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Update docs
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Rhys Weatherley
parent
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77f9295247
@ -175,7 +175,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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||||
Generated on Sat Jan 16 2016 09:47:01 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
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Generated on Sat Feb 13 2016 07:01:07 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
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||||
</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -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
|
||||
</small></address>
|
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|
||||
@ -149,7 +149,7 @@ 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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|
||||
@ -125,7 +125,7 @@ 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>
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|
||||
@ -148,7 +148,7 @@ 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>
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|
||||
@ -138,7 +138,7 @@ 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>
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@ -130,7 +130,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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</small></address>
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@ -812,7 +812,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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</small></address>
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@ -173,7 +173,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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</small></address>
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|
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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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<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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|
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@ -415,7 +415,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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</small></address>
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|
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@ -172,7 +172,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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</a> 1.8.6
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</small></address>
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|
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@ -657,7 +657,7 @@ 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>
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|
||||
@ -202,7 +202,7 @@ 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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|
||||
@ -575,7 +575,7 @@ 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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|
||||
@ -190,7 +190,7 @@ 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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|
||||
@ -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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</small></address>
|
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|
||||
@ -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
|
||||
</small></address>
|
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|
||||
@ -257,7 +257,7 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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Generated on Sat Jan 16 2016 09:47:01 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
|
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</small></address>
|
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|
||||
@ -115,269 +115,193 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <string.h></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
|
||||
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classEAXCommon.html#ae09c9df956bf87cde02ca36c26c32f79"> 43</a></span> <a class="code" href="classEAXCommon.html#ae09c9df956bf87cde02ca36c26c32f79">EAXCommon::EAXCommon</a>()</div>
|
||||
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  : blockCipher(0)</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>  state.encPosn = 0;</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  state.authPosn = 0;</div>
|
||||
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  state.authMode = 0;</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> </div>
|
||||
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> EAXCommon::~EAXCommon()</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>  clean(state);</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> </div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29"> 56</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">EAXCommon::keySize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> blockCipher-><a class="code" href="classBlockCipher.html#afde6004a859e015d877eab3c37042a0f">keySize</a>();</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="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf"> 61</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">EAXCommon::ivSize</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">// Can use any size but 16 is recommended.</span></div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> 16;</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"><a class="line" href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9"> 67</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">EAXCommon::tagSize</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">// Tags can be up to 16 bytes in length.</span></div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> 16;</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="classEAXCommon.html#af5be5115c119610abb351028263d28de"> 73</a></span> <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#af5be5115c119610abb351028263d28de">EAXCommon::setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len)</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>  <span class="keywordflow">return</span> blockCipher-><a class="code" href="classBlockCipher.html#a9a05307664469777592799c8f77397c4">setKey</a>(key, len);</div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> }</div>
|
||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
|
||||
<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45"> 78</a></span> <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">EAXCommon::setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len)</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="comment">// Must have at least 1 byte for the IV.</span></div>
|
||||
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">if</span> (!len)</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> <span class="keyword">false</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"> 84</span>  <span class="comment">// Hash the IV to create the initial nonce for CTR mode. Also creates B.</span></div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  omacInitFirst(state.counter);</div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  omacUpdate(state.counter, iv, len);</div>
|
||||
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  omacFinal(state.counter);</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>  <span class="comment">// The tag is initially the nonce value. Will be XOR'ed with</span></div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// the hash of the authenticated and encrypted data later.</span></div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  memcpy(state.tag, state.counter, 16);</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="comment">// Start the hashing context for the authenticated data.</span></div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  omacInit(state.hash, 1);</div>
|
||||
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  state.encPosn = 16;</div>
|
||||
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  state.authMode = 1;</div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="comment">// The EAX context is ready to go.</span></div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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> </div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099"> 102</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">EAXCommon::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="l00103"></a><span class="lineno"> 103</span> {</div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  closeAuthData();</div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  encryptCTR(output, input, len);</div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  omacUpdate(state.hash, output, len);</div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"> 108</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"><a class="line" href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2"> 110</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">EAXCommon::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="l00111"></a><span class="lineno"> 111</span> {</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  closeAuthData();</div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  omacUpdate(state.hash, input, len);</div>
|
||||
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  encryptCTR(output, input, 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> </div>
|
||||
<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8"> 118</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">EAXCommon::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="l00119"></a><span class="lineno"> 119</span> {</div>
|
||||
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  omacUpdate(state.hash, (<span class="keyword">const</span> uint8_t *)data, len);</div>
|
||||
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> }</div>
|
||||
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
|
||||
<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3"> 124</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">EAXCommon::computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</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>  closeTag();</div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  len = 16;</div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  memcpy(tag, state.tag, len);</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="l00132"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963"> 132</a></span> <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">EAXCommon::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="l00133"></a><span class="lineno"> 133</span> {</div>
|
||||
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Can never match if the expected tag length is too long.</span></div>
|
||||
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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">// Compute the final tag and check it.</span></div>
|
||||
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  closeTag();</div>
|
||||
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> secure_compare(state.tag, tag, len);</div>
|
||||
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> }</div>
|
||||
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af"> 143</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">EAXCommon::clear</a>()</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>  clean(state);</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> </div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment">// Doubles a 128-bit value in the GF(2^128) field.</span></div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="keyword">static</span> <span class="keywordtype">void</span> gfDouble(uint8_t value[16])</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>  uint16_t temp = 0;</div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">for</span> (uint8_t index = 16; index > 0; ) {</div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  --index;</div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  temp |= (((uint16_t)(value[index])) << 1);</div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  value[index] = (uint8_t)temp;</div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  temp >>= 8;</div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  value[15] ^= (uint8_t)((-temp) & 0x87);</div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> }</div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
|
||||
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">void</span> EAXCommon::omacInitFirst(uint8_t omac[16])</div>
|
||||
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> {</div>
|
||||
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// Start the OMAC context for the nonce. We assume that the</span></div>
|
||||
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// data that follows will be at least 1 byte in length so that</span></div>
|
||||
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// we can encrypt the zeroes now to derive the B value.</span></div>
|
||||
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  memset(omac, 0, 16);</div>
|
||||
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(omac, omac);</div>
|
||||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  state.authPosn = 0;</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">// Generate the B value from the encrypted block of zeroes.</span></div>
|
||||
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// We will need this later when finalising the OMAC hashes.</span></div>
|
||||
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  memcpy(state.b, omac, 16);</div>
|
||||
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  gfDouble(state.b);</div>
|
||||
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> }</div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keywordtype">void</span> EAXCommon::omacInit(uint8_t omac[16], uint8_t t)</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>  memset(omac, 0, 15);</div>
|
||||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  omac[15] = t;</div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  state.authPosn = 16;</div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</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>  state.encPosn = 0;</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  state.authMode = 0;</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> </div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> EAXCommon::~EAXCommon()</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>  clean(state);</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> </div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29"> 54</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">EAXCommon::keySize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> omac.<a class="code" href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a">blockCipher</a>()-><a class="code" href="classBlockCipher.html#afde6004a859e015d877eab3c37042a0f">keySize</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> </div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf"> 59</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">EAXCommon::ivSize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// Can use any size but 16 is recommended.</span></div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> 16;</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"><a class="line" href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9"> 65</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">EAXCommon::tagSize</a>()<span class="keyword"> const</span></div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword"></span>{</div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// Tags can be up to 16 bytes in length.</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="classEAXCommon.html#af5be5115c119610abb351028263d28de"> 71</a></span> <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#af5be5115c119610abb351028263d28de">EAXCommon::setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len)</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="keywordflow">return</span> omac.<a class="code" href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a">blockCipher</a>()-><a class="code" href="classBlockCipher.html#a9a05307664469777592799c8f77397c4">setKey</a>(key, len);</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"><a class="line" href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45"> 76</a></span> <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">EAXCommon::setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</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="comment">// Must have at least 1 byte for the IV.</span></div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">if</span> (!len)</div>
