM.cpp:225</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a397c5dddde828c59eb63367385aec562"><div class="ttname"><a href="classGCMCommon.html#a397c5dddde828c59eb63367385aec562">GCMCommon::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00077">GCM.cpp:77</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a935f343858e98ee331706daf43e34805"><div class="ttname"><a href="classGCMCommon.html#a935f343858e98ee331706daf43e34805">GCMCommon::tagSize</a></div><div class="ttdeci">size_t tagSize() const </div><div class="ttdoc">Returns the size of the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00071">GCM.cpp:71</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a01ac69afe3d9fc4d72b2ea5dc242e55c"><div class="ttname"><a href="classGCMCommon.html#a01ac69afe3d9fc4d72b2ea5dc242e55c">GCMCommon::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00145">GCM.cpp:145</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a06868ebd67a571aa68d88d5d072cece9"><div class="ttname"><a href="classGCMCommon.html#a06868ebd67a571aa68d88d5d072cece9">GCMCommon::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00256">GCM.cpp:256</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a70229be2fe2274c4109fe7511481075a"><div class="ttname"><a href="classGCMCommon.html#a70229be2fe2274c4109fe7511481075a">GCMCommon::checkTag</a></div><div class="ttdeci">bool checkTag(const void *tag, size_t len)</div><div class="ttdoc">Finalizes the decryption process and checks the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00245">GCM.cpp:245</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a01cff072505e861fd20f6cfee1e10fb2"><div class="ttname"><a href="classGCMCommon.html#a01cff072505e861fd20f6cfee1e10fb2">GCMCommon::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Size of the initialization vector for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00066">GCM.cpp:66</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_ab221298ca69c9612bfbfd3dedcb28307"><div class="ttname"><a href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">GHASH::finalize</a></div><div class="ttdeci">void finalize(void *token, size_t len)</div><div class="ttdoc">Finalizes the authentication process and returns the token. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00130">GHASH.cpp:130</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_ad926e980ae2d61c10c9bf82813154a25"><div class="ttname"><a href="classGCMCommon.html#ad926e980ae2d61c10c9bf82813154a25">GCMCommon::addAuthData</a></div><div class="ttdeci">void addAuthData(const void *data, size_t len)</div><div class="ttdoc">Adds extra data that will be authenticated but not encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00217">GCM.cpp:217</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a235edb14c6ed1ec55ddda595816ef1c7"><div class="ttname"><a href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">GHASH::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the message authenticator with more data. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00094">GHASH.cpp:94</a></div></div>
|
||||
<div class="ttc" id="classBlockCipher_html_aed0788b25f6bb2f1bd47d5a5f0c5db33"><div class="ttname"><a href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">BlockCipher::encryptBlock</a></div><div class="ttdeci">virtual void encryptBlock(uint8_t *output, const uint8_t *input)=0</div><div class="ttdoc">Encrypts a single block using this cipher. </div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a60912d3ab5766aa68dc9b3111ac2c0d7"><div class="ttname"><a href="classGCMCommon.html#a60912d3ab5766aa68dc9b3111ac2c0d7">GCMCommon::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00182">GCM.cpp:182</a></div></div>
|
||||
<div class="ttc" id="classBlockCipher_html_a9a05307664469777592799c8f77397c4"><div class="ttname"><a href="classBlockCipher.html#a9a05307664469777592799c8f77397c4">BlockCipher::setKey</a></div><div class="ttdeci">virtual bool setKey(const uint8_t *key, size_t len)=0</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a1b05ff393e8c20db30cb991e875aab19"><div class="ttname"><a href="classGCMCommon.html#a1b05ff393e8c20db30cb991e875aab19">GCMCommon::GCMCommon</a></div><div class="ttdeci">GCMCommon()</div><div class="ttdoc">Constructs a new cipher in GCM mode. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00044">GCM.cpp:44</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a8c38ee9313605f1d8b12dca7cd43e4ad"><div class="ttname"><a href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">GHASH::pad</a></div><div class="ttdeci">void pad()</div><div class="ttdoc">Pads the input stream with zero bytes to a multiple of 16. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00146">GHASH.cpp:146</a></div></div>
|
||||
<div class="ttc" id="classBlockCipher_html_a6f27d46e9dfa7761d014d828ad5f955b"><div class="ttname"><a href="classBlockCipher.html#a6f27d46e9dfa7761d014d828ad5f955b">BlockCipher::clear</a></div><div class="ttdeci">virtual void clear()=0</div><div class="ttdoc">Clears all security-sensitive state from this block cipher. </div></div>
|
||||
<div class="ttc" id="classGHASH_html_a4b1ee789debf56f7f24807960ef0556e"><div class="ttname"><a href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">GHASH::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the authenticator's state, removing all sensitive data. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00159">GHASH.cpp:159</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a0d3e1525d91adbbdcd5ac27793817112"><div class="ttname"><a href="classGCMCommon.html#a0d3e1525d91adbbdcd5ac27793817112">GCMCommon::~GCMCommon</a></div><div class="ttdeci">virtual ~GCMCommon()</div><div class="ttdoc">Destroys this cipher object after clearing sensitive information. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00056">GCM.cpp:56</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a2545135fe42c832e40e057b603824524"><div class="ttname"><a href="classGCMCommon.html#a2545135fe42c832e40e057b603824524">GCMCommon::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00090">GCM.cpp:90</a></div></div>
|
||||
<div class="ttc" id="classBlockCipher_html_afde6004a859e015d877eab3c37042a0f"><div class="ttname"><a href="classBlockCipher.html#afde6004a859e015d877eab3c37042a0f">BlockCipher::keySize</a></div><div class="ttdeci">virtual size_t keySize() const =0</div><div class="ttdoc">Default size of the key for this block cipher, in bytes. </div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a134ba35e740a18bee3c45502b4149eae"><div class="ttname"><a href="classGCMCommon.html#a134ba35e740a18bee3c45502b4149eae">GCMCommon::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Default size of the key for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00061">GCM.cpp:61</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a479a3e8c37e320bf99f54b95bf5f4c55"><div class="ttname"><a href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">GHASH::reset</a></div><div class="ttdeci">void reset(const void *key)</div><div class="ttdoc">Resets the GHASH message authenticator for a new session. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00067">GHASH.cpp:67</a></div></div>
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<li class="navelem"><a class="el" href="dir_bc0718b08fb2015b8e59c47b2805f60c.html">libraries</a></li><li class="navelem"><a class="el" href="dir_e2ce51835550ba18edf07a8311722290.html">Crypto</a></li> </ul>
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<div class="title">GCM.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_GCM_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_GCM_h</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "AuthenticatedCipher.h"</span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "BlockCipher.h"</span></div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "GHASH.h"</span></div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="classGCMCommon.html"> 30</a></span> <span class="keyword">class </span><a class="code" href="classGCMCommon.html">GCMCommon</a> : <span class="keyword">public</span> <a class="code" href="classAuthenticatedCipher.html">AuthenticatedCipher</a></div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">virtual</span> <a class="code" href="classGCMCommon.html#a0d3e1525d91adbbdcd5ac27793817112">~GCMCommon</a>();</div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">size_t</span> <a class="code" href="classGCMCommon.html#a134ba35e740a18bee3c45502b4149eae">keySize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">size_t</span> <a class="code" href="classGCMCommon.html#a01cff072505e861fd20f6cfee1e10fb2">ivSize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">size_t</span> <a class="code" href="classGCMCommon.html#a935f343858e98ee331706daf43e34805">tagSize</a>() <span class="keyword">const</span>;</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">bool</span> <a class="code" href="classGCMCommon.html#a397c5dddde828c59eb63367385aec562">setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">bool</span> <a class="code" href="classGCMCommon.html#a2545135fe42c832e40e057b603824524">setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a01ac69afe3d9fc4d72b2ea5dc242e55c">encrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a60912d3ab5766aa68dc9b3111ac2c0d7">decrypt</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#ad926e980ae2d61c10c9bf82813154a25">addAuthData</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a444634bd4469bb5d404ac882d1d8fdf4">computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">bool</span> <a