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<a href="#pub-methods">Public Member Functions</a> |
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<a href="classKeccakCore-members.html">List of all members</a> </div>
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<div class="title">KeccakCore Class Reference</div> </div>
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<p>Keccak core sponge function.
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<a href="classKeccakCore.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="KeccakCore_8h_source.html">KeccakCore.h</a>></code></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a850c8e85bdb6b347411239716535d9c9"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#a850c8e85bdb6b347411239716535d9c9">KeccakCore</a> ()</td></tr>
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<tr class="memdesc:a850c8e85bdb6b347411239716535d9c9"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a new Keccak sponge function. <a href="#a850c8e85bdb6b347411239716535d9c9">More...</a><br/></td></tr>
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<tr class="separator:a850c8e85bdb6b347411239716535d9c9"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4579e3a9b24f1d615fa8d660c23e77a4"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4579e3a9b24f1d615fa8d660c23e77a4"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#a4579e3a9b24f1d615fa8d660c23e77a4">~KeccakCore</a> ()</td></tr>
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<tr class="memdesc:a4579e3a9b24f1d615fa8d660c23e77a4"><td class="mdescLeft"> </td><td class="mdescRight">Destroys this Keccak sponge function after clearing all sensitive information. <br/></td></tr>
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<tr class="separator:a4579e3a9b24f1d615fa8d660c23e77a4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a804b895121a4e04bc491f41a5821a13e"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#a804b895121a4e04bc491f41a5821a13e">capacity</a> () const </td></tr>
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<tr class="memdesc:a804b895121a4e04bc491f41a5821a13e"><td class="mdescLeft"> </td><td class="mdescRight">Returns the capacity of the sponge function in bits. <a href="#a804b895121a4e04bc491f41a5821a13e">More...</a><br/></td></tr>
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<tr class="separator:a804b895121a4e04bc491f41a5821a13e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ab3c1905f2002e49aca085d6f0b5546f7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#ab3c1905f2002e49aca085d6f0b5546f7">setCapacity</a> (size_t <a class="el" href="classKeccakCore.html#a804b895121a4e04bc491f41a5821a13e">capacity</a>)</td></tr>
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<tr class="memdesc:ab3c1905f2002e49aca085d6f0b5546f7"><td class="mdescLeft"> </td><td class="mdescRight">Sets the capacity of the Keccak sponge function in bits. <a href="#ab3c1905f2002e49aca085d6f0b5546f7">More...</a><br/></td></tr>
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<tr class="separator:ab3c1905f2002e49aca085d6f0b5546f7"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3742ed39151811b5d1c263c75ee5b20a"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a">blockSize</a> () const </td></tr>
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<tr class="memdesc:a3742ed39151811b5d1c263c75ee5b20a"><td class="mdescLeft"> </td><td class="mdescRight">Returns the input block size for the sponge function in bytes. <a href="#a3742ed39151811b5d1c263c75ee5b20a">More...</a><br/></td></tr>
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<tr class="separator:a3742ed39151811b5d1c263c75ee5b20a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5a322eb7e3b5c1eaad127c9c6e6a529b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#a5a322eb7e3b5c1eaad127c9c6e6a529b">reset</a> ()</td></tr>
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<tr class="memdesc:a5a322eb7e3b5c1eaad127c9c6e6a529b"><td class="mdescLeft"> </td><td class="mdescRight">Resets the Keccak sponge function ready for a new session. <a href="#a5a322eb7e3b5c1eaad127c9c6e6a529b">More...</a><br/></td></tr>
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<tr class="separator:a5a322eb7e3b5c1eaad127c9c6e6a529b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aaaa0355ccec0f469ac8eb577bdf853ed"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#aaaa0355ccec0f469ac8eb577bdf853ed">update</a> (const void *data, size_t size)</td></tr>
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<tr class="memdesc:aaaa0355ccec0f469ac8eb577bdf853ed"><td class="mdescLeft"> </td><td class="mdescRight">Updates the Keccak sponge function with more input data. <a href="#aaaa0355ccec0f469ac8eb577bdf853ed">More...</a><br/></td></tr>
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<tr class="separator:aaaa0355ccec0f469ac8eb577bdf853ed"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a97852ee4381ced17ee6d21704cf0b4d7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#a97852ee4381ced17ee6d21704cf0b4d7">pad</a> (uint8_t tag)</td></tr>
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<tr class="memdesc:a97852ee4381ced17ee6d21704cf0b4d7"><td class="mdescLeft"> </td><td class="mdescRight">Pads the last block of input data to <a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a" title="Returns the input block size for the sponge function in bytes. ">blockSize()</a>. <a href="#a97852ee4381ced17ee6d21704cf0b4d7">More...</a><br/></td></tr>
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<tr class="separator:a97852ee4381ced17ee6d21704cf0b4d7"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aad83ece853c0cc15fcab947fdcba924f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#aad83ece853c0cc15fcab947fdcba924f">extract</a> (void *data, size_t size)</td></tr>