|
||||
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  <span class="comment">// Hash the IV to create the initial nonce for CTR mode. Also creates B.</span></div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  omac.<a class="code" href="classOMAC.html#a0274138725ddf6240c030574bae3975c">initFirst</a>(state.counter);</div>
|
||||
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  omac.<a class="code" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">update</a>(state.counter, iv, len);</div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  omac.<a class="code" href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">finalize</a>(state.counter);</div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
|
||||
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// The tag is initially the nonce value. Will be XOR'ed with</span></div>
|
||||
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// the hash of the authenticated and encrypted data later.</span></div>
|
||||
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  memcpy(state.tag, state.counter, 16);</div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Start the hashing context for the authenticated data.</span></div>
|
||||
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  omac.<a class="code" href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">initNext</a>(state.hash, 1);</div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  state.encPosn = 16;</div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  state.authMode = 1;</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">// The EAX context is ready to go.</span></div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
|
||||
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099"> 100</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">EAXCommon::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="l00101"></a><span class="lineno"> 101</span> {</div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  closeAuthData();</div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  encryptCTR(output, input, len);</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  omac.<a class="code" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">update</a>(state.hash, output, len);</div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2"> 108</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">EAXCommon::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="l00109"></a><span class="lineno"> 109</span> {</div>
|
||||
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  closeAuthData();</div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  omac.<a class="code" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">update</a>(state.hash, input, len);</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  encryptCTR(output, input, len);</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> </div>
|
||||
<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8"> 116</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">EAXCommon::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="l00117"></a><span class="lineno"> 117</span> {</div>
|
||||
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  omac.<a class="code" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">update</a>(state.hash, (<span class="keyword">const</span> uint8_t *)data, len);</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> </div>
|
||||
<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3"> 122</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">EAXCommon::computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len)</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>  closeTag();</div>
|
||||
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  len = 16;</div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  memcpy(tag, state.tag, len);</div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
|
||||
<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963"> 130</a></span> <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">EAXCommon::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="l00131"></a><span class="lineno"> 131</span> {</div>
|
||||
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">// Can never match if the expected tag length is too long.</span></div>
|
||||
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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>  <span class="comment">// Compute the final tag and check it.</span></div>
|
||||
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  closeTag();</div>
|
||||
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">return</span> secure_compare(state.tag, tag, 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="l00141"></a><span class="lineno"><a class="line" href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af"> 141</a></span> <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">EAXCommon::clear</a>()</div>
|
||||
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> {</div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  clean(state);</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> </div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keywordtype">void</span> EAXCommon::closeAuthData()</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>  <span class="comment">// Finalise the OMAC hash and XOR it with the final tag.</span></div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  omac.<a class="code" href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">finalize</a>(state.hash);</div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  state.tag[index] ^= state.hash[index];</div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  state.authMode = 0;</div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// Initialise the hashing context for the ciphertext data.</span></div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  omac.<a class="code" href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">initNext</a>(state.hash, 2);</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="l00171"></a><span class="lineno"> 171</span> <span class="keywordtype">void</span> EAXCommon::encryptCTR(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</div>
|
||||
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> {</div>
|
||||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Do we need to start a new block?</span></div>
|
||||
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">if</span> (state.encPosn == 16) {</div>
|
||||
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// Encrypt the counter to create the next keystream block.</span></div>
|
||||
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  omac.<a class="code" href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a">blockCipher</a>()-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(state.stream, state.counter);</div>
|
||||
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  state.encPosn = 0;</div>
|
||||
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// Increment the counter, taking care not to reveal</span></div>
|
||||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// any timing information about the starting value.</span></div>
|
||||
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// We iterate through the entire counter region even</span></div>
|
||||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// if we could stop earlier because a byte is non-zero.</span></div>
|
||||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  uint16_t temp = 1;</div>
|
||||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  uint8_t index = 16;</div>
|
||||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">while</span> (index > 0) {</div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  --index;</div>
|
||||
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  temp += state.counter[index];</div>
|
||||
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  state.counter[index] = (uint8_t)temp;</div>
|
||||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  temp >>= 8;</div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
|
||||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="keywordtype">void</span> EAXCommon::omacUpdate(uint8_t omac[16], <span class="keyword">const</span> uint8_t *data, <span class="keywordtype">size_t</span> len)</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="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">// Encrypt the current block if it is already full.</span></div>
|
||||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (state.authPosn == 16) {</div>
|
||||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(omac, omac);</div>
|
||||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  state.authPosn = 0;</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> </div>
|
||||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// XOR the incoming data with the current block.</span></div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  uint8_t size = 16 - state.authPosn;</div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (size > len)</div>
|
||||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  size = (uint8_t)len;</div>
|
||||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < size; ++index)</div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  omac[(state.authPosn)++] ^= data[index];</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>  <span class="comment">// Move onto the next block.</span></div>
|
||||
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  len -= size;</div>
|
||||
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  data += size;</div>
|
||||
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div>
|
||||
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> }</div>
|
||||
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
|
||||
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="keywordtype">void</span> EAXCommon::omacFinal(uint8_t omac[16])</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>  <span class="comment">// Apply padding if necessary.</span></div>
|
||||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span> (state.authPosn != 16) {</div>
|
||||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// Need padding: XOR with P = 2 * B.</span></div>
|
||||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  uint8_t p[16];</div>
|
||||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  memcpy(p, state.b, 16);</div>
|
||||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  gfDouble(p);</div>
|
||||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  omac[state.authPosn] ^= 0x80;</div>
|
||||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  omac[index] ^= p[index];</div>
|
||||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  clean(p);</div>
|
||||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  } <span class="keywordflow">else</span> {</div>
|
||||
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">// No padding necessary: XOR with B.</span></div>
|
||||
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  omac[index] ^= state.b[index];</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="l00246"></a><span class="lineno"> 246</span>  <span class="comment">// Encrypt the hash to get the final OMAC value.</span></div>
|
||||
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(omac, omac);</div>
|
||||
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</div>
|
||||
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
|
||||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="keywordtype">void</span> EAXCommon::closeAuthData()</div>
|
||||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> {</div>
|
||||
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="comment">// Finalise the OMAC hash and XOR it with the final tag.</span></div>
|
||||
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  omacFinal(state.hash);</div>
|
||||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  state.tag[index] ^= state.hash[index];</div>
|
||||
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  state.authMode = 0;</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">// Initialise the hashing context for the ciphertext data.</span></div>
|
||||
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  omacInit(state.hash, 2);</div>
|
||||
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> }</div>
|
||||
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
|
||||
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="keywordtype">void</span> EAXCommon::encryptCTR(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len)</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="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// Do we need to start a new block?</span></div>
|
||||
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">if</span> (state.encPosn == 16) {</div>
|
||||
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// Encrypt the counter to create the next keystream block.</span></div>
|
||||
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(state.stream, state.counter);</div>
|
||||
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  state.encPosn = 0;</div>
|
||||
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div>
|
||||
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// Increment the counter, taking care not to reveal</span></div>
|
||||
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">// any timing information about the starting value.</span></div>
|
||||
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// We iterate through the entire counter region even</span></div>
|
||||
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// if we could stop earlier because a byte is non-zero.</span></div>
|
||||
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  uint16_t temp = 1;</div>
|
||||
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  uint8_t index = 16;</div>
|
||||
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">while</span> (index > 0) {</div>
|
||||
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  --index;</div>
|
||||
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  temp += state.counter[index];</div>
|
||||
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  state.counter[index] = (uint8_t)temp;</div>
|
||||
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  temp >>= 8;</div>
|
||||
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div>
|
||||
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  }</div>
|
||||
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div>
|
||||
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// Encrypt/decrypt the current input block.</span></div>
|
||||
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  uint8_t size = 16 - state.encPosn;</div>
|
||||
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">if</span> (size > len)</div>
|
||||
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  size = (uint8_t)len;</div>
|
||||
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < size; ++index)</div>