class="code" href="classGCMCommon.html#a70229be2fe2274c4109fe7511481075a">checkTag</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a06868ebd67a571aa68d88d5d072cece9">clear</a>();</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">protected</span>:</div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="classGCMCommon.html#a1b05ff393e8c20db30cb991e875aab19">GCMCommon</a>();</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classGCMCommon.html#a7abd3044862f8634f3b176aafa779ba2"> 54</a></span>  <span class="keywordtype">void</span> <a class="code" href="classGCMCommon.html#a7abd3044862f8634f3b176aafa779ba2">setBlockCipher</a>(<a class="code" href="classBlockCipher.html">BlockCipher</a> *cipher) { blockCipher = cipher; }</div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="classBlockCipher.html">BlockCipher</a> *blockCipher;</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="classGHASH.html">GHASH</a> ghash;</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">struct </span>{</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  uint8_t counter[16];</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  uint8_t stream[16];</div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  uint8_t nonce[16];</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  uint64_t authSize;</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uint64_t dataSize;</div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">bool</span> dataStarted;</div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  uint8_t posn;</div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  } state;</div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> };</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classGCM.html"> 71</a></span> <span class="keyword">class </span><a class="code" href="classGCM.html">GCM</a> : <span class="keyword">public</span> <a class="code" href="classGCMCommon.html">GCMCommon</a></div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> {</div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="classGCM.html#acbef04a5593177aabf19df538ad3def7"> 74</a></span>  <a class="code" href="classGCM.html#acbef04a5593177aabf19df538ad3def7">GCM</a>() { <a class="code" href="classGCMCommon.html#a7abd3044862f8634f3b176aafa779ba2">setBlockCipher</a>(&cipher); }</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  T cipher;</div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> };</div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a444634bd4469bb5d404ac882d1d8fdf4"><div class="ttname"><a href="classGCMCommon.html#a444634bd4469bb5d404ac882d1d8fdf4">GCMCommon::computeTag</a></div><div class="ttdeci">void computeTag(void *tag, size_t len)</div><div class="ttdoc">Finalizes the encryption process and computes the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00225">GCM.cpp:225</a></div></div>
|
||||
<div class="ttc" id="classGCM_html"><div class="ttname"><a href="classGCM.html">GCM</a></div><div class="ttdoc">Implementation of the Galois Counter Mode (GCM). </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8h_source.html#l00071">GCM.h:71</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a397c5dddde828c59eb63367385aec562"><div class="ttname"><a href="classGCMCommon.html#a397c5dddde828c59eb63367385aec562">GCMCommon::setKey</a></div><div class="ttdeci">bool setKey(const uint8_t *key, size_t len)</div><div class="ttdoc">Sets the key to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00077">GCM.cpp:77</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a935f343858e98ee331706daf43e34805"><div class="ttname"><a href="classGCMCommon.html#a935f343858e98ee331706daf43e34805">GCMCommon::tagSize</a></div><div class="ttdeci">size_t tagSize() const </div><div class="ttdoc">Returns the size of the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00071">GCM.cpp:71</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a01ac69afe3d9fc4d72b2ea5dc242e55c"><div class="ttname"><a href="classGCMCommon.html#a01ac69afe3d9fc4d72b2ea5dc242e55c">GCMCommon::encrypt</a></div><div class="ttdeci">void encrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Encrypts an input buffer and writes the ciphertext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00145">GCM.cpp:145</a></div></div>
|
||||
<div class="ttc" id="classBlockCipher_html"><div class="ttname"><a href="classBlockCipher.html">BlockCipher</a></div><div class="ttdoc">Abstract base class for block ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="BlockCipher_8h_source.html#l00029">BlockCipher.h:29</a></div></div>
|
||||
<div class="ttc" id="classGCM_html_acbef04a5593177aabf19df538ad3def7"><div class="ttname"><a href="classGCM.html#acbef04a5593177aabf19df538ad3def7">GCM::GCM</a></div><div class="ttdeci">GCM()</div><div class="ttdoc">Constructs a new GCM object for the block cipher T. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8h_source.html#l00074">GCM.h:74</a></div></div>
|
||||
<div class="ttc" id="classAuthenticatedCipher_html"><div class="ttname"><a href="classAuthenticatedCipher.html">AuthenticatedCipher</a></div><div class="ttdoc">Abstract base class for authenticated ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="AuthenticatedCipher_8h_source.html#l00028">AuthenticatedCipher.h:28</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html"><div class="ttname"><a href="classGCMCommon.html">GCMCommon</a></div><div class="ttdoc">Concrete base class to assist with implementing GCM for 128-bit block ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8h_source.html#l00030">GCM.h:30</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a06868ebd67a571aa68d88d5d072cece9"><div class="ttname"><a href="classGCMCommon.html#a06868ebd67a571aa68d88d5d072cece9">GCMCommon::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00256">GCM.cpp:256</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a70229be2fe2274c4109fe7511481075a"><div class="ttname"><a href="classGCMCommon.html#a70229be2fe2274c4109fe7511481075a">GCMCommon::checkTag</a></div><div class="ttdeci">bool checkTag(const void *tag, size_t len)</div><div class="ttdoc">Finalizes the decryption process and checks the authentication tag. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00245">GCM.cpp:245</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a01cff072505e861fd20f6cfee1e10fb2"><div class="ttname"><a href="classGCMCommon.html#a01cff072505e861fd20f6cfee1e10fb2">GCMCommon::ivSize</a></div><div class="ttdeci">size_t ivSize() const </div><div class="ttdoc">Size of the initialization vector for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00066">GCM.cpp:66</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_ad926e980ae2d61c10c9bf82813154a25"><div class="ttname"><a href="classGCMCommon.html#ad926e980ae2d61c10c9bf82813154a25">GCMCommon::addAuthData</a></div><div class="ttdeci">void addAuthData(const void *data, size_t len)</div><div class="ttdoc">Adds extra data that will be authenticated but not encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00217">GCM.cpp:217</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a60912d3ab5766aa68dc9b3111ac2c0d7"><div class="ttname"><a href="classGCMCommon.html#a60912d3ab5766aa68dc9b3111ac2c0d7">GCMCommon::decrypt</a></div><div class="ttdeci">void decrypt(uint8_t *output, const uint8_t *input, size_t len)</div><div class="ttdoc">Decrypts an input buffer and writes the plaintext to an output buffer. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00182">GCM.cpp:182</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a1b05ff393e8c20db30cb991e875aab19"><div class="ttname"><a href="classGCMCommon.html#a1b05ff393e8c20db30cb991e875aab19">GCMCommon::GCMCommon</a></div><div class="ttdeci">GCMCommon()</div><div class="ttdoc">Constructs a new cipher in GCM mode. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00044">GCM.cpp:44</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a7abd3044862f8634f3b176aafa779ba2"><div class="ttname"><a href="classGCMCommon.html#a7abd3044862f8634f3b176aafa779ba2">GCMCommon::setBlockCipher</a></div><div class="ttdeci">void setBlockCipher(BlockCipher *cipher)</div><div class="ttdoc">Sets the block cipher to use for this GCM object. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8h_source.html#l00054">GCM.h:54</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html"><div class="ttname"><a href="classGHASH.html">GHASH</a></div><div class="ttdoc">Implementation of the GHASH message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8h_source.html#l00029">GHASH.h:29</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a0d3e1525d91adbbdcd5ac27793817112"><div class="ttname"><a href="classGCMCommon.html#a0d3e1525d91adbbdcd5ac27793817112">GCMCommon::~GCMCommon</a></div><div class="ttdeci">virtual ~GCMCommon()</div><div class="ttdoc">Destroys this cipher object after clearing sensitive information. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00056">GCM.cpp:56</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a2545135fe42c832e40e057b603824524"><div class="ttname"><a href="classGCMCommon.html#a2545135fe42c832e40e057b603824524">GCMCommon::setIV</a></div><div class="ttdeci">bool setIV(const uint8_t *iv, size_t len)</div><div class="ttdoc">Sets the initialization vector to use for future encryption and decryption operations. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00090">GCM.cpp:90</a></div></div>
