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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: sosemanuk.cpp Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul></div><h1>sosemanuk.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// sosemanuk.cpp - written and placed in the public domain by Wei Dai</span><a name="l00002"></a>00002 <a name="l00003"></a>00003 <span class="preprocessor">#include "pch.h"</span><a name="l00004"></a>00004 <span class="preprocessor">#include "sosemanuk.h"</span><a name="l00005"></a>00005 <span class="preprocessor">#include "misc.h"</span><a name="l00006"></a>00006 <span class="preprocessor">#include "cpu.h"</span><a name="l00007"></a>00007 <a name="l00008"></a>00008 <span class="preprocessor">#include "serpentp.h"</span><a name="l00009"></a>00009 <a name="l00010"></a>00010 NAMESPACE_BEGIN(CryptoPP)<a name="l00011"></a>00011 <a name="l00012"></a><a class="code" href="class_sosemanuk_policy.html#2a34d753d4c204691a78f07496645f6b">00012</a> void <a class="code" href="class_sosemanuk_policy.html" title="_">SosemanukPolicy</a>::CipherSetKey(const <a class="code" href="class_name_value_pairs.html" title="interface for retrieving values given their names">NameValuePairs</a> &params, const byte *userKey, <span class="keywordtype">size_t</span> keylen)<a name="l00013"></a>00013 {<a name="l00014"></a>00014 Serpent_KeySchedule(m_key, 24, userKey, keylen);<a name="l00015"></a>00015 }<a name="l00016"></a>00016 <a name="l00017"></a><a class="code" href="class_sosemanuk_policy.html#53bb8603243c70cbcac7de6d6a36bf7e">00017</a> <span class="keywordtype">void</span> <a class="code" href="class_sosemanuk_policy.html#53bb8603243c70cbcac7de6d6a36bf7e">SosemanukPolicy::CipherResynchronize</a>(byte *keystreamBuffer, <span class="keyword">const</span> byte *iv)<a name="l00018"></a>00018 {<a name="l00019"></a>00019 word32 a, b, c, d, e;<a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="keyword">typedef</span> <a class="code" href="struct_block_get_and_put.html">BlockGetAndPut<word32, LittleEndian></a> <a class="code" href="struct_block_get_and_put.html">Block</a>;<a name="l00022"></a>00022 <a class="code" href="struct_block_get_and_put.html#07781cc0817613fe47e8070999cf4b95">Block::Get</a>(iv)(a)(b)(c)(d);<a name="l00023"></a>00023 <a name="l00024"></a>00024 <span class="keyword">const</span> word32 *k = <a class="code" href="class_sosemanuk_policy.html#c0c2156a600c8843cf1117d5720e1559">m_key</a>;<a name="l00025"></a>00025 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=1;<a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="keywordflow">do</span><a name="l00028"></a>00028 {<a name="l00029"></a>00029 beforeS0(KX); beforeS0(S0); afterS0(LT);<a name="l00030"></a>00030 afterS0(KX); afterS0(S1); afterS1(LT);<a name="l00031"></a>00031 <span class="keywordflow">if</span> (i == 3) <span class="comment">// after 18th round</span><a name="l00032"></a>00032 {<a name="l00033"></a>00033 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[4] = b;<a name="l00034"></a>00034 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[5] = e;<a