|
||||
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  output[index] = input[index] ^ state.stream[(state.encPosn)++];</div>
|
||||
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div>
|
||||
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="comment">// Move onto the next block.</span></div>
|
||||
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  len -= size;</div>
|
||||
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  input += size;</div>
|
||||
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  output += size;</div>
|
||||
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</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="keywordtype">void</span> EAXCommon::closeTag()</div>
|
||||
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> {</div>
|
||||
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// If we were only authenticating, then close off auth mode.</span></div>
|
||||
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  closeAuthData();</div>
|
||||
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
|
||||
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// Finalise the hash over the ciphertext and XOR with the final tag.</span></div>
|
||||
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  omacFinal(state.hash);</div>
|
||||
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  state.tag[index] ^= state.hash[index];</div>
|
||||
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> }</div>
|
||||
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div>
|
||||
<div class="ttc" id="classEAXCommon_html_a33a5da1f210f01c3622fbf27208f3d45"><div class="ttname"><a href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">EAXCommon::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="EAX_8cpp_source.html#l00078">EAX.cpp:78</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a63ce8ae45db137ec9d447216b84245c2"><div class="ttname"><a href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">EAXCommon::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="EAX_8cpp_source.html#l00110">EAX.cpp:110</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a8804341b21f752a5b8178a3bdb123fd9"><div class="ttname"><a href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">EAXCommon::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="EAX_8cpp_source.html#l00067">EAX.cpp:67</a></div></div>
|
||||
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="comment">// Encrypt/decrypt the current input block.</span></div>
|
||||
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  uint8_t size = 16 - state.encPosn;</div>
|
||||
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (size > len)</div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  size = (uint8_t)len;</div>
|
||||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < size; ++index)</div>
|
||||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  output[index] = input[index] ^ state.stream[(state.encPosn)++];</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>  <span class="comment">// Move onto the next block.</span></div>
|
||||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  len -= size;</div>
|
||||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  input += size;</div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  output += size;</div>
|
||||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div>
|
||||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> }</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> <span class="keywordtype">void</span> EAXCommon::closeTag()</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">// If we were only authenticating, then close off auth mode.</span></div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (state.authMode)</div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  closeAuthData();</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>  <span class="comment">// Finalise the hash over the ciphertext and XOR with the final tag.</span></div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  omac.<a class="code" href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">finalize</a>(state.hash);</div>
|
||||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  state.tag[index] ^= state.hash[index];</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> </div>
|
||||
<div class="ttc" id="classOMAC_html_ae4ccdaee764df779f7ae0c7433078b3e"><div class="ttname"><a href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">OMAC::finalize</a></div><div class="ttdeci">void finalize(uint8_t omac[16])</div><div class="ttdoc">Finalises an OMAC hashing context. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00172">OMAC.cpp:172</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a33a5da1f210f01c3622fbf27208f3d45"><div class="ttname"><a href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">EAXCommon::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="EAX_8cpp_source.html#l00076">EAX.cpp:76</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a63ce8ae45db137ec9d447216b84245c2"><div class="ttname"><a href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">EAXCommon::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="EAX_8cpp_source.html#l00108">EAX.cpp:108</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a8804341b21f752a5b8178a3bdb123fd9"><div class="ttname"><a href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">EAXCommon::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="EAX_8cpp_source.html#l00065">EAX.cpp:65</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_ae09c9df956bf87cde02ca36c26c32f79"><div class="ttname"><a href="classEAXCommon.html#ae09c9df956bf87cde02ca36c26c32f79">EAXCommon::EAXCommon</a></div><div class="ttdeci">EAXCommon()</div><div class="ttdoc">Constructs a new cipher in EAX mode. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8cpp_source.html#l00043">EAX.cpp:43</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a72c403f52cefab57566bc5f634c1b963"><div class="ttname"><a href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">EAXCommon::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="EAX_8cpp_source.html#l00132">EAX.cpp:132</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a72c403f52cefab57566bc5f634c1b963"><div class="ttname"><a href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">EAXCommon::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="EAX_8cpp_source.html#l00130">EAX.cpp:130</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="classEAXCommon_html_aad2c563f749535f539b8efbd74b09099"><div class="ttname"><a href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">EAXCommon::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="EAX_8cpp_source.html#l00102">EAX.cpp:102</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_afa88b0f589e09103e9c69ace081db0af"><div class="ttname"><a href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">EAXCommon::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="EAX_8cpp_source.html#l00143">EAX.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_af5be5115c119610abb351028263d28de"><div class="ttname"><a href="classEAXCommon.html#af5be5115c119610abb351028263d28de">EAXCommon::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="EAX_8cpp_source.html#l00073">EAX.cpp:73</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_ab5a61bba48561d6e7e6b8bafc51d91e3"><div class="ttname"><a href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">EAXCommon::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="EAX_8cpp_source.html#l00124">EAX.cpp:124</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_ad496c7d2de4f22fd4192345003e75ee5"><div class="ttname"><a href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">OMAC::initNext</a></div><div class="ttdeci">void initNext(uint8_t omac[16], uint8_t tag)</div><div class="ttdoc">Initialises or restarts an OMAC hashing context. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00127">OMAC.cpp:127</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_a6692d7f37dd097fdfdd2b198aa0d9cde"><div class="ttname"><a href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">OMAC::update</a></div><div class="ttdeci">void update(uint8_t omac[16], const uint8_t *data, size_t size)</div><div class="ttdoc">Updates an OMAC hashing context with more data. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00143">OMAC.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_aad2c563f749535f539b8efbd74b09099"><div class="ttname"><a href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">EAXCommon::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="EAX_8cpp_source.html#l00100">EAX.cpp:100</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_afa88b0f589e09103e9c69ace081db0af"><div class="ttname"><a href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">EAXCommon::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="EAX_8cpp_source.html#l00141">EAX.cpp:141</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_af5be5115c119610abb351028263d28de"><div class="ttname"><a href="classEAXCommon.html#af5be5115c119610abb351028263d28de">EAXCommon::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="EAX_8cpp_source.html#l00071">EAX.cpp:71</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_ab5a61bba48561d6e7e6b8bafc51d91e3"><div class="ttname"><a href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">EAXCommon::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="EAX_8cpp_source.html#l00122">EAX.cpp:122</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="classEAXCommon_html_abc6ccfb9338c94699458723f669513bf"><div class="ttname"><a href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">EAXCommon::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="EAX_8cpp_source.html#l00061">EAX.cpp:61</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_acdf2c51fb11c068202311b5c95767db8"><div class="ttname"><a href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">EAXCommon::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="EAX_8cpp_source.html#l00118">EAX.cpp:118</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a027956913eecfa0bc760f20f3b62df29"><div class="ttname"><a href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">EAXCommon::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="EAX_8cpp_source.html#l00056">EAX.cpp:56</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_abc6ccfb9338c94699458723f669513bf"><div class="ttname"><a href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">EAXCommon::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="EAX_8cpp_source.html#l00059">EAX.cpp:59</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_acdf2c51fb11c068202311b5c95767db8"><div class="ttname"><a href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">EAXCommon::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="EAX_8cpp_source.html#l00116">EAX.cpp:116</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a027956913eecfa0bc760f20f3b62df29"><div class="ttname"><a href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">EAXCommon::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="EAX_8cpp_source.html#l00054">EAX.cpp:54</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_abca82def496c6c6ab1ce5e5a958ec34a"><div class="ttname"><a href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a">OMAC::blockCipher</a></div><div class="ttdeci">BlockCipher * blockCipher() const </div><div class="ttdoc">Gets the block cipher that is in use for this OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8h_source.html#l00034">OMAC.h:34</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="classOMAC_html_a0274138725ddf6240c030574bae3975c"><div class="ttname"><a href="classOMAC.html#a0274138725ddf6240c030574bae3975c">OMAC::initFirst</a></div><div class="ttdeci">void initFirst(uint8_t omac[16])</div><div class="ttdoc">Initialises the first OMAC hashing context and creates the B value. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00101">OMAC.cpp:101</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
|
||||
<!-- start footer part -->
|
||||
<hr class="footer"/><address class="footer"><small>
|
||||
Generated on Sat Jan 16 2016 09:47:01 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
||||
Generated on Sat Feb 13 2016 07:01:07 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
||||
</a> 1.8.6
|
||||
</small></address>
|
||||
|
||||
@ -115,89 +115,88 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<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> </div>
|
||||
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classEAXCommon.html"> 29</a></span> <span class="keyword">class </span><a class="code" href="classEAXCommon.html">EAXCommon</a> : <span class="keyword">public</span> <a class="code" href="classAuthenticatedCipher.html">AuthenticatedCipher</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">virtual</span> ~<a class="code" href="classEAXCommon.html">EAXCommon</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="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">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="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">ivSize</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="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">tagSize</a>() <span class="keyword">const</span>;</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="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#af5be5115c119610abb351028263d28de">setKey</a>(<span class="keyword">const</span> uint8_t *key, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">setIV</a>(<span class="keyword">const</span> uint8_t *iv, <span class="keywordtype">size_t</span> len);</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="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">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="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">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="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="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">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="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="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">computeTag</a>(<span class="keywordtype">void</span> *tag, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">bool</span> <a class="code" href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">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="l00048"></a><span class="lineno"> 48</span> </div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">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">protected</span>:</div>
|
||||
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="classEAXCommon.html#ae09c9df956bf87cde02ca36c26c32f79">EAXCommon</a>();</div>
|
||||
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca"> 53</a></span>  <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca">setBlockCipher</a>(<a class="code" href="classBlockCipher.html">BlockCipher</a> *cipher) { blockCipher = cipher; }</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">private</span>:</div>
|
||||
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="classBlockCipher.html">BlockCipher</a> *blockCipher;</div>
|
||||
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">struct </span>{</div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  uint8_t counter[16];</div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  uint8_t stream[16];</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  uint8_t tag[16];</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  uint8_t hash[16];</div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  uint8_t b[16];</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  uint8_t encPosn;</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uint8_t authPosn;</div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  uint8_t authMode;</div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  } state;</div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">void</span> omacInitFirst(uint8_t omac[16]);</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">void</span> omacInit(uint8_t omac[16], uint8_t t);</div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">void</span> omacUpdate(uint8_t omac[16], <span class="keyword">const</span> uint8_t *data, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">void</span> omacFinal(uint8_t omac[16]);</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="keywordtype">void</span> closeAuthData();</div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">void</span> encryptCTR(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">void</span> closeTag();</div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> };</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">template</span> <<span class="keyword">typename</span> T></div>