|
||||
<div class="ttc" id="classGCMCommon_html_a134ba35e740a18bee3c45502b4149eae"><div class="ttname"><a href="classGCMCommon.html#a134ba35e740a18bee3c45502b4149eae">GCMCommon::keySize</a></div><div class="ttdeci">size_t keySize() const </div><div class="ttdoc">Default size of the key for this cipher, in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="GCM_8cpp_source.html#l00061">GCM.cpp:61</a></div></div>
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<div class="title">GHASH.cpp</div> </div>
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<div class="contents">
|
||||
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "GHASH.h"</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "Crypto.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <string.h></span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classGHASH.html#a3a1abd0f641bccd9b4aa1f40beb8dca3"> 47</a></span> <a class="code" href="classGHASH.html#a3a1abd0f641bccd9b4aa1f40beb8dca3">GHASH::GHASH</a>()</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  state.posn = 0;</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classGHASH.html#ae7f63a587adf1aa1ffcdc0a6e20584fd"> 55</a></span> <a class="code" href="classGHASH.html#ae7f63a587adf1aa1ffcdc0a6e20584fd">GHASH::~GHASH</a>()</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> }</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55"> 67</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">GHASH::reset</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *key)</div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> {</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Copy the key into H and convert from big endian to host order.</span></div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  memcpy(state.H, key, 16);</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#if defined(CRYPTO_LITTLE_ENDIAN)</span></div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"></span> state.H[0] = be32toh(state.H[0]);</div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  state.H[1] = be32toh(state.H[1]);</div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  state.H[2] = be32toh(state.H[2]);</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  state.H[3] = be32toh(state.H[3]);</div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// Reset the hash.</span></div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  memset(state.Y, 0, <span class="keyword">sizeof</span>(state.Y));</div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  state.posn = 0;</div>
|
||||
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> }</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7"> 94</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">GHASH::update</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> {</div>
|
||||
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// XOR the input with state.Y in 128-bit chunks and process them.</span></div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">const</span> uint8_t *d = (<span class="keyword">const</span> uint8_t *)data;</div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  uint8_t size = 16 - state.posn;</div>
|
||||
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> (size > len)</div>
|
||||
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  size = len;</div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  uint8_t *y = ((uint8_t *)state.Y) + state.posn;</div>
|
||||
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">for</span> (uint8_t i = 0; i < size; ++i)</div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  y[i] ^= d[i];</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  state.posn += size;</div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  len -= size;</div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  d += size;</div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (state.posn == 16) {</div>
|
||||
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  processChunk();</div>
|
||||
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  state.posn = 0;</div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
|
||||
<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307"> 130</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">GHASH::finalize</a>(<span class="keywordtype">void</span> *token, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> {</div>
|
||||
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// Pad with zeroes to a multiple of 16 bytes.</span></div>
|
||||
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</div>
|
||||
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
|
||||
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="comment">// The token is the current value of Y.</span></div>
|
||||
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  len = 16;</div>
|
||||
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  memcpy(token, state.Y, len);</div>
|
||||
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div>
|
||||
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad"> 146</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">GHASH::pad</a>()</div>
|
||||
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> {</div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (state.posn != 0) {</div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Padding involves XOR'ing the rest of state.Y with zeroes,</span></div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// which does nothing. Immediately process the next chunk.</span></div>
|
||||
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  processChunk();</div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  state.posn = 0;</div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> }</div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"><a class="line" href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e"> 159</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">GHASH::clear</a>()</div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> {</div>
|
||||
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> }</div>
|
||||
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
|
||||
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="keywordtype">void</span> GHASH::processChunk()</div>
|
||||
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> {</div>
|
||||
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  uint32_t Z0 = 0; <span class="comment">// Z = 0</span></div>
|
||||
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  uint32_t Z1 = 0;</div>
|
||||
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  uint32_t Z2 = 0;</div>
|
||||
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  uint32_t Z3 = 0;</div>
|
||||
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  uint32_t V0 = state.H[0]; <span class="comment">// V = H</span></div>
|
||||
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uint32_t V1 = state.H[1];</div>
|
||||
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  uint32_t V2 = state.H[2];</div>
|
||||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  uint32_t V3 = state.H[3];</div>
|
||||
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div>
|
||||
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// Multiply Z by V for the set bits in Y, starting at the top.</span></div>
|
||||
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// This is a very simple bit by bit version that may not be very</span></div>
|
||||
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="comment">// fast but it should be resistant to cache timing attacks.</span></div>
|
||||
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
|
||||
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  uint8_t value = ((<span class="keyword">const</span> uint8_t *)state.Y)[posn];</div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">for</span> (uint8_t bit = 0; bit < 8; ++bit, value <<= 1) {</div>
|
||||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// Extract the high bit of "value" and turn it into a mask.</span></div>
|
||||
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  uint32_t mask = (~((uint32_t)(value >> 7))) + 1;</div>
|
||||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
|
||||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// XOR V with Z if the bit is 1.</span></div>
|
||||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  Z0 ^= (V0 & mask);</div>
|
||||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  Z1 ^= (V1 & mask);</div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  Z2 ^= (V2 & mask);</div>
|
||||
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  Z3 ^= (V3 & mask);</div>
|
||||
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
|
||||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// Rotate V right by 1 bit.</span></div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  mask = ((~(V3 & 0x01)) + 1) & 0xE1000000;</div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  V3 = (V3 >> 1) | (V2 << 31);</div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  V2 = (V2 >> 1) | (V1 << 31);</div>
|
||||
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  V1 = (V1 >> 1) | (V0 << 31);</div>