name="l00035"></a>00035 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[10] = c;<a name="l00036"></a>00036 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[11] = a;<a name="l00037"></a>00037 }<a name="l00038"></a>00038 afterS1(KX); afterS1(S2); afterS2(LT);<a name="l00039"></a>00039 afterS2(KX); afterS2(S3); afterS3(LT);<a name="l00040"></a>00040 <span class="keywordflow">if</span> (i == 2) <span class="comment">// after 12th round</span><a name="l00041"></a>00041 {<a name="l00042"></a>00042 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[6] = c;<a name="l00043"></a>00043 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[7] = d;<a name="l00044"></a>00044 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[8] = b;<a name="l00045"></a>00045 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[9] = e;<a name="l00046"></a>00046 }<a name="l00047"></a>00047 afterS3(KX); afterS3(S4); afterS4(LT);<a name="l00048"></a>00048 afterS4(KX); afterS4(S5); afterS5(LT);<a name="l00049"></a>00049 afterS5(KX); afterS5(S6); afterS6(LT);<a name="l00050"></a>00050 afterS6(KX); afterS6(S7); afterS7(LT);<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keywordflow">if</span> (i == 3)<a name="l00053"></a>00053 <span class="keywordflow">break</span>;<a name="l00054"></a>00054 <a name="l00055"></a>00055 ++i;<a name="l00056"></a>00056 c = b;<a name="l00057"></a>00057 b = e;<a name="l00058"></a>00058 e = d;<a name="l00059"></a>00059 d = a;<a name="l00060"></a>00060 a = e;<a name="l00061"></a>00061 k += 32;<a name="l00062"></a>00062 }<a name="l00063"></a>00063 <span class="keywordflow">while</span> (<span class="keyword">true</span>);<a name="l00064"></a>00064 <a name="l00065"></a>00065 afterS7(KX);<a name="l00066"></a>00066 <a name="l00067"></a>00067 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[0] = a;<a name="l00068"></a>00068 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[1] = b;<a name="l00069"></a>00069 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[2] = e;<a name="l00070"></a>00070 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[3] = d;<a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="preprocessor">#define XMUX(c, x, y) (x ^ (y & (0 - (c & 1))))</span><a name="l00073"></a>00073 <span class="preprocessor"></span> <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[11] += XMUX(<a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[10], <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[1], <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[8]);<a name="l00074"></a>00074 <a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[10] = rotlFixed(<a class="code" href="class_sosemanuk_policy.html#996c06115c9de685f45a11789d3f3b76">m_state</a>[10] * 0x54655307, 7);<a name="l00075"></a>00075 }<a name="l00076"></a>00076 <a name="l00077"></a>00077 <span class="keyword">static</span> word32 s_mulTables[512] = {<a name="l00078"></a>00078 <span class="preprocessor">#if CRYPTOPP_BOOL_X86 | CRYPTOPP_BOOL_X64</span><a name="l00079"></a>00079 <span class="preprocessor"></span> 0x00000000, 0xE19FCF12, 0x6B973724, 0x8A08F836, <a name="l00080"></a>00080 