|
||||
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classEAX.html"> 79</a></span> <span class="keyword">class </span><a class="code" href="classEAX.html">EAX</a> : <span class="keyword">public</span> <a class="code" href="classEAXCommon.html">EAXCommon</a></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">public</span>:</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classEAX.html#a7a1f89270e885a1ca245ca978b66e09b"> 82</a></span>  <a class="code" href="classEAX.html#a7a1f89270e885a1ca245ca978b66e09b">EAX</a>() { <a class="code" href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca">setBlockCipher</a>(&cipher); }</div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
|
||||
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  T cipher;</div>
|
||||
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> };</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="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a33a5da1f210f01c3622fbf27208f3d45"><div class="ttname"><a href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">EAXCommon::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="EAX_8cpp_source.html#l00078">EAX.cpp:78</a></div></div>
|
||||
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "OMAC.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="classEAXCommon.html"> 30</a></span> <span class="keyword">class </span><a class="code" href="classEAXCommon.html">EAXCommon</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="classEAXCommon.html">EAXCommon</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="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">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="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">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="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">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="classEAXCommon.html#af5be5115c119610abb351028263d28de">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="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">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="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">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="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">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="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">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="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">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="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">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="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">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="classEAXCommon.html#ae09c9df956bf87cde02ca36c26c32f79">EAXCommon</a>();</div>
|
||||
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca"> 54</a></span>  <span class="keywordtype">void</span> <a class="code" href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca">setBlockCipher</a>(<a class="code" href="classBlockCipher.html">BlockCipher</a> *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>  omac.<a class="code" href="classOMAC.html#a8ae86bc629cca60cebb995d092ba06b4">setBlockCipher</a>(cipher);</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> </div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">private</span>:</div>
|
||||
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">struct </span>{</div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  uint8_t counter[16];</div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  uint8_t stream[16];</div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  uint8_t tag[16];</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uint8_t hash[16];</div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  uint8_t encPosn;</div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  uint8_t authMode;</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>  <a class="code" href="classOMAC.html">OMAC</a> omac;</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="keywordtype">void</span> closeAuthData();</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">void</span> encryptCTR(uint8_t *output, <span class="keyword">const</span> uint8_t *input, <span class="keywordtype">size_t</span> len);</div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">void</span> closeTag();</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> };</div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
||||
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="classEAX.html"> 76</a></span> <span class="keyword">class </span><a class="code" href="classEAX.html">EAX</a> : <span class="keyword">public</span> <a class="code" href="classEAXCommon.html">EAXCommon</a></div>
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||||
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> {</div>
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||||
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classEAX.html#a7a1f89270e885a1ca245ca978b66e09b"> 79</a></span>  <a class="code" href="classEAX.html#a7a1f89270e885a1ca245ca978b66e09b">EAX</a>() { <a class="code" href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca">setBlockCipher</a>(&cipher); }</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">private</span>:</div>
|
||||
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  T cipher;</div>
|
||||
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> };</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="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classOMAC_html"><div class="ttname"><a href="classOMAC.html">OMAC</a></div><div class="ttdoc">Implementation of the OMAC message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8h_source.html#l00028">OMAC.h:28</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a33a5da1f210f01c3622fbf27208f3d45"><div class="ttname"><a href="classEAXCommon.html#a33a5da1f210f01c3622fbf27208f3d45">EAXCommon::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="EAX_8cpp_source.html#l00076">EAX.cpp:76</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="classEAXCommon_html_a63ce8ae45db137ec9d447216b84245c2"><div class="ttname"><a href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">EAXCommon::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="EAX_8cpp_source.html#l00110">EAX.cpp:110</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a63ce8ae45db137ec9d447216b84245c2"><div class="ttname"><a href="classEAXCommon.html#a63ce8ae45db137ec9d447216b84245c2">EAXCommon::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="EAX_8cpp_source.html#l00108">EAX.cpp:108</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="classEAXCommon_html_a8804341b21f752a5b8178a3bdb123fd9"><div class="ttname"><a href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">EAXCommon::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="EAX_8cpp_source.html#l00067">EAX.cpp:67</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a8804341b21f752a5b8178a3bdb123fd9"><div class="ttname"><a href="classEAXCommon.html#a8804341b21f752a5b8178a3bdb123fd9">EAXCommon::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="EAX_8cpp_source.html#l00065">EAX.cpp:65</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_ae09c9df956bf87cde02ca36c26c32f79"><div class="ttname"><a href="classEAXCommon.html#ae09c9df956bf87cde02ca36c26c32f79">EAXCommon::EAXCommon</a></div><div class="ttdeci">EAXCommon()</div><div class="ttdoc">Constructs a new cipher in EAX mode. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8cpp_source.html#l00043">EAX.cpp:43</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a72c403f52cefab57566bc5f634c1b963"><div class="ttname"><a href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">EAXCommon::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="EAX_8cpp_source.html#l00132">EAX.cpp:132</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html"><div class="ttname"><a href="classEAXCommon.html">EAXCommon</a></div><div class="ttdoc">Concrete base class to assist with implementing EAX for 128-bit block ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00029">EAX.h:29</a></div></div>
|
||||
<div class="ttc" id="classEAX_html_a7a1f89270e885a1ca245ca978b66e09b"><div class="ttname"><a href="classEAX.html#a7a1f89270e885a1ca245ca978b66e09b">EAX::EAX</a></div><div class="ttdeci">EAX()</div><div class="ttdoc">Constructs a new EAX object for the block cipher T. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00082">EAX.h:82</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_aad2c563f749535f539b8efbd74b09099"><div class="ttname"><a href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">EAXCommon::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="EAX_8cpp_source.html#l00102">EAX.cpp:102</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_afa88b0f589e09103e9c69ace081db0af"><div class="ttname"><a href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">EAXCommon::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="EAX_8cpp_source.html#l00143">EAX.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_af5be5115c119610abb351028263d28de"><div class="ttname"><a href="classEAXCommon.html#af5be5115c119610abb351028263d28de">EAXCommon::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="EAX_8cpp_source.html#l00073">EAX.cpp:73</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_ab5a61bba48561d6e7e6b8bafc51d91e3"><div class="ttname"><a href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">EAXCommon::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="EAX_8cpp_source.html#l00124">EAX.cpp:124</a></div></div>
|
||||
<div class="ttc" id="classEAX_html"><div class="ttname"><a href="classEAX.html">EAX</a></div><div class="ttdoc">Implementation of the EAX authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00079">EAX.h:79</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a7db44040163b33f818cfaf47185251ca"><div class="ttname"><a href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca">EAXCommon::setBlockCipher</a></div><div class="ttdeci">void setBlockCipher(BlockCipher *cipher)</div><div class="ttdoc">Sets the block cipher to use for this EAX object. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00053">EAX.h:53</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_abc6ccfb9338c94699458723f669513bf"><div class="ttname"><a href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">EAXCommon::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="EAX_8cpp_source.html#l00061">EAX.cpp:61</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_acdf2c51fb11c068202311b5c95767db8"><div class="ttname"><a href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">EAXCommon::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="EAX_8cpp_source.html#l00118">EAX.cpp:118</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a027956913eecfa0bc760f20f3b62df29"><div class="ttname"><a href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">EAXCommon::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="EAX_8cpp_source.html#l00056">EAX.cpp:56</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_a8ae86bc629cca60cebb995d092ba06b4"><div class="ttname"><a href="classOMAC.html#a8ae86bc629cca60cebb995d092ba06b4">OMAC::setBlockCipher</a></div><div class="ttdeci">void setBlockCipher(BlockCipher *cipher)</div><div class="ttdoc">Sets the block cipher to use for this OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8h_source.html#l00035">OMAC.h:35</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a72c403f52cefab57566bc5f634c1b963"><div class="ttname"><a href="classEAXCommon.html#a72c403f52cefab57566bc5f634c1b963">EAXCommon::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="EAX_8cpp_source.html#l00130">EAX.cpp:130</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html"><div class="ttname"><a href="classEAXCommon.html">EAXCommon</a></div><div class="ttdoc">Concrete base class to assist with implementing EAX for 128-bit block ciphers. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00030">EAX.h:30</a></div></div>
|
||||
<div class="ttc" id="classEAX_html_a7a1f89270e885a1ca245ca978b66e09b"><div class="ttname"><a href="classEAX.html#a7a1f89270e885a1ca245ca978b66e09b">EAX::EAX</a></div><div class="ttdeci">EAX()</div><div class="ttdoc">Constructs a new EAX object for the block cipher T. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00079">EAX.h:79</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_aad2c563f749535f539b8efbd74b09099"><div class="ttname"><a href="classEAXCommon.html#aad2c563f749535f539b8efbd74b09099">EAXCommon::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="EAX_8cpp_source.html#l00100">EAX.cpp:100</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_afa88b0f589e09103e9c69ace081db0af"><div class="ttname"><a href="classEAXCommon.html#afa88b0f589e09103e9c69ace081db0af">EAXCommon::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="EAX_8cpp_source.html#l00141">EAX.cpp:141</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_af5be5115c119610abb351028263d28de"><div class="ttname"><a href="classEAXCommon.html#af5be5115c119610abb351028263d28de">EAXCommon::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="EAX_8cpp_source.html#l00071">EAX.cpp:71</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_ab5a61bba48561d6e7e6b8bafc51d91e3"><div class="ttname"><a href="classEAXCommon.html#ab5a61bba48561d6e7e6b8bafc51d91e3">EAXCommon::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="EAX_8cpp_source.html#l00122">EAX.cpp:122</a></div></div>
|
||||
<div class="ttc" id="classEAX_html"><div class="ttname"><a href="classEAX.html">EAX</a></div><div class="ttdoc">Implementation of the EAX authenticated cipher. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00076">EAX.h:76</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a7db44040163b33f818cfaf47185251ca"><div class="ttname"><a href="classEAXCommon.html#a7db44040163b33f818cfaf47185251ca">EAXCommon::setBlockCipher</a></div><div class="ttdeci">void setBlockCipher(BlockCipher *cipher)</div><div class="ttdoc">Sets the block cipher to use for this EAX object. </div><div class="ttdef"><b>Definition:</b> <a href="EAX_8h_source.html#l00054">EAX.h:54</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_abc6ccfb9338c94699458723f669513bf"><div class="ttname"><a href="classEAXCommon.html#abc6ccfb9338c94699458723f669513bf">EAXCommon::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="EAX_8cpp_source.html#l00059">EAX.cpp:59</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_acdf2c51fb11c068202311b5c95767db8"><div class="ttname"><a href="classEAXCommon.html#acdf2c51fb11c068202311b5c95767db8">EAXCommon::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="EAX_8cpp_source.html#l00116">EAX.cpp:116</a></div></div>
|
||||
<div class="ttc" id="classEAXCommon_html_a027956913eecfa0bc760f20f3b62df29"><div class="ttname"><a href="classEAXCommon.html#a027956913eecfa0bc760f20f3b62df29">EAXCommon::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="EAX_8cpp_source.html#l00054">EAX.cpp:54</a></div></div>
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@ -334,16 +334,16 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