|
||||
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  V0 = (V0 >> 1) ^ mask;</div>
|
||||
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div>
|
||||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
||||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// We have finished the block so copy Z into Y and byte-swap.</span></div>
|
||||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  state.Y[0] = htobe32(Z0);</div>
|
||||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  state.Y[1] = htobe32(Z1);</div>
|
||||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  state.Y[2] = htobe32(Z2);</div>
|
||||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  state.Y[3] = htobe32(Z3);</div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> }</div>
|
||||
<div class="ttc" id="classGHASH_html_ab221298ca69c9612bfbfd3dedcb28307"><div class="ttname"><a href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">GHASH::finalize</a></div><div class="ttdeci">void finalize(void *token, size_t len)</div><div class="ttdoc">Finalizes the authentication process and returns the token. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00130">GHASH.cpp:130</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a235edb14c6ed1ec55ddda595816ef1c7"><div class="ttname"><a href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">GHASH::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the message authenticator with more data. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00094">GHASH.cpp:94</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_ae7f63a587adf1aa1ffcdc0a6e20584fd"><div class="ttname"><a href="classGHASH.html#ae7f63a587adf1aa1ffcdc0a6e20584fd">GHASH::~GHASH</a></div><div class="ttdeci">~GHASH()</div><div class="ttdoc">Destroys this GHASH message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00055">GHASH.cpp:55</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a8c38ee9313605f1d8b12dca7cd43e4ad"><div class="ttname"><a href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">GHASH::pad</a></div><div class="ttdeci">void pad()</div><div class="ttdoc">Pads the input stream with zero bytes to a multiple of 16. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00146">GHASH.cpp:146</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a4b1ee789debf56f7f24807960ef0556e"><div class="ttname"><a href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">GHASH::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the authenticator's state, removing all sensitive data. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00159">GHASH.cpp:159</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a3a1abd0f641bccd9b4aa1f40beb8dca3"><div class="ttname"><a href="classGHASH.html#a3a1abd0f641bccd9b4aa1f40beb8dca3">GHASH::GHASH</a></div><div class="ttdeci">GHASH()</div><div class="ttdoc">Constructs a new GHASH message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00047">GHASH.cpp:47</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a479a3e8c37e320bf99f54b95bf5f4c55"><div class="ttname"><a href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">GHASH::reset</a></div><div class="ttdeci">void reset(const void *key)</div><div class="ttdoc">Resets the GHASH message authenticator for a new session. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00067">GHASH.cpp:67</a></div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
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||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_GHASH_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_GHASH_h</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <inttypes.h></span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <stddef.h></span></div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classGHASH.html"> 29</a></span> <span class="keyword">class </span><a class="code" href="classGHASH.html">GHASH</a></div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="classGHASH.html#a3a1abd0f641bccd9b4aa1f40beb8dca3">GHASH</a>();</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="classGHASH.html#ae7f63a587adf1aa1ffcdc0a6e20584fd">~GHASH</a>();</div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">reset</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *key);</div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">update</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">finalize</a>(<span class="keywordtype">void</span> *token, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">clear</a>();</div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">struct </span>{</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  uint32_t H[4];</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  uint32_t Y[4];</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  uint8_t posn;</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  } state;</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">void</span> processChunk();</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> };</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classGHASH_html_ab221298ca69c9612bfbfd3dedcb28307"><div class="ttname"><a href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307">GHASH::finalize</a></div><div class="ttdeci">void finalize(void *token, size_t len)</div><div class="ttdoc">Finalizes the authentication process and returns the token. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00130">GHASH.cpp:130</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a235edb14c6ed1ec55ddda595816ef1c7"><div class="ttname"><a href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7">GHASH::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the message authenticator with more data. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00094">GHASH.cpp:94</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_ae7f63a587adf1aa1ffcdc0a6e20584fd"><div class="ttname"><a href="classGHASH.html#ae7f63a587adf1aa1ffcdc0a6e20584fd">GHASH::~GHASH</a></div><div class="ttdeci">~GHASH()</div><div class="ttdoc">Destroys this GHASH message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00055">GHASH.cpp:55</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a8c38ee9313605f1d8b12dca7cd43e4ad"><div class="ttname"><a href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">GHASH::pad</a></div><div class="ttdeci">void pad()</div><div class="ttdoc">Pads the input stream with zero bytes to a multiple of 16. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00146">GHASH.cpp:146</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html"><div class="ttname"><a href="classGHASH.html">GHASH</a></div><div class="ttdoc">Implementation of the GHASH message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8h_source.html#l00029">GHASH.h:29</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a4b1ee789debf56f7f24807960ef0556e"><div class="ttname"><a href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">GHASH::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the authenticator's state, removing all sensitive data. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00159">GHASH.cpp:159</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a3a1abd0f641bccd9b4aa1f40beb8dca3"><div class="ttname"><a href="classGHASH.html#a3a1abd0f641bccd9b4aa1f40beb8dca3">GHASH::GHASH</a></div><div class="ttdeci">GHASH()</div><div class="ttdoc">Constructs a new GHASH message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00047">GHASH.cpp:47</a></div></div>
|
||||
<div class="ttc" id="classGHASH_html_a479a3e8c37e320bf99f54b95bf5f4c55"><div class="ttname"><a href="classGHASH.html#a479a3e8c37e320bf99f54b95bf5f4c55">GHASH::reset</a></div><div class="ttdeci">void reset(const void *key)</div><div class="ttdoc">Resets the GHASH message authenticator for a new session. </div><div class="ttdef"><b>Definition:</b> <a href="GHASH_8cpp_source.html#l00067">GHASH.cpp:67</a></div></div>
|
||||
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||||
</a> 1.8.6
|
||||
</small></address>
|
||||
</body>
|
||||
</html>
|
||||
@ -151,7 +151,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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||||
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</a> 1.8.6
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||||
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</a> 1.8.6
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||||
@ -115,7 +115,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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||||
@ -140,7 +140,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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||||