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<tr class="memdesc:aad83ece853c0cc15fcab947fdcba924f"><td class="mdescLeft"> </td><td class="mdescRight">Extracts data from the Keccak sponge function. <a href="#aad83ece853c0cc15fcab947fdcba924f">More...</a><br/></td></tr>
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<tr class="separator:aad83ece853c0cc15fcab947fdcba924f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aeff1df56e4a3103c99c1fe4307e60c66"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeff1df56e4a3103c99c1fe4307e60c66"></a>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="classKeccakCore.html#aeff1df56e4a3103c99c1fe4307e60c66">clear</a> ()</td></tr>
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<tr class="memdesc:aeff1df56e4a3103c99c1fe4307e60c66"><td class="mdescLeft"> </td><td class="mdescRight">Clears all sensitive data from this object. <br/></td></tr>
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<tr class="separator:aeff1df56e4a3103c99c1fe4307e60c66"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Keccak core sponge function. </p>
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<p><a class="el" href="classKeccakCore.html" title="Keccak core sponge function. ">KeccakCore</a> provides the core sponge function for different capacities. It is used to implement <a class="el" href="classHash.html" title="Abstract base class for cryptographic hash algorithms. ">Hash</a> algorithms such as SHA3.</p>
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<p>References: <a href="http://en.wikipedia.org/wiki/SHA-3">http://en.wikipedia.org/wiki/SHA-3</a></p>
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<dl class="section see"><dt>See Also</dt><dd>SHA3 </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8h_source.html#l00029">29</a> of file <a class="el" href="KeccakCore_8h_source.html">KeccakCore.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a class="anchor" id="a850c8e85bdb6b347411239716535d9c9"></a>
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<td class="memname">KeccakCore::KeccakCore </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<p>Constructs a new Keccak sponge function. </p>
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<p>The <a class="el" href="classKeccakCore.html#a804b895121a4e04bc491f41a5821a13e" title="Returns the capacity of the sponge function in bits. ">capacity()</a> will initially be set to 1536, which normally won't be of much use to the caller. The constructor should be followed by a call to <a class="el" href="classKeccakCore.html#ab3c1905f2002e49aca085d6f0b5546f7" title="Sets the capacity of the Keccak sponge function in bits. ">setCapacity()</a> to select the capacity of interest. </p>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00049">49</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a class="anchor" id="a3742ed39151811b5d1c263c75ee5b20a"></a>
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<td class="memname">size_t KeccakCore::blockSize </td>
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<td>(</td>
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<td> const</td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>Returns the input block size for the sponge function in bytes. </p>
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<p>The block size is (1600 - <a class="el" href="classKeccakCore.html#a804b895121a4e04bc491f41a5821a13e" title="Returns the capacity of the sponge function in bits. ">capacity()</a>) / 8.</p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#a804b895121a4e04bc491f41a5821a13e" title="Returns the capacity of the sponge function in bits. ">capacity()</a> </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8h_source.html#l00038">38</a> of file <a class="el" href="KeccakCore_8h_source.html">KeccakCore.h</a>.</p>
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<td class="memname">size_t KeccakCore::capacity </td>
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<td> const</td>
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<p>Returns the capacity of the sponge function in bits. </p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#ab3c1905f2002e49aca085d6f0b5546f7" title="Sets the capacity of the Keccak sponge function in bits. ">setCapacity()</a>, <a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a" title="Returns the input block size for the sponge function in bytes. ">blockSize()</a> </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00071">71</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<td class="memname">void KeccakCore::extract </td>
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<td>(</td>
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<td class="paramname"><em>data</em>, </td>
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<p>Extracts data from the Keccak sponge function. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">data</td><td>The data buffer to fill with extracted data. </td></tr>
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<tr><td class="paramname">size</td><td>The number number of bytes of extracted data that are required.</td></tr>