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<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>
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<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>
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<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>
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<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>
|
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<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#l00121">GHASH.cpp:121</a></div></div>
|
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<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="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#l00085">GHASH.cpp:85</a></div></div>
|
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<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>
|
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<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>
|
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<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>
|
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<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#l00137">GHASH.cpp:137</a></div></div>
|
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<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="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#l00150">GHASH.cpp:150</a></div></div>
|
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<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>
|
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<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>
|
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<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>
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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) 2016 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>
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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>
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<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>
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<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 "GF128.h"</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <string.h></span></div>
|
||||
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
|
||||
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248"> 58</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a>(uint32_t H[4], <span class="keyword">const</span> <span class="keywordtype">void</span> *key)</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="preprocessor">#if defined(__AVR__)</span></div>
|
||||
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"></span> <span class="comment">// Copy the key into H but leave it in big endian order because</span></div>
|
||||
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// we can correct for the byte order in mul() below.</span></div>
|
||||
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  memcpy(H, key, 16);</div>
|
||||
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span> <span class="comment">// Copy the key into H and convert from big endian to host order.</span></div>
|
||||
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  memcpy(H, key, 16);</div>
|
||||
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#if defined(CRYPTO_LITTLE_ENDIAN)</span></div>
|
||||
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span> H[0] = be32toh(H[0]);</div>
|
||||
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  H[1] = be32toh(H[1]);</div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  H[2] = be32toh(H[2]);</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  H[3] = be32toh(H[3]);</div>
|
||||
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span>}</div>
|
||||
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab"> 90</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a>(uint32_t Y[4], <span class="keyword">const</span> uint32_t H[4])</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="preprocessor">#if defined(__AVR__)</span></div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor"></span> uint32_t Z[4] = {0, 0, 0, 0}; <span class="comment">// Z = 0</span></div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  uint32_t V0 = H[0]; <span class="comment">// V = H</span></div>
|
||||
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  uint32_t V1 = H[1];</div>
|
||||
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  uint32_t V2 = H[2];</div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  uint32_t V3 = H[3];</div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</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="l00100"></a><span class="lineno"> 100</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="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// fast but it should be resistant to cache timing attacks.</span></div>
|
||||
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
|
||||
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  uint8_t value = ((<span class="keyword">const</span> uint8_t *)Y)[posn];</div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">for</span> (uint8_t bit = 0; bit < 8; ++bit) {</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  __asm__ __volatile__ (</div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// Extract the high bit of "value" and turn it into a mask.</span></div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="stringliteral">"ldd r24,%8\n"</span></div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="stringliteral">"lsl r24\n"</span></div>
|
||||
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="stringliteral">"std %8,r24\n"</span></div>
|
||||
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="stringliteral">"mov __tmp_reg__,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="stringliteral">"sbc __tmp_reg__,__zero_reg__\n"</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>  <span class="comment">// XOR V with Z if the bit is 1.</span></div>
|
||||
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="stringliteral">"mov r24,%D0\n"</span> <span class="comment">// Z0 ^= (V0 & mask)</span></div>
|
||||
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="stringliteral">"ldd r25,%D4\n"</span></div>
|
||||
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="stringliteral">"std %D4,r25\n"</span></div>
|
||||
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="stringliteral">"mov r24,%C0\n"</span></div>
|
||||
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="stringliteral">"ldd r25,%C4\n"</span></div>
|
||||
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="stringliteral">"std %C4,r25\n"</span></div>
|
||||
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="stringliteral">"mov r24,%B0\n"</span></div>
|
||||
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="stringliteral">"ldd r25,%B4\n"</span></div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="stringliteral">"std %B4,r25\n"</span></div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="stringliteral">"mov r24,%A0\n"</span></div>
|
||||
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="stringliteral">"ldd r25,%A4\n"</span></div>
|
||||
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="stringliteral">"std %A4,r25\n"</span></div>
|
||||
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="stringliteral">"mov r24,%D1\n"</span> <span class="comment">// Z1 ^= (V1 & mask)</span></div>
|
||||
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="stringliteral">"ldd r25,%D5\n"</span></div>
|
||||
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="stringliteral">"std %D5,r25\n"</span></div>
|
||||
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="stringliteral">"mov r24,%C1\n"</span></div>
|
||||
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="stringliteral">"ldd r25,%C5\n"</span></div>
|
||||
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="stringliteral">"std %C5,r25\n"</span></div>
|
||||
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="stringliteral">"mov r24,%B1\n"</span></div>
|
||||
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="stringliteral">"ldd r25,%B5\n"</span></div>
|
||||
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="stringliteral">"std %B5,r25\n"</span></div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="stringliteral">"mov r24,%A1\n"</span></div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="stringliteral">"ldd r25,%A5\n"</span></div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="stringliteral">"std %A5,r25\n"</span></div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="stringliteral">"mov r24,%D2\n"</span> <span class="comment">// Z2 ^= (V2 & mask)</span></div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="stringliteral">"ldd r25,%D6\n"</span></div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="stringliteral">"std %D6,r25\n"</span></div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="stringliteral">"mov r24,%C2\n"</span></div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="stringliteral">"ldd r25,%C6\n"</span></div>
|
||||
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="stringliteral">"std %C6,r25\n"</span></div>
|
||||
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="stringliteral">"mov r24,%B2\n"</span></div>
|
||||
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="stringliteral">"ldd r25,%B6\n"</span></div>
|
||||
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="stringliteral">"std %B6,r25\n"</span></div>
|
||||
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="stringliteral">"mov r24,%A2\n"</span></div>
|
||||
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="stringliteral">"ldd r25,%A6\n"</span></div>
|
||||
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="stringliteral">"std %A6,r25\n"</span></div>
|
||||
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="stringliteral">"mov r24,%D3\n"</span> <span class="comment">// Z3 ^= (V3 & mask)</span></div>
|
||||
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="stringliteral">"ldd r25,%D7\n"</span></div>
|
||||
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="stringliteral">"std %D7,r25\n"</span></div>
|
||||
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="stringliteral">"mov r24,%C3\n"</span></div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="stringliteral">"ldd r25,%C7\n"</span></div>
|
||||
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="stringliteral">"std %C7,r25\n"</span></div>
|
||||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="stringliteral">"mov r24,%B3\n"</span></div>
|
||||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="stringliteral">"ldd r25,%B7\n"</span></div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="stringliteral">"std %B7,r25\n"</span></div>
|
||||
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="stringliteral">"mov r24,%A3\n"</span></div>
|
||||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="stringliteral">"ldd r25,%A7\n"</span></div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="stringliteral">"std %A7,r25\n"</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">// Rotate V right by 1 bit.</span></div>
|
||||
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="stringliteral">"lsr %A0\n"</span></div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="stringliteral">"ror %B0\n"</span></div>
|
||||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="stringliteral">"ror %C0\n"</span></div>
|
||||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="stringliteral">"ror %D0\n"</span></div>
|
||||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="stringliteral">"ror %A1\n"</span></div>
|
||||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="stringliteral">"ror %B1\n"</span></div>
|
||||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="stringliteral">"ror %C1\n"</span></div>
|
||||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="stringliteral">"ror %D1\n"</span></div>
|
||||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="stringliteral">"ror %A2\n"</span></div>
|
||||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="stringliteral">"ror %B2\n"</span></div>
|
||||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="stringliteral">"ror %C2\n"</span></div>
|
||||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="stringliteral">"ror %D2\n"</span></div>
|
||||
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="stringliteral">"ror %A3\n"</span></div>
|
||||
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="stringliteral">"ror %B3\n"</span></div>
|
||||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="stringliteral">"ror %C3\n"</span></div>
|
||||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="stringliteral">"ror %D3\n"</span></div>
|
||||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="stringliteral">"mov r24,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="stringliteral">"sbc r24,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="stringliteral">"andi r24,0xE1\n"</span></div>
|
||||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="stringliteral">"eor %A0,r24\n"</span></div>
|
||||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  : <span class="stringliteral">"+r"</span>(V0), <span class="stringliteral">"+r"</span>(V1), <span class="stringliteral">"+r"</span>(V2), <span class="stringliteral">"+r"</span>(V3)</div>
|
||||
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  : <span class="stringliteral">"Q"</span>(Z[0]), <span class="stringliteral">"Q"</span>(Z[1]), <span class="stringliteral">"Q"</span>(Z[2]), <span class="stringliteral">"Q"</span>(Z[3]), <span class="stringliteral">"Q"</span>(value)</div>
|
||||
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  : <span class="stringliteral">"r24"</span>, <span class="stringliteral">"r25"</span></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>  }</div>
|
||||
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</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>  <span class="comment">// We have finished the block so copy Z into Y and byte-swap.</span></div>
|
||||
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  __asm__ __volatile__ (</div>
|
||||
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="stringliteral">"ldd __tmp_reg__,%A0\n"</span></div>
|
||||
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="stringliteral">"ldd __tmp_reg__,%B0\n"</span></div>
|
||||
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="stringliteral">"ldd __tmp_reg__,%C0\n"</span></div>
|
||||
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="stringliteral">"ldd __tmp_reg__,%D0\n"</span></div>
|
||||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="stringliteral">"ldd __tmp_reg__,%A1\n"</span></div>
|
||||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="stringliteral">"ldd __tmp_reg__,%B1\n"</span></div>
|
||||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="stringliteral">"ldd __tmp_reg__,%C1\n"</span></div>
|
||||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="stringliteral">"ldd __tmp_reg__,%D1\n"</span></div>
|
||||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="stringliteral">"ldd __tmp_reg__,%A2\n"</span></div>
|
||||
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="stringliteral">"ldd __tmp_reg__,%B2\n"</span></div>
|
||||
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="stringliteral">"ldd __tmp_reg__,%C2\n"</span></div>
|
||||
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="stringliteral">"ldd __tmp_reg__,%D2\n"</span></div>
|
||||
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="stringliteral">"ldd __tmp_reg__,%A3\n"</span></div>
|
||||
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="stringliteral">"ldd __tmp_reg__,%B3\n"</span></div>
|
||||
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="stringliteral">"ldd __tmp_reg__,%C3\n"</span></div>
|
||||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="stringliteral">"ldd __tmp_reg__,%D3\n"</span></div>