@ -261,7 +261,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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@ -157,7 +157,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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<div class="title">Poly1305.cpp</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "Poly1305.h"</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "Crypto.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <string.h></span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// Useful sizes for limb array and word manipulation.</span></div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#define NUM_LIMBS_128BIT (16 / sizeof(limb_t))</span></div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span><span class="preprocessor">#define NUM_LIMBS_130BIT ((16 / sizeof(limb_t)) + 1)</span></div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"></span><span class="preprocessor">#define LIMB_BITS (sizeof(limb_t) * 8)</span></div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// Endian helper macros for limbs and arrays of limbs.</span></div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#if BIGNUMBER_LIMB_8BIT</span></div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span><span class="preprocessor">#define lelimbtoh(x) (x)</span></div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"></span><span class="preprocessor">#define htolelimb(x) (x)</span></div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"></span><span class="preprocessor">#elif BIGNUMBER_LIMB_16BIT</span></div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span><span class="preprocessor">#define lelimbtoh(x) (le16toh((x)))</span></div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"></span><span class="preprocessor">#define htolelimb(x) (htole16((x)))</span></div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"></span><span class="preprocessor">#elif BIGNUMBER_LIMB_32BIT</span></div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span><span class="preprocessor">#define lelimbtoh(x) (le32toh((x)))</span></div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"></span><span class="preprocessor">#define htolelimb(x) (htole32((x)))</span></div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"></span><span class="preprocessor">#if defined(CRYPTO_LITTLE_ENDIAN)</span></div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"></span><span class="preprocessor">#define littleToHost(r,size) do { ; } while (0)</span></div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor"></span><span class="preprocessor">#define littleToHost(r,size) \</span></div>
|
||||
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"> do { \</span></div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"> for (uint8_t i = 0; i < (size); ++i) \</span></div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"> (r)[i] = lelimbtoh((r)[i]); \</span></div>
|
||||
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"> } while (0)</span></div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classPoly1305.html#a7d62e7cd2d67f1c72142580036066fa2"> 90</a></span> <a class="code" href="classPoly1305.html#a7d62e7cd2d67f1c72142580036066fa2">Poly1305::Poly1305</a>()</div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> {</div>
|
||||
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  state.chunkSize = 0;</div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="classPoly1305.html#ac021b5ebbc123fa4c0ee36330472c25d"> 99</a></span> <a class="code" href="classPoly1305.html#ac021b5ebbc123fa4c0ee36330472c25d">Poly1305::~Poly1305</a>()</div>
|
||||
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> {</div>
|
||||
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
|
||||
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8"> 111</a></span> <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8">Poly1305::reset</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *key)</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> {</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// Copy the key into place and clear the bits we don't need.</span></div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  uint8_t *r = (uint8_t *)state.r;</div>
|
||||
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  memcpy(r, key, 16);</div>
|
||||
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  r[3] &= 0x0F;</div>
|
||||
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  r[4] &= 0xFC;</div>
|
||||
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  r[7] &= 0x0F;</div>
|
||||
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  r[8] &= 0xFC;</div>
|
||||
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  r[11] &= 0x0F;</div>
|
||||
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  r[12] &= 0xFC;</div>
|
||||
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  r[15] &= 0x0F;</div>
|
||||
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
|
||||
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// Convert into little-endian if necessary.</span></div>
|
||||
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  littleToHost(state.r, NUM_LIMBS_128BIT);</div>
|
||||
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// Reset the hashing process.</span></div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  state.chunkSize = 0;</div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  memset(state.h, 0, <span class="keyword">sizeof</span>(state.h));</div>
|
||||
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div>
|
||||
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c"> 143</a></span> <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">Poly1305::update</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> {</div>
|
||||
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// Break the input up into 128-bit chunks and process each in turn.</span></div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">const</span> uint8_t *d = (<span class="keyword">const</span> uint8_t *)data;</div>
|
||||
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  uint8_t size = 16 - state.chunkSize;</div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (size > len)</div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  size = len;</div>
|
||||
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  memcpy(((uint8_t *)state.c) + state.chunkSize, d, size);</div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  state.chunkSize += size;</div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  len -= size;</div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  d += size;</div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (state.chunkSize == 16) {</div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  littleToHost(state.c, NUM_LIMBS_128BIT);</div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  state.c[NUM_LIMBS_128BIT] = 1;</div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  processChunk();</div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  state.chunkSize = 0;</div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div>
|
||||
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
|
||||
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> }</div>
|
||||
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c"> 180</a></span> <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c">Poly1305::finalize</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *nonce, <span class="keywordtype">void</span> *token, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> {</div>
|
||||
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  dlimb_t carry;</div>
|
||||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  uint8_t i;</div>
|
||||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
|
||||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// Pad and flush the final chunk.</span></div>
|
||||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span> (state.chunkSize > 0) {</div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  uint8_t *c = (uint8_t *)state.c;</div>
|
||||
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  c[state.chunkSize] = 1;</div>
|
||||
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  memset(c + state.chunkSize + 1, 0, 16 - state.chunkSize - 1);</div>
|
||||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  littleToHost(state.c, NUM_LIMBS_128BIT);</div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  state.c[NUM_LIMBS_128BIT] = 0;</div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  processChunk();</div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div>
|
||||
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
|
||||
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// At this point, processChunk() has left h as a partially reduced</span></div>
|
||||
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// result that is less than (2^130 - 5) * 6. Perform one more</span></div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">// reduction and a trial subtraction to produce the final result.</span></div>
|
||||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
||||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// Multiply the high bits of h by 5 and add them to the 130 low bits.</span></div>
|
||||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  carry = (dlimb_t)((state.h[NUM_LIMBS_128BIT] >> 2) +</div>
|
||||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  (state.h[NUM_LIMBS_128BIT] & ~((limb_t)3)));</div>
|
||||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  state.h[NUM_LIMBS_128BIT] &= 0x0003;</div>
|
||||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_128BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  carry += state.h[i];</div>
|
||||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  state.h[i] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div>
|
||||
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  state.h[i] += (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
|