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<p>If more than <a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a" title="Returns the input block size for the sponge function in bytes. ">blockSize()</a> bytes are required, the sponge function will be invoked to generate additional data.</p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#aaaa0355ccec0f469ac8eb577bdf853ed" title="Updates the Keccak sponge function with more input data. ">update()</a>, <a class="el" href="classKeccakCore.html#a5a322eb7e3b5c1eaad127c9c6e6a529b" title="Resets the Keccak sponge function ready for a new session. ">reset()</a>, extractHash() </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00201">201</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<td class="memname">void KeccakCore::pad </td>
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<td>(</td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>tag</em></td><td>)</td>
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<p>Pads the last block of input data to <a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a" title="Returns the input block size for the sponge function in bytes. ">blockSize()</a>. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">tag</td><td>The tag byte to add to the padding to identify SHA3 (0x06), SHAKE (0x1F), or the plain pre-standardized version of Keccak (0x01).</td></tr>
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</dd>
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<p>The sponge function will be invoked to process the completed padding block.</p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#aaaa0355ccec0f469ac8eb577bdf853ed" title="Updates the Keccak sponge function with more input data. ">update()</a>, <a class="el" href="classKeccakCore.html#aad83ece853c0cc15fcab947fdcba924f" title="Extracts data from the Keccak sponge function. ">extract()</a> </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00174">174</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<td class="memname">void KeccakCore::reset </td>
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<p>Resets the Keccak sponge function ready for a new session. </p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#aaaa0355ccec0f469ac8eb577bdf853ed" title="Updates the Keccak sponge function with more input data. ">update()</a>, <a class="el" href="classKeccakCore.html#aad83ece853c0cc15fcab947fdcba924f" title="Extracts data from the Keccak sponge function. ">extract()</a> </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00109">109</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<td class="memname">void KeccakCore::setCapacity </td>
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<td>(</td>
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<td class="paramname"><em>capacity</em></td><td>)</td>
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<p>Sets the capacity of the Keccak sponge function in bits. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">capacity</td><td>The capacity of the Keccak sponge function in bits which should be a multiple of 64 and between 64 and 1536.</td></tr>
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<dl class="section note"><dt>Note</dt><dd>It is possible to create a sponge function with this constructor that doesn't strictly conform with the capacity and hash size constraints defined in the relevant standards. It is the responsibility of callers to only use standard parameter combinations.</dd></dl>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#a804b895121a4e04bc491f41a5821a13e" title="Returns the capacity of the sponge function in bits. ">capacity()</a>, <a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a" title="Returns the input block size for the sponge function in bytes. ">blockSize()</a> </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00089">89</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<td class="memname">void KeccakCore::update </td>
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<td>)</td>
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<p>Updates the Keccak sponge function with more input data. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">data</td><td>The extra input data to incorporate. </td></tr>
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<tr><td class="paramname">size</td><td>The size of the new data to incorporate.</td></tr>
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<p>This function will invoke the sponge function whenever a full <a class="el" href="classKeccakCore.html#a3742ed39151811b5d1c263c75ee5b20a" title="Returns the input block size for the sponge function in bytes. ">blockSize()</a> bytes of input data have been accumulated. Call <a class="el" href="classKeccakCore.html#a97852ee4381ced17ee6d21704cf0b4d7" title="Pads the last block of input data to blockSize(). ">pad()</a> after the last block to finalize the input before calling <a class="el" href="classKeccakCore.html#aad83ece853c0cc15fcab947fdcba924f" title="Extracts data from the Keccak sponge function. ">extract()</a>.</p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classKeccakCore.html#a97852ee4381ced17ee6d21704cf0b4d7" title="Pads the last block of input data to blockSize(). ">pad()</a>, <a class="el" href="classKeccakCore.html#aad83ece853c0cc15fcab947fdcba924f" title="Extracts data from the Keccak sponge function. ">extract()</a>, <a class="el" href="classKeccakCore.html#a5a322eb7e3b5c1eaad127c9c6e6a529b" title="Resets the Keccak sponge function ready for a new session. ">reset()</a> </dd></dl>
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<p>Definition at line <a class="el" href="KeccakCore_8cpp_source.html#l00128">128</a> of file <a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li><a class="el" href="KeccakCore_8h_source.html">KeccakCore.h</a></li>
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<li><a class="el" href="KeccakCore_8cpp_source.html">KeccakCore.cpp</a></li>
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