|
||||
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="stringliteral">"st X,__tmp_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  : : <span class="stringliteral">"Q"</span>(Z[0]), <span class="stringliteral">"Q"</span>(Z[1]), <span class="stringliteral">"Q"</span>(Z[2]), <span class="stringliteral">"Q"</span>(Z[3]), <span class="stringliteral">"x"</span>(Y)</div>
|
||||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  );</div>
|
||||
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="preprocessor">#else // !__AVR__</span></div>
|
||||
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor"></span> uint32_t Z0 = 0; <span class="comment">// Z = 0</span></div>
|
||||
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  uint32_t Z1 = 0;</div>
|
||||
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  uint32_t Z2 = 0;</div>
|
||||
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  uint32_t Z3 = 0;</div>
|
||||
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  uint32_t V0 = H[0]; <span class="comment">// V = H</span></div>
|
||||
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  uint32_t V1 = H[1];</div>
|
||||
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  uint32_t V2 = H[2];</div>
|
||||
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  uint32_t V3 = H[3];</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>  <span class="comment">// Multiply Z by V for the set bits in Y, starting at the top.</span></div>
|
||||
<div class="line"><a name="l00270"></a><span class="lineno"> 270</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="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// fast but it should be resistant to cache timing attacks.</span></div>
|
||||
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
|
||||
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  uint8_t value = ((<span class="keyword">const</span> uint8_t *)Y)[posn];</div>
|
||||
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">for</span> (uint8_t bit = 0; bit < 8; ++bit, value <<= 1) {</div>
|
||||
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// Extract the high bit of "value" and turn it into a mask.</span></div>
|
||||
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  uint32_t mask = (~((uint32_t)(value >> 7))) + 1;</div>
|
||||
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div>
|
||||
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// XOR V with Z if the bit is 1.</span></div>
|
||||
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  Z0 ^= (V0 & mask);</div>
|
||||
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  Z1 ^= (V1 & mask);</div>
|
||||
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  Z2 ^= (V2 & mask);</div>
|
||||
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  Z3 ^= (V3 & mask);</div>
|
||||
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div>
|
||||
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// Rotate V right by 1 bit.</span></div>
|
||||
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  mask = ((~(V3 & 0x01)) + 1) & 0xE1000000;</div>
|
||||
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  V3 = (V3 >> 1) | (V2 << 31);</div>
|
||||
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  V2 = (V2 >> 1) | (V1 << 31);</div>
|
||||
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  V1 = (V1 >> 1) | (V0 << 31);</div>
|
||||
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  V0 = (V0 >> 1) ^ mask;</div>
|
||||
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div>
|
||||
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div>
|
||||
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> </div>
|
||||
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// We have finished the block so copy Z into Y and byte-swap.</span></div>
|
||||
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  Y[0] = htobe32(Z0);</div>
|
||||
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  Y[1] = htobe32(Z1);</div>
|
||||
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  Y[2] = htobe32(Z2);</div>
|
||||
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  Y[3] = htobe32(Z3);</div>
|
||||
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="preprocessor">#endif // !__AVR__</span></div>
|
||||
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="preprocessor"></span>}</div>
|
||||
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
|
||||
<div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d"> 314</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d">GF128::dbl</a>(uint32_t V[4])</div>
|
||||
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> {</div>
|
||||
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
|
||||
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="preprocessor"></span> __asm__ __volatile__ (</div>
|
||||
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="stringliteral">"ld r16,Z\n"</span></div>
|
||||
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="stringliteral">"ldd r17,Z+1\n"</span></div>
|
||||
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="stringliteral">"ldd r18,Z+2\n"</span></div>
|
||||
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="stringliteral">"ldd r19,Z+3\n"</span></div>
|
||||
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="stringliteral">"lsr r16\n"</span></div>
|
||||
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
||||
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
||||
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
||||
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="stringliteral">"std Z+1,r17\n"</span></div>
|
||||
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="stringliteral">"std Z+2,r18\n"</span></div>
|
||||
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="stringliteral">"std Z+3,r19\n"</span></div>
|
||||
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="stringliteral">"ldd r17,Z+4\n"</span></div>
|
||||
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="stringliteral">"ldd r18,Z+5\n"</span></div>
|
||||
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="stringliteral">"ldd r19,Z+6\n"</span></div>
|
||||
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="stringliteral">"ldd r20,Z+7\n"</span></div>
|
||||
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
||||
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
||||
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
||||
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="stringliteral">"ror r20\n"</span></div>
|
||||
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="stringliteral">"std Z+4,r17\n"</span></div>
|
||||
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="stringliteral">"std Z+5,r18\n"</span></div>
|
||||
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="stringliteral">"std Z+6,r19\n"</span></div>
|
||||
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="stringliteral">"std Z+7,r20\n"</span></div>
|
||||
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="stringliteral">"ldd r17,Z+8\n"</span></div>
|
||||
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="stringliteral">"ldd r18,Z+9\n"</span></div>
|
||||
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="stringliteral">"ldd r19,Z+10\n"</span></div>
|
||||
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="stringliteral">"ldd r20,Z+11\n"</span></div>
|
||||
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
||||
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
||||
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
||||
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="stringliteral">"ror r20\n"</span></div>
|
||||
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="stringliteral">"std Z+8,r17\n"</span></div>
|
||||
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="stringliteral">"std Z+9,r18\n"</span></div>
|
||||
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="stringliteral">"std Z+10,r19\n"</span></div>
|
||||
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="stringliteral">"std Z+11,r20\n"</span></div>
|
||||
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="stringliteral">"ldd r17,Z+12\n"</span></div>
|
||||
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="stringliteral">"ldd r18,Z+13\n"</span></div>
|
||||
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="stringliteral">"ldd r19,Z+14\n"</span></div>
|
||||
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="stringliteral">"ldd r20,Z+15\n"</span></div>
|
||||
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
||||
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
||||
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
||||
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="stringliteral">"ror r20\n"</span></div>
|
||||
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="stringliteral">"std Z+12,r17\n"</span></div>
|
||||
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="stringliteral">"std Z+13,r18\n"</span></div>
|
||||
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="stringliteral">"std Z+14,r19\n"</span></div>
|
||||
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="stringliteral">"std Z+15,r20\n"</span></div>
|
||||
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="stringliteral">"mov r17,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="stringliteral">"sbc r17,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="stringliteral">"andi r17,0xE1\n"</span></div>
|
||||
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="stringliteral">"eor r16,r17\n"</span></div>
|
||||
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="stringliteral">"st Z,r16\n"</span></div>
|
||||
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  : : <span class="stringliteral">"z"</span>(V)</div>
|
||||
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  : <span class="stringliteral">"r16"</span>, <span class="stringliteral">"r17"</span>, <span class="stringliteral">"r18"</span>, <span class="stringliteral">"r19"</span>, <span class="stringliteral">"r20"</span></div>
|
||||
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  );</div>
|
||||
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor"></span> uint32_t V0 = be32toh(V[0]);</div>
|
||||
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  uint32_t V1 = be32toh(V[1]);</div>
|
||||
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  uint32_t V2 = be32toh(V[2]);</div>
|
||||
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  uint32_t V3 = be32toh(V[3]);</div>
|
||||
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  uint32_t mask = ((~(V3 & 0x01)) + 1) & 0xE1000000;</div>
|
||||
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  V3 = (V3 >> 1) | (V2 << 31);</div>
|
||||
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  V2 = (V2 >> 1) | (V1 << 31);</div>
|
||||
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  V1 = (V1 >> 1) | (V0 << 31);</div>
|
||||
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  V0 = (V0 >> 1) ^ mask;</div>
|
||||
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  V[0] = htobe32(V0);</div>
|
||||
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  V[1] = htobe32(V1);</div>
|
||||
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  V[2] = htobe32(V2);</div>
|
||||
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  V[3] = htobe32(V3);</div>
|
||||
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="preprocessor"></span>}</div>
|
||||
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
|
||||
<div class="line"><a name="l00406"></a><span class="lineno"><a class="line" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4"> 406</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a>(uint32_t V[4])</div>
|
||||
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> {</div>
|
||||
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
|
||||
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="preprocessor"></span> __asm__ __volatile__ (</div>
|
||||
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="stringliteral">"ldd r16,Z+15\n"</span></div>
|
||||
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="stringliteral">"ldd r17,Z+14\n"</span></div>
|
||||
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="stringliteral">"ldd r18,Z+13\n"</span></div>
|
||||
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="stringliteral">"ldd r19,Z+12\n"</span></div>
|
||||
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="stringliteral">"lsl r16\n"</span></div>
|
||||
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
||||
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
||||
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
||||
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="stringliteral">"std Z+14,r17\n"</span></div>
|
||||
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="stringliteral">"std Z+13,r18\n"</span></div>
|
||||
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="stringliteral">"std Z+12,r19\n"</span></div>
|
||||
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="stringliteral">"ldd r17,Z+11\n"</span></div>
|
||||
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="stringliteral">"ldd r18,Z+10\n"</span></div>
|
||||
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="stringliteral">"ldd r19,Z+9\n"</span></div>
|
||||
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="stringliteral">"ldd r20,Z+8\n"</span></div>
|
||||
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
||||
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
||||
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
||||
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
||||
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="stringliteral">"std Z+11,r17\n"</span></div>
|
||||
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="stringliteral">"std Z+10,r18\n"</span></div>
|
||||
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="stringliteral">"std Z+9,r19\n"</span></div>
|
||||
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="stringliteral">"std Z+8,r20\n"</span></div>
|
||||
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="stringliteral">"ldd r17,Z+7\n"</span></div>
|
||||
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="stringliteral">"ldd r18,Z+6\n"</span></div>
|
||||
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="stringliteral">"ldd r19,Z+5\n"</span></div>
|
||||
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="stringliteral">"ldd r20,Z+4\n"</span></div>
|
||||
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
||||
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
||||
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
||||
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
||||
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="stringliteral">"std Z+7,r17\n"</span></div>
|
||||
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="stringliteral">"std Z+6,r18\n"</span></div>
|
||||
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="stringliteral">"std Z+5,r19\n"</span></div>
|
||||
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="stringliteral">"std Z+4,r20\n"</span></div>
|
||||
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="stringliteral">"ldd r17,Z+3\n"</span></div>
|
||||
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="stringliteral">"ldd r18,Z+2\n"</span></div>
|
||||
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="stringliteral">"ldd r19,Z+1\n"</span></div>
|
||||
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="stringliteral">"ld r20,Z\n"</span></div>
|
||||
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
||||
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
||||
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
||||
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
||||
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="stringliteral">"std Z+3,r17\n"</span></div>
|
||||
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="stringliteral">"std Z+2,r18\n"</span></div>
|
||||