||||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// Subtract (2^130 - 5) from h by computing t = h + 5 - 2^130.</span></div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// The "minus 2^130" step is implicit.</span></div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  carry = 5;</div>
|
||||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_130BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  carry += state.h[i];</div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  state.t[i] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
|
||||
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
|
||||
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">// Borrow occurs if bit 2^130 of the previous t result is zero.</span></div>
|
||||
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">// Carefully turn this into a selection mask so we can select either</span></div>
|
||||
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="comment">// h or t as the final result. We don't care about the highest word</span></div>
|
||||
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="comment">// of the result because we are about to drop it in the next step.</span></div>
|
||||
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="comment">// We have to do it this way to avoid giving away any information</span></div>
|
||||
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">// about the value of h in the instruction timing.</span></div>
|
||||
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  limb_t mask = (~((state.t[NUM_LIMBS_128BIT] >> 2) & 1)) + 1;</div>
|
||||
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  limb_t nmask = ~mask;</div>
|
||||
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_128BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  state.h[i] = (state.h[i] & nmask) | (state.t[i] & mask);</div>
|
||||
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div>
|
||||
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
|
||||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">// Add the encrypted nonce and format the final hash.</span></div>
|
||||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  memcpy(state.c, nonce, 16);</div>
|
||||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  littleToHost(state.c, NUM_LIMBS_128BIT);</div>
|
||||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  carry = 0;</div>
|
||||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_128BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  carry += state.h[i];</div>
|
||||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  carry += state.c[i];</div>
|
||||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  state.h[i] = htolelimb((limb_t)carry);</div>
|
||||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div>
|
||||
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  len = 16;</div>
|
||||
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  memcpy(token, state.h, len);</div>
|
||||
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> }</div>
|
||||
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div>
|
||||
<div class="line"><a name="l00251"></a><span class="lineno"><a class="line" href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388"> 251</a></span> <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">Poly1305::pad</a>()</div>
|
||||
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> {</div>
|
||||
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">if</span> (state.chunkSize != 0) {</div>
|
||||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  memset(((uint8_t *)state.c) + state.chunkSize, 0, 16 - state.chunkSize);</div>
|
||||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  littleToHost(state.c, NUM_LIMBS_128BIT);</div>
|
||||
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  state.c[NUM_LIMBS_128BIT] = 1;</div>
|
||||
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  processChunk();</div>
|
||||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  state.chunkSize = 0;</div>
|
||||
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div>
|
||||
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> }</div>
|
||||
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div>
|
||||
<div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd"> 265</a></span> <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd">Poly1305::clear</a>()</div>
|
||||
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> {</div>
|
||||
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  clean(state);</div>
|
||||
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> }</div>
|
||||
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
|
||||
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="keywordtype">void</span> Poly1305::processChunk()</div>
|
||||
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> {</div>
|
||||
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// Compute h = ((h + c) * r) mod (2^130 - 5).</span></div>
|
||||
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
|
||||
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="comment">// Start with h += c. We assume that h is less than (2^130 - 5) * 6</span></div>
|
||||
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// and that c is less than 2^129, so the result will be less than 2^133.</span></div>
|
||||
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  dlimb_t carry = 0;</div>
|
||||
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  uint8_t i, j;</div>
|
||||
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_130BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  carry += state.h[i];</div>
|
||||
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  carry += state.c[i];</div>
|
||||
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  state.h[i] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div>
|
||||
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div>
|
||||
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">// Multiply h by r. We know that r is less than 2^124 because the</span></div>
|
||||
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// top 4 bits were AND-ed off by reset(). That makes h * r less</span></div>
|
||||
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// than 2^257. Which is less than the (2^130 - 6)^2 we want for</span></div>
|
||||
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// the modulo reduction step that follows.</span></div>
|
||||
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  carry = 0;</div>
|
||||
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  limb_t word = state.r[0];</div>
|
||||
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_130BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  carry += ((dlimb_t)(state.h[i])) * word;</div>
|
||||
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  state.t[i] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  }</div>
|
||||
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  state.t[NUM_LIMBS_130BIT] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">for</span> (i = 1; i < NUM_LIMBS_128BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  word = state.r[i];</div>
|
||||
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  carry = 0;</div>
|
||||
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">for</span> (j = 0; j < NUM_LIMBS_130BIT; ++j) {</div>
|
||||
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  carry += ((dlimb_t)(state.h[j])) * word;</div>
|
||||
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  carry += state.t[i + j];</div>
|
||||
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  state.t[i + j] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div>
|
||||
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  state.t[i + NUM_LIMBS_130BIT] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div>
|
||||
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
|
||||
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// Reduce h * r modulo (2^130 - 5) by multiplying the high 130 bits by 5</span></div>
|
||||
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// and adding them to the low 130 bits. See the explaination in the</span></div>
|
||||
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// comments for Curve25519::reduce() for a description of how this works.</span></div>
|
||||
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  carry = ((dlimb_t)(state.t[NUM_LIMBS_128BIT] >> 2)) +</div>
|
||||
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  (state.t[NUM_LIMBS_128BIT] & ~((limb_t)3));</div>
|
||||
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  state.t[NUM_LIMBS_128BIT] &= 0x0003;</div>
|
||||
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">for</span> (i = 0; i < NUM_LIMBS_128BIT; ++i) {</div>
|
||||
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// Shift the next word of t up by (LIMB_BITS - 2) bits and then</span></div>
|
||||
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// multiply it by 5. Breaking it down, we can add the results</span></div>
|
||||
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// of shifting up by LIMB_BITS and shifting up by (LIMB_BITS - 2).</span></div>
|
||||
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">// The main wrinkle here is that this can result in an intermediate</span></div>
|
||||
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// carry that is (LIMB_BITS * 2 + 1) bits in size which doesn't</span></div>