0xD6876E48, 0x3718A15A, 0xBD10596C, 0x5C8F967E, <a name="l00081"></a>00081 0x05A7DC90, 0xE4381382, 0x6E30EBB4, 0x8FAF24A6, <a name="l00082"></a>00082 0xD320B2D8, 0x32BF7DCA, 0xB8B785FC, 0x59284AEE, <a name="l00083"></a>00083 0x0AE71189, 0xEB78DE9B, 0x617026AD, 0x80EFE9BF, <a name="l00084"></a>00084 0xDC607FC1, 0x3DFFB0D3, 0xB7F748E5, 0x566887F7, <a name="l00085"></a>00085 0x0F40CD19, 0xEEDF020B, 0x64D7FA3D, 0x8548352F, <a name="l00086"></a>00086 0xD9C7A351, 0x38586C43, 0xB2509475, 0x53CF5B67, <a name="l00087"></a>00087 0x146722BB, 0xF5F8EDA9, 0x7FF0159F, 0x9E6FDA8D, <a name="l00088"></a>00088 0xC2E04CF3, 0x237F83E1, 0xA9777BD7, 0x48E8B4C5, <a name="l00089"></a>00089 0x11C0FE2B, 0xF05F3139, 0x7A57C90F, 0x9BC8061D, <a name="l00090"></a>00090 0xC7479063, 0x26D85F71, 0xACD0A747, 0x4D4F6855, <a name="l00091"></a>00091 0x1E803332, 0xFF1FFC20, 0x75170416, 0x9488CB04, <a name="l00092"></a>00092 0xC8075D7A, 0x29989268, 0xA3906A5E, 0x420FA54C, <a name="l00093"></a>00093 0x1B27EFA2, 0xFAB820B0, 0x70B0D886, 0x912F1794, <a name="l00094"></a>00094 0xCDA081EA, 0x2C3F4EF8, 0xA637B6CE, 0x47A879DC, <a name="l00095"></a>00095 0x28CE44DF, 0xC9518BCD, 0x435973FB, 0xA2C6BCE9, <a name="l00096"></a>00096 0xFE492A97, 0x1FD6E585, 0x95DE1DB3, 0x7441D2A1, <a name="l00097"></a>00097 0x2D69984F, 0xCCF6575D, 0x46FEAF6B, 0xA7616079, <a name="l00098"></a>00098 0xFBEEF607, 0x1A713915, 0x9079C123, 0x71E60E31, <a name="l00099"></a>00099 0x22295556, 0xC3B69A44, 0x49BE6272, 0xA821AD60, <a name="l00100"></a>00100 0xF4AE3B1E, 0x1531F40C, 0x9F390C3A, 0x7EA6C328, <a name="l00101"></a>00101 0x278E89C6, 0xC61146D4, 0x4C19BEE2, 0xAD8671F0, <a name="l00102"></a>00102 0xF109E78E, 0x1096289C, 0x9A9ED0AA, 0x7B011FB8, <a name="l00103"></a>00103 0x3CA96664, 0xDD36A976, 0x573E5140, 0xB6A19E52, <a name="l00104"></a>00104 0xEA2E082C, 0x0BB1C73E, 0x81B93F08, 0x6026F01A, <a name="l00105"></a>00105 0x390EBAF4, 0xD89175E6, 0x52998DD0, 0xB30642C2, <a name="l00106"></a>00106 0xEF89D4BC, 0x0E161BAE, 0x841EE398, 0x65812C8A, <a name="l00107"></a>00107 0x364E77ED, 0xD7D1B8FF, 0x5DD940C9, 0xBC468FDB, <a name="l00108"></a>00108 0xE0C919A5, 0x0156D6B7, 0x8B5E2E81, 0x6AC1E193, <a name="l00109"></a>00109 0x33E9AB7D, 0xD276646F, 0x587E9C59, 0xB9E1534B, <a name="l00110"></a>00110 0xE56EC535, 0x04F10A27, 0x8EF9F211, 0x6F663D03, <a name="l00111"></a>00111 0x50358817, 0xB1AA4705, 0x3BA2BF33, 0xDA3D7021, <a name="l00112"></a>00112 0x86B2E65F, 0x672D294D, 0xED25D17B, 0x0CBA1E69, <a name="l00113"></a>00113 0x55925487, 0xB40D9B95, 0x3E0563A3, 0xDF9AACB1, <a name="l00114"></a>00114 0x83153ACF, 0x628AF5DD, 0xE8820DEB, 0x091DC2F9, <a name="l00115"></a>00115 0x5AD2999E, 0xBB4D568C, 0x3145AEBA, 0xD0DA61A8, <a name="l00116"></a>00116 0x8C55F7D6, 0x6DCA38C4, 0xE7C2C0F2, 0x065D0FE0, <a name="l00117"></a>00117 0x5F75450E, 0xBEEA8A1C, 0x34E2722A, 0xD57DBD38, <a name="l00118"></a>00118 0x89F22B46, 0x686DE454, 0xE2651C62, 0x03FAD370, <a name="l00119"></a>00119 0x4452AAAC, 0xA5CD65BE, 0x2FC59D88, 0xCE5A529A, <a name="l00120"></a>00120 0x92D5C4E4, 0x734A0BF6, 0xF942F3C0, 0x18DD3CD2, ⌨️ 快捷键说明
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