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="stringliteral">"std Z+1,r19\n"</span></div>
|
||||
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="stringliteral">"st Z,r20\n"</span></div>
|
||||
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="stringliteral">"mov r17,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="stringliteral">"sbc r17,__zero_reg__\n"</span></div>
|
||||
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="stringliteral">"andi r17,0x87\n"</span></div>
|
||||
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="stringliteral">"eor r16,r17\n"</span></div>
|
||||
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="stringliteral">"std Z+15,r16\n"</span></div>
|
||||
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  : : <span class="stringliteral">"z"</span>(V)</div>
|
||||
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  : <span class="stringliteral">"r16"</span>, <span class="stringliteral">"r17"</span>, <span class="stringliteral">"r18"</span>, <span class="stringliteral">"r19"</span>, <span class="stringliteral">"r20"</span></div>
|
||||
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  );</div>
|
||||
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="preprocessor">#else</span></div>
|
||||
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="preprocessor"></span> uint32_t V0 = be32toh(V[0]);</div>
|
||||
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  uint32_t V1 = be32toh(V[1]);</div>
|
||||
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  uint32_t V2 = be32toh(V[2]);</div>
|
||||
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  uint32_t V3 = be32toh(V[3]);</div>
|
||||
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  uint32_t mask = ((~(V0 >> 31)) + 1) & 0x00000087;</div>
|
||||
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  V0 = (V0 << 1) | (V1 >> 31);</div>
|
||||
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  V1 = (V1 << 1) | (V2 >> 31);</div>
|
||||
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  V2 = (V2 << 1) | (V3 >> 31);</div>
|
||||
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  V3 = (V3 << 1) ^ mask;</div>
|
||||
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  V[0] = htobe32(V0);</div>
|
||||
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  V[1] = htobe32(V1);</div>
|
||||
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  V[2] = htobe32(V2);</div>
|
||||
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  V[3] = htobe32(V3);</div>
|
||||
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="preprocessor"></span>}</div>
|
||||
<div class="ttc" id="classGF128_html_a56000a4cd7d436de42360e9d43eecde4"><div class="ttname"><a href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a></div><div class="ttdeci">static void dblEAX(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field using EAX conventions. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00406">GF128.cpp:406</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_a7d9a341a1715d37d25feba21627bc3ab"><div class="ttname"><a href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a></div><div class="ttdeci">static void mul(uint32_t Y[4], const uint32_t H[4])</div><div class="ttdoc">Perform a multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00090">GF128.cpp:90</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_aef22f6b7be5937f60ed2b7bcf831e52d"><div class="ttname"><a href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d">GF128::dbl</a></div><div class="ttdeci">static void dbl(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00314">GF128.cpp:314</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_a43adbd72619e4f97ce427a60e7c0a248"><div class="ttname"><a href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a></div><div class="ttdeci">static void mulInit(uint32_t H[4], const void *key)</div><div class="ttdoc">Initialize multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00058">GF128.cpp:58</a></div></div>
|
||||
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GF128_8h_source.html
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||||
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|
||||
</div><!-- top -->
|
||||
<div class="header">
|
||||
<div class="headertitle">
|
||||
<div class="title">GF128.h</div> </div>
|
||||
</div><!--header-->
|
||||
<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) 2016 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_GF128_h</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_GF128_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"><a class="line" href="classGF128.html"> 28</a></span> <span class="keyword">class </span><a class="code" href="classGF128.html">GF128</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">private</span>:</div>
|
||||
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="code" href="classGF128.html">GF128</a>() {}</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  ~<a class="code" href="classGF128.html">GF128</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">public</span>:</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">mulInit</a>(uint32_t H[4], <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="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">mul</a>(uint32_t Y[4], <span class="keyword">const</span> uint32_t H[4]);</div>
|
||||
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d">dbl</a>(uint32_t V[4]);</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">dblEAX</a>(uint32_t V[4]);</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> </div>
|
||||
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classGF128_html_a56000a4cd7d436de42360e9d43eecde4"><div class="ttname"><a href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a></div><div class="ttdeci">static void dblEAX(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field using EAX conventions. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00406">GF128.cpp:406</a></div></div>
|
||||
<div class="ttc" id="classGF128_html"><div class="ttname"><a href="classGF128.html">GF128</a></div><div class="ttdoc">Operations in the Galois field GF(2^128). </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8h_source.html#l00028">GF128.h:28</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_a7d9a341a1715d37d25feba21627bc3ab"><div class="ttname"><a href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a></div><div class="ttdeci">static void mul(uint32_t Y[4], const uint32_t H[4])</div><div class="ttdoc">Perform a multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00090">GF128.cpp:90</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_aef22f6b7be5937f60ed2b7bcf831e52d"><div class="ttname"><a href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d">GF128::dbl</a></div><div class="ttdeci">static void dbl(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00314">GF128.cpp:314</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_a43adbd72619e4f97ce427a60e7c0a248"><div class="ttname"><a href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a></div><div class="ttdeci">static void mulInit(uint32_t H[4], const void *key)</div><div class="ttdoc">Initialize multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00058">GF128.cpp:58</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
|
||||
<!-- start footer part -->
|
||||
<hr class="footer"/><address class="footer"><small>
|
||||
Generated on Sat Feb 13 2016 07:01:07 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
|
||||
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
||||
</a> 1.8.6
|
||||
</small></address>
|
||||
</body>
|
||||
</html>
|
||||
@ -111,8 +111,8 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<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="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "GF128.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "Crypto.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>
|
||||
@ -127,119 +127,70 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<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="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a>(state.H, key);</div>
|
||||
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  memset(state.Y, 0, <span class="keyword">sizeof</span>(state.Y));</div>
|
||||
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  state.posn = 0;</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> </div>
|
||||
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="classGHASH.html#a235edb14c6ed1ec55ddda595816ef1c7"> 85</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="l00086"></a><span class="lineno"> 86</span> {</div>
|
||||
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// XOR the input with state.Y in 128-bit chunks and process them.</span></div>
|
||||
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">const</span> uint8_t *d = (<span class="keyword">const</span> uint8_t *)data;</div>
|
||||
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">while</span> (len > 0) {</div>
|
||||
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  uint8_t size = 16 - state.posn;</div>
|
||||
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (size > len)</div>
|
||||
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  size = len;</div>
|
||||
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  uint8_t *y = ((uint8_t *)state.Y) + state.posn;</div>
|
||||
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">for</span> (uint8_t i = 0; i < size; ++i)</div>
|
||||
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  y[i] ^= d[i];</div>
|
||||
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  state.posn += size;</div>
|
||||
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  len -= size;</div>
|
||||
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  d += size;</div>
|
||||
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (state.posn == 16) {</div>
|
||||
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a>(state.Y, state.H);</div>
|
||||
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  state.posn = 0;</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"> 104</span> }</div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
|
||||
<div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classGHASH.html#ab221298ca69c9612bfbfd3dedcb28307"> 121</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="l00122"></a><span class="lineno"> 122</span> {</div>
|
||||
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// Pad with zeroes to a multiple of 16 bytes.</span></div>
|
||||
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">pad</a>();</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>  <span class="comment">// The token is the current value of Y.</span></div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (len > 16)</div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  len = 16;</div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  memcpy(token, state.Y, len);</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="l00137"></a><span class="lineno"><a class="line" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad"> 137</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a8c38ee9313605f1d8b12dca7cd43e4ad">GHASH::pad</a>()</div>
|
||||
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> {</div>
|
||||
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (state.posn != 0) {</div>
|
||||
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// Padding involves XOR'ing the rest of state.Y with zeroes,</span></div>
|
||||
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// which does nothing. Immediately process the next chunk.</span></div>
|
||||
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a>(state.Y, state.H);</div>
|
||||
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  state.posn = 0;</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> }</div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
|
||||
<div class="line"><a name="l00150"></a><span class="lineno"><a class="line" href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e"> 150</a></span> <span class="keywordtype">void</span> <a class="code" href="classGHASH.html#a4b1ee789debf56f7f24807960ef0556e">GHASH::clear</a>()</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>  clean(state);</div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</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#l00121">GHASH.cpp:121</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#l00085">GHASH.cpp:85</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_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#l00137">GHASH.cpp:137</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#l00150">GHASH.cpp:150</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_a7d9a341a1715d37d25feba21627bc3ab"><div class="ttname"><a href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a></div><div class="ttdeci">static void mul(uint32_t Y[4], const uint32_t H[4])</div><div class="ttdoc">Perform a multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00090">GF128.cpp:90</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>
|
||||
<div class="ttc" id="classGF128_html_a43adbd72619e4f97ce427a60e7c0a248"><div class="ttname"><a href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a></div><div class="ttdeci">static void mulInit(uint32_t H[4], const void *key)</div><div class="ttdoc">Initialize multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00058">GF128.cpp:58</a></div></div>
|
||||
</div><!-- fragment --></div><!-- contents -->
|
||||
<!-- start footer part -->
|
||||
<hr class="footer"/><address class="footer"><small>
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||||
Generated on Sat Jan 16 2016 09:47:01 for ArduinoLibs by  <a href="http://www.doxygen.org/index.html">
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Generated on Sat Feb 13 2016 07:01:07 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>
|
||||
|
||||
@ -136,23 +136,21 @@ var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
||||
<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="line"><a name="l00049"></a><span class="lineno"> 49</span> };</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="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#l00121">GHASH.cpp:121</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#l00085">GHASH.cpp:85</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_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#l00137">GHASH.cpp:137</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_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#l00150">GHASH.cpp:150</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
|
||||
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</a> 1.8.6
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</a> 1.8.6
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</a> 1.8.6
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</a> 1.8.6
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216
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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">OMAC.cpp</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) 2016 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>
|
||||
<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>
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||||
<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>
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||||
<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>
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||||
<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 "OMAC.h"</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "GF128.h"</span></div>
|
||||
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "Crypto.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="l00048"></a><span class="lineno"><a class="line" href="classOMAC.html#ae84365423cef3f769464489848942559"> 48</a></span> <a class="code" href="classOMAC.html#ae84365423cef3f769464489848942559">OMAC::OMAC</a>()</div>
|
||||
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  : _blockCipher(0)</div>