|
||||
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// fit within a dlimb_t variable. However, we can defer adding</span></div>
|
||||
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// (word << LIMB_BITS) until after the "carry >>= LIMB_BITS" step</span></div>
|
||||
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// because it won't affect the low bits of the carry.</span></div>
|
||||
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  word = state.t[i + NUM_LIMBS_130BIT];</div>
|
||||
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  carry += ((dlimb_t)word) << (LIMB_BITS - 2);</div>
|
||||
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  carry += state.t[i];</div>
|
||||
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  state.h[i] = (limb_t)carry;</div>
|
||||
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  carry >>= LIMB_BITS;</div>
|
||||
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  carry += word;</div>
|
||||
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div>
|
||||
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  state.h[i] = (limb_t)(carry + state.t[NUM_LIMBS_128BIT]);</div>
|
||||
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
|
||||
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// At this point, h is either the answer of reducing modulo (2^130 - 5)</span></div>
|
||||
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// or it is at most 5 subtractions away from the answer we want.</span></div>
|
||||
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">// Leave it as-is for now with h less than (2^130 - 5) * 6. It is</span></div>
|
||||
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="comment">// still within a range where the next h * r step will not overflow.</span></div>
|
||||
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> }</div>
|
||||
<div class="ttc" id="classPoly1305_html_aab3fa6c5f6fa7d9ca6c82bead38f499c"><div class="ttname"><a href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c">Poly1305::finalize</a></div><div class="ttdeci">void finalize(const void *nonce, void *token, size_t len)</div><div class="ttdoc">Finalizes the authentication process and returns the token. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00180">Poly1305.cpp:180</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_a544839403d0a19300c239708bc1e6ed8"><div class="ttname"><a href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8">Poly1305::reset</a></div><div class="ttdeci">void reset(const void *key)</div><div class="ttdoc">Resets the Poly1305 message authenticator for a new session. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00111">Poly1305.cpp:111</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ae4e0b647ff93f501bd01459b1616557c"><div class="ttname"><a href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">Poly1305::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the message authenticator with more data. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00143">Poly1305.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_aaea2f40c1f22dcc2f8f690c793fb4388"><div class="ttname"><a href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">Poly1305::pad</a></div><div class="ttdeci">void pad()</div><div class="ttdoc">Pads the input stream with zero bytes to a multiple of 16. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00251">Poly1305.cpp:251</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ac021b5ebbc123fa4c0ee36330472c25d"><div class="ttname"><a href="classPoly1305.html#ac021b5ebbc123fa4c0ee36330472c25d">Poly1305::~Poly1305</a></div><div class="ttdeci">~Poly1305()</div><div class="ttdoc">Destroys this Poly1305 message authenticator after clearing all sensitive information. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00099">Poly1305.cpp:99</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_a7d62e7cd2d67f1c72142580036066fa2"><div class="ttname"><a href="classPoly1305.html#a7d62e7cd2d67f1c72142580036066fa2">Poly1305::Poly1305</a></div><div class="ttdeci">Poly1305()</div><div class="ttdoc">Constructs a new Poly1305 message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00090">Poly1305.cpp:90</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ae3f3392b9a2bd0f3472e7e50dd7e21dd"><div class="ttname"><a href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd">Poly1305::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the authenticator's state, removing all sensitive data. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00265">Poly1305.cpp:265</a></div></div>
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<li class="navelem"><a class="el" href="dir_bc0718b08fb2015b8e59c47b2805f60c.html">libraries</a></li><li class="navelem"><a class="el" href="dir_e2ce51835550ba18edf07a8311722290.html">Crypto</a></li> </ul>
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<div class="title">Poly1305.h</div> </div>
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</div><!--header-->
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<div class="contents">
|
||||
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
|
||||
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2015 Southern Storm Software, Pty Ltd.</span></div>
|
||||
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
|
||||
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
|
||||
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
|
||||
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
|
||||
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
|
||||
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
|
||||
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
|
||||
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
|
||||
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
|
||||
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
|
||||
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
|
||||
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
|
||||
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
|
||||
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
|
||||
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
|
||||
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
|
||||
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
|
||||
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
|
||||
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef CRYPTO_POLY1305_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_POLY1305_h</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "BigNumberUtil.h"</span></div>
|
||||
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <stddef.h></span></div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classPoly1305.html"> 29</a></span> <span class="keyword">class </span><a class="code" href="classPoly1305.html">Poly1305</a></div>
|
||||
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">public</span>:</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="classPoly1305.html#a7d62e7cd2d67f1c72142580036066fa2">Poly1305</a>();</div>
|
||||
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="classPoly1305.html#ac021b5ebbc123fa4c0ee36330472c25d">~Poly1305</a>();</div>
|
||||
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8">reset</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *key);</div>
|
||||
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">update</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *data, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c">finalize</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *nonce, <span class="keywordtype">void</span> *token, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">pad</a>();</div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">void</span> <a class="code" href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd">clear</a>();</div>
|
||||
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">struct </span>{</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  limb_t h[(16 / <span class="keyword">sizeof</span>(limb_t)) + 1];</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  limb_t c[(16 / <span class="keyword">sizeof</span>(limb_t)) + 1];</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  limb_t r[(16 / <span class="keyword">sizeof</span>(limb_t))];</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  limb_t t[(32 / <span class="keyword">sizeof</span>(limb_t)) + 1];</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  uint8_t chunkSize;</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  } state;</div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">void</span> processChunk();</div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> };</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classPoly1305_html"><div class="ttname"><a href="classPoly1305.html">Poly1305</a></div><div class="ttdoc">Poly1305 message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8h_source.html#l00029">Poly1305.h:29</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_aab3fa6c5f6fa7d9ca6c82bead38f499c"><div class="ttname"><a href="classPoly1305.html#aab3fa6c5f6fa7d9ca6c82bead38f499c">Poly1305::finalize</a></div><div class="ttdeci">void finalize(const void *nonce, void *token, size_t len)</div><div class="ttdoc">Finalizes the authentication process and returns the token. