<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.14"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Crypto++: ChaCha8 Struct Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">Crypto++  <span id="projectnumber">7.0</span> </div> <div id="projectbrief">Free C++ class library of cryptographic schemes</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.14 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('',false,false,'search.php','Search'); }); /* @license-end */</script> <div id="main-nav"></div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-types">Public Types</a> | <a href="struct_cha_cha8-members.html">List of all members</a> </div> <div class="headertitle"> <div class="title">ChaCha8 Struct Reference</div> </div> </div><!--header--> <div class="contents"> <p><a class="el" href="struct_cha_cha8.html" title="ChaCha8 stream cipher. ">ChaCha8</a> stream cipher. <a href="struct_cha_cha8.html#details">More...</a></p> <div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"> <img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for ChaCha8:</div> <div id="dynsection-0-summary" class="dynsummary" style="display:block;"> </div> <div id="dynsection-0-content" class="dyncontent" style="display:none;"> <div class="center"> <img src="struct_cha_cha8.png" usemap="#ChaCha8_map" alt=""/> <map id="ChaCha8_map" name="ChaCha8_map"> <area href="struct_cha_cha___info.html" alt="ChaCha_Info< 8 >" shape="rect" coords="229,56,678,80"/> <area href="struct_symmetric_cipher_documentation.html" title="Provides Encryption and Decryption typedefs used by derived classes to implement a symmetric cipher..." alt="SymmetricCipherDocumentation" shape="rect" coords="688,56,1137,80"/> <area href="class_variable_key_length.html" alt="VariableKeyLength< 32, 16, 32, 16, SimpleKeyingInterface::UNIQUE_IV, 8 >" shape="rect" coords="0,0,449,24"/> <area href="class_fixed_rounds.html" title="Inherited by algorithms with fixed number of rounds. " alt="FixedRounds< R >" shape="rect" coords="459,0,908,24"/> </map> </div></div> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a> Public Types</h2></td></tr> <tr class="memitem:a3f4b234b973e54e5db66bf599010bf62"><td class="memItemLeft" align="right" valign="top"><a id="a3f4b234b973e54e5db66bf599010bf62"></a> typedef <a class="el" href="class_symmetric_cipher_final.html">SymmetricCipherFinal</a>< <a class="el" href="class_concrete_policy_holder.html">ConcretePolicyHolder</a>< <a class="el" href="class_cha_cha___policy.html">ChaCha_Policy</a>< 8 >, <a class="el" href="class_additive_cipher_template.html">AdditiveCipherTemplate</a><> >, <a class="el" href="struct_cha_cha___info.html">ChaCha_Info</a>< 8 > > </td><td class="memItemRight" valign="bottom"><b>Encryption</b></td></tr> <tr class="separator:a3f4b234b973e54e5db66bf599010bf62"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a31f0f9175c0dedf1dd22057a0329e8d5"><td class="memItemLeft" align="right" valign="top"><a id="a31f0f9175c0dedf1dd22057a0329e8d5"></a> typedef <a class="el" href="class_symmetric_cipher_final.html">Encryption</a> </td><td class="memItemRight" valign="bottom"><b>Decryption</b></td></tr> <tr class="separator:a31f0f9175c0dedf1dd22057a0329e8d5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="inherit_header pub_types_struct_symmetric_cipher_documentation"><td colspan="2" onclick="javascript:toggleInherit('pub_types_struct_symmetric_cipher_documentation')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="struct_symmetric_cipher_documentation.html">SymmetricCipherDocumentation</a></td></tr> <tr class="memitem:a44854216f0ebd272eddfd7f3877ecb34 inherit pub_types_struct_symmetric_cipher_documentation"><td class="memItemLeft" align="right" valign="top"><a id="a44854216f0ebd272eddfd7f3877ecb34"></a> typedef <a class="el" href="class_symmetric_cipher.html">SymmetricCipher</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_symmetric_cipher_documentation.html#a44854216f0ebd272eddfd7f3877ecb34">Encryption</a></td></tr> <tr class="memdesc:a44854216f0ebd272eddfd7f3877ecb34 inherit pub_types_struct_symmetric_cipher_documentation"><td class="mdescLeft"> </td><td class="mdescRight">implements the <a class="el" href="class_symmetric_cipher.html" title="Interface for one direction (encryption or decryption) of a stream cipher or cipher mode...">SymmetricCipher</a> interface <br /></td></tr> <tr class="separator:a44854216f0ebd272eddfd7f3877ecb34 inherit pub_types_struct_symmetric_cipher_documentation"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a0d5bbe79fd8fb71c0f857bb97b0d1f2f