|
||||
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  , posn(0)</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> </div>
|
||||
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classOMAC.html#a6bb2222c997608ec68b25831da965e8f"> 59</a></span> <a class="code" href="classOMAC.html#a6bb2222c997608ec68b25831da965e8f">OMAC::~OMAC</a>()</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>  clean(b);</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="l00101"></a><span class="lineno"><a class="line" href="classOMAC.html#a0274138725ddf6240c030574bae3975c"> 101</a></span> <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#a0274138725ddf6240c030574bae3975c">OMAC::initFirst</a>(uint8_t omac[16])</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>  <span class="comment">// Start the OMAC context. We assume that the data that follows</span></div>
|
||||
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// will be at least 1 byte in length so that we can encrypt the</span></div>
|
||||
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// zeroes now to derive the B value.</span></div>
|
||||
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  memset(omac, 0, 16);</div>
|
||||
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  _blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(omac, omac);</div>
|
||||
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  posn = 0;</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>  <span class="comment">// Generate the B value from the encrypted block of zeroes.</span></div>
|
||||
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// We will need this later when finalising the OMAC hashes.</span></div>
|
||||
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  memcpy(b, omac, 16);</div>
|
||||
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a>(b);</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> </div>
|
||||
<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5"> 127</a></span> <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">OMAC::initNext</a>(uint8_t omac[16], uint8_t tag)</div>
|
||||
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> {</div>
|
||||
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  memset(omac, 0, 15);</div>
|
||||
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  omac[15] = tag;</div>
|
||||
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  posn = 16;</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="l00143"></a><span class="lineno"><a class="line" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde"> 143</a></span> <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">OMAC::update</a>(uint8_t omac[16], <span class="keyword">const</span> uint8_t *data, <span class="keywordtype">size_t</span> size)</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="keywordflow">while</span> (size > 0) {</div>
|
||||
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// Encrypt the current block if it is already full.</span></div>
|
||||
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (posn == 16) {</div>
|
||||
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  _blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(omac, omac);</div>
|
||||
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  posn = 0;</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> </div>
|
||||
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// XOR the incoming data with the current block.</span></div>
|
||||
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  uint8_t len = 16 - posn;</div>
|
||||
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">if</span> (len > size)</div>
|
||||
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  len = (uint8_t)size;</div>
|
||||
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < len; ++index)</div>
|
||||
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  omac[posn++] ^= data[index];</div>
|
||||
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
|
||||
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// Move onto the next block.</span></div>
|
||||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  size -= len;</div>
|
||||
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  data += len;</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> </div>
|
||||
<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e"> 172</a></span> <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">OMAC::finalize</a>(uint8_t omac[16])</div>
|
||||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> {</div>
|
||||
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Apply padding if necessary.</span></div>
|
||||
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">if</span> (posn != 16) {</div>
|
||||
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// Need padding: XOR with P = 2 * B.</span></div>
|
||||
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  uint32_t p[4];</div>
|
||||
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  memcpy(p, b, 16);</div>
|
||||
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a>(p);</div>
|
||||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  omac[posn] ^= 0x80;</div>
|
||||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  omac[index] ^= ((<span class="keyword">const</span> uint8_t *)p)[index];</div>
|
||||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  clean(p);</div>
|
||||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  } <span class="keywordflow">else</span> {</div>
|
||||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// No padding necessary: XOR with B.</span></div>
|
||||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">for</span> (uint8_t index = 0; index < 16; ++index)</div>
|
||||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  omac[index] ^= ((<span class="keyword">const</span> uint8_t *)b)[index];</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">// Encrypt the hash to get the final OMAC value.</span></div>
|
||||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  _blockCipher-><a class="code" href="classBlockCipher.html#aed0788b25f6bb2f1bd47d5a5f0c5db33">encryptBlock</a>(omac, omac);</div>
|
||||
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> }</div>
|
||||
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
|
||||
<div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="classOMAC.html#a072715dbda39dc9c360cfcaab31d6aa7"> 197</a></span> <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#a072715dbda39dc9c360cfcaab31d6aa7">OMAC::clear</a>()</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>  clean(b);</div>
|
||||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div>
|
||||
<div class="ttc" id="classOMAC_html_a072715dbda39dc9c360cfcaab31d6aa7"><div class="ttname"><a href="classOMAC.html#a072715dbda39dc9c360cfcaab31d6aa7">OMAC::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00197">OMAC.cpp:197</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_ae4ccdaee764df779f7ae0c7433078b3e"><div class="ttname"><a href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">OMAC::finalize</a></div><div class="ttdeci">void finalize(uint8_t omac[16])</div><div class="ttdoc">Finalises an OMAC hashing context. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00172">OMAC.cpp:172</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_a6bb2222c997608ec68b25831da965e8f"><div class="ttname"><a href="classOMAC.html#a6bb2222c997608ec68b25831da965e8f">OMAC::~OMAC</a></div><div class="ttdeci">~OMAC()</div><div class="ttdoc">Destroys this OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00059">OMAC.cpp:59</a></div></div>
|
||||
<div class="ttc" id="classGF128_html_a56000a4cd7d436de42360e9d43eecde4"><div class="ttname"><a href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a></div><div class="ttdeci">static void dblEAX(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field using EAX conventions. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00406">GF128.cpp:406</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="classOMAC_html_ad496c7d2de4f22fd4192345003e75ee5"><div class="ttname"><a href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">OMAC::initNext</a></div><div class="ttdeci">void initNext(uint8_t omac[16], uint8_t tag)</div><div class="ttdoc">Initialises or restarts an OMAC hashing context. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00127">OMAC.cpp:127</a></div></div>
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<div class="ttc" id="classOMAC_html_a6692d7f37dd097fdfdd2b198aa0d9cde"><div class="ttname"><a href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">OMAC::update</a></div><div class="ttdeci">void update(uint8_t omac[16], const uint8_t *data, size_t size)</div><div class="ttdoc">Updates an OMAC hashing context with more data. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00143">OMAC.cpp:143</a></div></div>
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<div class="ttc" id="classOMAC_html_ae84365423cef3f769464489848942559"><div class="ttname"><a href="classOMAC.html#ae84365423cef3f769464489848942559">OMAC::OMAC</a></div><div class="ttdeci">OMAC()</div><div class="ttdoc">Constructs a new OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00048">OMAC.cpp:48</a></div></div>
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<div class="ttc" id="classOMAC_html_a0274138725ddf6240c030574bae3975c"><div class="ttname"><a href="classOMAC.html#a0274138725ddf6240c030574bae3975c">OMAC::initFirst</a></div><div class="ttdeci">void initFirst(uint8_t omac[16])</div><div class="ttdoc">Initialises the first OMAC hashing context and creates the B value. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00101">OMAC.cpp:101</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="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) 2016 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_OMAC_H</span></div>
|
||||
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define CRYPTO_OMAC_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 "BlockCipher.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="classOMAC.html"> 28</a></span> <span class="keyword">class </span><a class="code" href="classOMAC.html">OMAC</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="classOMAC.html#ae84365423cef3f769464489848942559">OMAC</a>();</div>
|
||||
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="classOMAC.html#a6bb2222c997608ec68b25831da965e8f">~OMAC</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"><a class="line" href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a"> 34</a></span>  <a class="code" href="classBlockCipher.html">BlockCipher</a> *<a class="code" href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a">blockCipher</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _blockCipher; }</div>
|
||||
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classOMAC.html#a8ae86bc629cca60cebb995d092ba06b4"> 35</a></span>  <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#a8ae86bc629cca60cebb995d092ba06b4">setBlockCipher</a>(<a class="code" href="classBlockCipher.html">BlockCipher</a> *cipher) { _blockCipher = cipher; }</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="keywordtype">void</span> <a class="code" href="classOMAC.html#a0274138725ddf6240c030574bae3975c">initFirst</a>(uint8_t omac[16]);</div>
|
||||
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">initNext</a>(uint8_t omac[16], uint8_t tag);</div>
|
||||
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">update</a>(uint8_t omac[16], <span class="keyword">const</span> uint8_t *data, <span class="keywordtype">size_t</span> size);</div>
|
||||
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">void</span> <a class="code" href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">finalize</a>(uint8_t omac[16]);</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="classOMAC.html#a072715dbda39dc9c360cfcaab31d6aa7">clear</a>();</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">private</span>:</div>
|
||||
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="classBlockCipher.html">BlockCipher</a> *_blockCipher;</div>
|
||||
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  uint32_t b[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> };</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="preprocessor">#endif</span></div>
|
||||
<div class="ttc" id="classOMAC_html_a072715dbda39dc9c360cfcaab31d6aa7"><div class="ttname"><a href="classOMAC.html#a072715dbda39dc9c360cfcaab31d6aa7">OMAC::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00197">OMAC.cpp:197</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html"><div class="ttname"><a href="classOMAC.html">OMAC</a></div><div class="ttdoc">Implementation of the OMAC message authenticator. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8h_source.html#l00028">OMAC.h:28</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_ae4ccdaee764df779f7ae0c7433078b3e"><div class="ttname"><a href="classOMAC.html#ae4ccdaee764df779f7ae0c7433078b3e">OMAC::finalize</a></div><div class="ttdeci">void finalize(uint8_t omac[16])</div><div class="ttdoc">Finalises an OMAC hashing context. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00172">OMAC.cpp:172</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_a6bb2222c997608ec68b25831da965e8f"><div class="ttname"><a href="classOMAC.html#a6bb2222c997608ec68b25831da965e8f">OMAC::~OMAC</a></div><div class="ttdeci">~OMAC()</div><div class="ttdoc">Destroys this OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00059">OMAC.cpp:59</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="classOMAC_html_a8ae86bc629cca60cebb995d092ba06b4"><div class="ttname"><a href="classOMAC.html#a8ae86bc629cca60cebb995d092ba06b4">OMAC::setBlockCipher</a></div><div class="ttdeci">void setBlockCipher(BlockCipher *cipher)</div><div class="ttdoc">Sets the block cipher to use for this OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8h_source.html#l00035">OMAC.h:35</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_ad496c7d2de4f22fd4192345003e75ee5"><div class="ttname"><a href="classOMAC.html#ad496c7d2de4f22fd4192345003e75ee5">OMAC::initNext</a></div><div class="ttdeci">void initNext(uint8_t omac[16], uint8_t tag)</div><div class="ttdoc">Initialises or restarts an OMAC hashing context. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00127">OMAC.cpp:127</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_a6692d7f37dd097fdfdd2b198aa0d9cde"><div class="ttname"><a href="classOMAC.html#a6692d7f37dd097fdfdd2b198aa0d9cde">OMAC::update</a></div><div class="ttdeci">void update(uint8_t omac[16], const uint8_t *data, size_t size)</div><div class="ttdoc">Updates an OMAC hashing context with more data. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00143">OMAC.cpp:143</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_ae84365423cef3f769464489848942559"><div class="ttname"><a href="classOMAC.html#ae84365423cef3f769464489848942559">OMAC::OMAC</a></div><div class="ttdeci">OMAC()</div><div class="ttdoc">Constructs a new OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00048">OMAC.cpp:48</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_abca82def496c6c6ab1ce5e5a958ec34a"><div class="ttname"><a href="classOMAC.html#abca82def496c6c6ab1ce5e5a958ec34a">OMAC::blockCipher</a></div><div class="ttdeci">BlockCipher * blockCipher() const </div><div class="ttdoc">Gets the block cipher that is in use for this OMAC object. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8h_source.html#l00034">OMAC.h:34</a></div></div>
|
||||
<div class="ttc" id="classOMAC_html_a0274138725ddf6240c030574bae3975c"><div class="ttname"><a href="classOMAC.html#a0274138725ddf6240c030574bae3975c">OMAC::initFirst</a></div><div class="ttdeci">void initFirst(uint8_t omac[16])</div><div class="ttdoc">Initialises the first OMAC hashing context and creates the B value. </div><div class="ttdef"><b>Definition:</b> <a href="OMAC_8cpp_source.html#l00101">OMAC.cpp:101</a></div></div>
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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