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00180">Poly1305.cpp:180</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_a544839403d0a19300c239708bc1e6ed8"><div class="ttname"><a href="classPoly1305.html#a544839403d0a19300c239708bc1e6ed8">Poly1305::reset</a></div><div class="ttdeci">void reset(const void *key)</div><div class="ttdoc">Resets the Poly1305 message authenticator for a new session. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00111">Poly1305.cpp:111</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ae4e0b647ff93f501bd01459b1616557c"><div class="ttname"><a href="classPoly1305.html#ae4e0b647ff93f501bd01459b1616557c">Poly1305::update</a></div><div class="ttdeci">void update(const void *data, size_t len)</div><div class="ttdoc">Updates the message authenticator with more data. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00143">Poly1305.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_aaea2f40c1f22dcc2f8f690c793fb4388"><div class="ttname"><a href="classPoly1305.html#aaea2f40c1f22dcc2f8f690c793fb4388">Poly1305::pad</a></div><div class="ttdeci">void pad()</div><div class="ttdoc">Pads the input stream with zero bytes to a multiple of 16. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00251">Poly1305.cpp:251</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ac021b5ebbc123fa4c0ee36330472c25d"><div class="ttname"><a href="classPoly1305.html#ac021b5ebbc123fa4c0ee36330472c25d">Poly1305::~Poly1305</a></div><div class="ttdeci">~Poly1305()</div><div class="ttdoc">Destroys this Poly1305 message authenticator after clearing all sensitive information. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00099">Poly1305.cpp:99</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_a7d62e7cd2d67f1c72142580036066fa2"><div class="ttname"><a href="classPoly1305.html#a7d62e7cd2d67f1c72142580036066fa2">Poly1305::Poly1305</a></div><div class="ttdeci">Poly1305()</div><div class="ttdoc">Constructs a new Poly1305 message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00090">Poly1305.cpp:90</a></div></div>
|
||||
<div class="ttc" id="classPoly1305_html_ae3f3392b9a2bd0f3472e7e50dd7e21dd"><div class="ttname"><a href="classPoly1305.html#ae3f3392b9a2bd0f3472e7e50dd7e21dd">Poly1305::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears the authenticator's state, removing all sensitive data. </div><div class="ttdef"><b>Definition:</b> <a href="Poly1305_8cpp_source.html#l00265">Poly1305.cpp:265</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
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||||
</a> 1.8.6
|
||||
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|
||||
</body>
|
||||
</html>
|
||||
@ -155,7 +155,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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|
||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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||||
</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -158,7 +158,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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|
||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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||||
</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -435,7 +435,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</div><!-- fragment --></div><!-- contents -->
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Generated on Sun Mar 29 2015 08:30:13 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
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||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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||||
</a> 1.8.6
|
||||
</small></address>
|
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|
||||
@ -366,13 +366,13 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="ttc" id="classRNGClass_html_a8cb91e39f0c4591de5bf98b1e2880b13"><div class="ttname"><a href="classRNGClass.html#a8cb91e39f0c4591de5bf98b1e2880b13">RNGClass::loop</a></div><div class="ttdeci">void loop()</div><div class="ttdoc">Run periodic housekeeping tasks on the random number generator. </div><div class="ttdef"><b>Definition:</b> <a href="RNG_8cpp_source.html#l00493">RNG.cpp:493</a></div></div>
|
||||
<div class="ttc" id="classRNGClass_html"><div class="ttname"><a href="classRNGClass.html">RNGClass</a></div><div class="ttdoc">Pseudo random number generator suitable for cryptography. </div><div class="ttdef"><b>Definition:</b> <a href="RNG_8h_source.html#l00031">RNG.h:31</a></div></div>
|
||||
<div class="ttc" id="classRNGClass_html_ae3a013bfc73795fd26ee36e70d89f4c2"><div class="ttname"><a href="classRNGClass.html#ae3a013bfc73795fd26ee36e70d89f4c2">RNGClass::SEED_SIZE</a></div><div class="ttdeci">static const int SEED_SIZE</div><div class="ttdoc">Size of a saved random number seed in EEPROM space. </div><div class="ttdef"><b>Definition:</b> <a href="RNG_8h_source.html#l00053">RNG.h:53</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a41ac3262e52ff49dcd916d0b3b2e2038"><div class="ttname"><a href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a></div><div class="ttdeci">static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds)</div><div class="ttdoc">Executes the ChaCha hash core on an input memory block. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00230">ChaCha.cpp:230</a></div></div>
|
||||
<div class="ttc" id="classChaCha_html_a41ac3262e52ff49dcd916d0b3b2e2038"><div class="ttname"><a href="classChaCha.html#a41ac3262e52ff49dcd916d0b3b2e2038">ChaCha::hashCore</a></div><div class="ttdeci">static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds)</div><div class="ttdoc">Executes the ChaCha hash core on an input memory block. </div><div class="ttdef"><b>Definition:</b> <a href="ChaCha_8cpp_source.html#l00253">ChaCha.cpp:253</a></div></div>
|
||||
<div class="ttc" id="classRNGClass_html_ad99535ea23ae2fec55bdebb8c24def02"><div class="ttname"><a href="classRNGClass.html#ad99535ea23ae2fec55bdebb8c24def02">RNGClass::stir</a></div><div class="ttdeci">void stir(const uint8_t *data, size_t len, unsigned int credit=0)</div><div class="ttdoc">Stirs additional entropy data into the random pool. </div><div class="ttdef"><b>Definition:</b> <a href="RNG_8cpp_source.html#l00406">RNG.cpp:406</a></div></div>
|
||||
<div class="ttc" id="classRNGClass_html_a5848e87a5f2f0302c88b0377f0e3366d"><div class="ttname"><a href="classRNGClass.html#a5848e87a5f2f0302c88b0377f0e3366d">RNGClass::setAutoSaveTime</a></div><div class="ttdeci">void setAutoSaveTime(uint16_t minutes)</div><div class="ttdoc">Sets the amount of time between automatic seed saves. </div><div class="ttdef"><b>Definition:</b> <a href="RNG_8cpp_source.html#l00272">RNG.cpp:272</a></div></div>
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Generated on Wed Apr 1 2015 16:36:10 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
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||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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||||
</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -176,7 +176,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</div><!-- fragment --></div><!-- contents -->
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||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
|
||||
</small></address>
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|
||||
@ -380,7 +380,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
|
||||
</small></address>
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|
||||
@ -237,7 +237,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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||||
</a> 1.8.6
|
||||
</small></address>
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|
||||
@ -285,7 +285,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
|
||||
</small></address>
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||||
@ -145,7 +145,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
|
||||
</small></address>
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|
||||
@ -323,7 +323,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</div><!-- fragment --></div><!-- contents -->
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
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</small></address>
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|
||||
@ -160,7 +160,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</div><!-- fragment --></div><!-- contents -->
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
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||||
</small></address>
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|
||||
@ -339,7 +339,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
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||||
@ -160,7 +160,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
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</small></address>
|
||||
|
||||
@ -257,7 +257,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.6
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||||
@ -188,7 +188,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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||||
@ -355,7 +355,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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||||
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