inherit pub_types_struct_symmetric_cipher_documentation"><td class="memItemLeft" align="right" valign="top"><a id="a0d5bbe79fd8fb71c0f857bb97b0d1f2f"></a> typedef <a class="el" href="class_symmetric_cipher.html">SymmetricCipher</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_symmetric_cipher_documentation.html#a0d5bbe79fd8fb71c0f857bb97b0d1f2f">Decryption</a></td></tr> <tr class="memdesc:a0d5bbe79fd8fb71c0f857bb97b0d1f2f inherit pub_types_struct_symmetric_cipher_documentation"><td class="mdescLeft"> </td><td class="mdescRight">implements the <a class="el" href="class_symmetric_cipher.html" title="Interface for one direction (encryption or decryption) of a stream cipher or cipher mode...">SymmetricCipher</a> interface <br /></td></tr> <tr class="separator:a0d5bbe79fd8fb71c0f857bb97b0d1f2f inherit pub_types_struct_symmetric_cipher_documentation"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a> Additional Inherited Members</h2></td></tr> <tr class="inherit_header pub_static_methods_struct_cha_cha___info"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_struct_cha_cha___info')"><img src="closed.png" alt="-"/> Static Public Member Functions inherited from <a class="el" href="struct_cha_cha___info.html">ChaCha_Info< 8 ></a></td></tr> <tr class="memitem:a7e42a12ba9e535be93b1c4d3186ea876 inherit pub_static_methods_struct_cha_cha___info"><td class="memItemLeft" align="right" valign="top"><a id="a7e42a12ba9e535be93b1c4d3186ea876"></a> static const char * </td><td class="memItemRight" valign="bottom"><b>StaticAlgorithmName</b> ()</td></tr> <tr class="separator:a7e42a12ba9e535be93b1c4d3186ea876 inherit pub_static_methods_struct_cha_cha___info"><td class="memSeparator" colspan="2"> </td></tr> <tr class="inherit_header pub_static_methods_class_variable_key_length"><td colspan="2" onclick="javascript:toggleInherit('pub_static_methods_class_variable_key_length')"><img src="closed.png" alt="-"/> Static Public Member Functions inherited from <a class="el" href="class_variable_key_length.html">VariableKeyLength< 32, 16, 32, 16, SimpleKeyingInterface::UNIQUE_IV, 8 ></a></td></tr> <tr class="memitem:ae8e35290e09097d8afb9a19386a5f109 inherit pub_static_methods_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#ae8e35290e09097d8afb9a19386a5f109">StaticGetValidKeyLength</a> (size_t keylength)</td></tr> <tr class="memdesc:ae8e35290e09097d8afb9a19386a5f109 inherit pub_static_methods_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">Provides a valid key length for the algorithm provided by a static function. <a href="class_variable_key_length.html#ae8e35290e09097d8afb9a19386a5f109">More...</a><br /></td></tr> <tr class="separator:ae8e35290e09097d8afb9a19386a5f109 inherit pub_static_methods_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="inherit_header pub_static_attribs_class_variable_key_length"><td colspan="2" onclick="javascript:toggleInherit('pub_static_attribs_class_variable_key_length')"><img src="closed.png" alt="-"/> Static Public Attributes inherited from <a class="el" href="class_variable_key_length.html">VariableKeyLength< 32, 16, 32, 16, SimpleKeyingInterface::UNIQUE_IV, 8 ></a></td></tr> <tr class="memitem:aff5e41e92f02a8bb6a976b748e4e2ec9 inherit pub_static_attribs_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#aff5e41e92f02a8bb6a976b748e4e2ec9">MIN_KEYLENGTH</a></td></tr> <tr class="memdesc:aff5e41e92f02a8bb6a976b748e4e2ec9 inherit pub_static_attribs_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">The minimum key length used by the algorithm provided as a constant. <a href="class_variable_key_length.html#aff5e41e92f02a8bb6a976b748e4e2ec9">More...</a><br /></td></tr> <tr class="separator:aff5e41e92f02a8bb6a976b748e4e2ec9 inherit pub_static_attribs_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a26f33392d61edcaa678ae65002842d36 inherit pub_static_attribs_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#a26f33392d61edcaa678ae65002842d36">MAX_KEYLENGTH</a></td></tr> <tr class="memdesc:a26f33392d61edcaa678ae65002842d36 inherit pub_static_attribs_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">The maximum key length used by the algorithm provided as a constant. <a href="class_variable_key_length.html#a26f33392d61edcaa678ae65002842d36">More...</a><br /></td></tr> <tr class="separator:a26f33392d61edcaa678ae65002842d36 inherit pub_static_attribs_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a3788ee30b190bdc0c0e89d2721162614 inherit pub_static_attribs_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#a3788ee30b190bdc0c0e89d2721162614">DEFAULT_KEYLENGTH</a></td></tr> <tr class="memdesc:a3788ee30b190bdc0c0e89d2721162614 inherit pub_static_attribs_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">The default key length used by the algorithm provided as a constant. <a href="class_variable_key_length.html#a3788ee30b190bdc0c0e89d2721162614">More...</a><br /></td></tr> <tr class="separator:a3788ee30b190bdc0c0e89d2721162614 inherit pub_static_attribs_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:acaa6d8918bbd17c2da84e752df7bd285 inherit pub_static_attribs_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#acaa6d8918bbd17c2da84e752df7bd285">KEYLENGTH_MULTIPLE</a></td></tr> <tr class="memdesc:acaa6d8918bbd17c2da84e752df7bd285 inherit pub_static_attribs_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">The key length multiple used by the algorithm provided as a constant. <a href="class_variable_key_length.html#acaa6d8918bbd17c2da84e752df7bd285">More...</a><br /></td></tr> <tr class="separator:acaa6d8918bbd17c2da84e752df7bd285 inherit pub_static_attribs_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aefee62ae9b6dd90ede7211844235fc7b inherit pub_static_attribs_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#aefee62ae9b6dd90ede7211844235fc7b">IV_REQUIREMENT</a></td></tr> <tr class="memdesc:aefee62ae9b6dd90ede7211844235fc7b inherit pub_static_attribs_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">The default IV requirements for the algorithm provided as a constant. <a href="class_variable_key_length.html#aefee62ae9b6dd90ede7211844235fc7b">More...</a><br /></td></tr> <tr class="separator:aefee62ae9b6dd90ede7211844235fc7b inherit pub_static_attribs_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ae5687e4a40c5289764feac86eed81cc2 inherit pub_static_attribs_class_variable_key_length"><td class="memItemLeft" align="right" valign="top">static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_variable_key_length.html#ae5687e4a40c5289764feac86eed81cc2">IV_LENGTH</a></td></tr> <tr class="memdesc:ae5687e4a40c5289764feac86eed81cc2 inherit pub_static_attribs_class_variable_key_length"><td class="mdescLeft"> </td><td class="mdescRight">The default initialization vector length for the algorithm provided as a constant. <a href="class_variable_key_length.html#ae5687e4a40c5289764feac86eed81cc2">More...</a><br /></td></tr> <tr class="separator:ae5687e4a40c5289764feac86eed81cc2 inherit pub_static_attribs_class_variable_key_length"><td class="memSeparator" colspan="2"> </td></tr> <tr class="inherit_header pub_static_attribs_class_fixed_rounds"><td colspan="2" onclick="javascript:toggleInherit('pub_static_attribs_class_fixed_rounds')"><img src="closed.png" alt="-"/> Static Public Attributes inherited from <a class="el" href="class_fixed_rounds.html">FixedRounds< R ></a></td></tr> <tr class="memitem:a910701ff30c578368793f5faae246108 inherit pub_static_attribs_class_fixed_rounds"><td class="memItemLeft" align="right" valign="top"><a id="a910701ff30c578368793f5faae246108"></a> static const int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_fixed_rounds.html#a910701ff30c578368793f5faae246108">ROUNDS</a> = R</td></tr> <tr class="memdesc:a910701ff30c578368793f5faae246108 inherit pub_static_attribs_class_fixed_rounds"><td class="mdescLeft"> </td><td class="mdescRight">The number of rounds for the algorithm provided as a constant. <br /></td></tr> <tr class="separator:a910701ff30c578368793f5faae246108 inherit pub_static_attribs_class_fixed_rounds"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p><a class="el" href="struct_cha_cha8.html" title="ChaCha8 stream cipher. ">ChaCha8</a> stream cipher. </p> <dl class="section see"><dt>See also</dt><dd><a href="http://cr.yp.to/chacha/chacha-20080128.pdf">ChaCha, a variant of Salsa20</a> (2008.01.28). </dd></dl> <dl class="section since"><dt>Since</dt><dd>Crypto++ 5.6.4 </dd></dl> <p class="definition">Definition at line <a class="el" href="chacha_8h_source.html#l00053">53</a> of file <a class="el" href="chacha_8h_source.html">chacha.h</a>.</p> </div><hr/>The documentation for this struct was generated from the following file:<ul> <li><a class="el" href="chacha_8h_source.html">chacha.h</a></li> </ul> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Sun Sep 16 2018 07:58:20 for Crypto++ by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.14 </small></address> </body> </html>