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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++: wake.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>wake.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// wake.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 "wake.h"</span><a name="l00005"></a>00005 <a name="l00006"></a>00006 NAMESPACE_BEGIN(CryptoPP)<a name="l00007"></a>00007 <a name="l00008"></a>00008 void WAKE_TestInstantiations()<a name="l00009"></a>00009 {<a name="l00010"></a>00010 <a class="code" href="struct_weak_1_1_w_a_k_e___c_f_b.html" title="WAKE-CFB-BE">Weak::WAKE_CFB<>::Encryption</a> x1;<a name="l00011"></a>00011 <a class="code" href="struct_weak_1_1_w_a_k_e___c_f_b.html" title="WAKE-CFB-BE">Weak::WAKE_CFB<>::Decryption</a> x3;<a name="l00012"></a>00012 <a class="code" href="struct_w_a_k_e___o_f_b.html" title="WAKE-OFB.">WAKE_OFB<>::Encryption</a> x2;<a name="l00013"></a>00013 <a class="code" href="struct_w_a_k_e___o_f_b.html" title="WAKE-OFB.">WAKE_OFB<>::Decryption</a> x4;<a name="l00014"></a>00014 }<a name="l00015"></a>00015 <a name="l00016"></a><a class="code" href="class_w_a_k_e___base.html#218ffc8439a10e4415c8d421ebed882f">00016</a> <span class="keyword">inline</span> word32 <a class="code" href="class_w_a_k_e___base.html#218ffc8439a10e4415c8d421ebed882f">WAKE_Base::M</a>(word32 x, word32 y)<a name="l00017"></a>00017 {<a name="l00018"></a>00018 word32 w = x+y;<a name="l00019"></a>00019 <span class="keywordflow">return</span> (w>>8) ^ <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[(byte)w];<a name="l00020"></a>00020 }<a name="l00021"></a>00021 <a name="l00022"></a><a class="code" href="class_w_a_k_e___base.html#fb30b5fddf84936e0a6a62a62cf4bb6e">00022</a> <span class="keywordtype">void</span> <a class="code" href="class_w_a_k_e___base.html#fb30b5fddf84936e0a6a62a62cf4bb6e">WAKE_Base::GenKey</a>(word32 k0, word32 k1, word32 k2, word32 k3)<a name="l00023"></a>00023 {<a name="l00024"></a>00024 <span class="keywordtype">long</span> x, z;<a name="l00025"></a>00025 <span class="keywordtype">int</span> p ;<a name="l00026"></a>00026 <span class="keyword">static</span> <span class="keywordtype">long</span> tt[10]= {<a name="l00027"></a>00027 0x726a8f3bL, <span class="comment">// table</span><a name="l00028"></a>00028 0xe69a3b5cL,<a name="l00029"></a>00029 0xd3c71fe5L,<a name="l00030"></a>00030 0xab3c73d2L,<a name="l00031"></a>00031 0x4d3a8eb3L,<a name="l00032"></a>00032 0x0396d6e8L,<a name="l00033"></a>00033 0x3d4c2f7aL,<a name="l00034"></a>00034 0x9ee27cf3L, } ;<a name="l00035"></a>00035 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[0] = k0;<a name="l00036"></a>00036 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[1] = k1;<a name="l00037"></a>00037 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[2] = k2;<a name="l00038"></a>00038 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[3] = k3;<a name="l00039"></a>00039 <span class="keywordflow">for</span> (p=4 ; p<256 ; p++)<a name="l00040"></a>00040 {<a name="l00041"></a>00041 x=<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p-4]+<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p-1] ; <span class="comment">// fill t</span><a name="l00042"></a>00042 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p]= (x>>3) ^ tt[byte(x&7)] ;<a name="l00043"></a>00043 }<a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="keywordflow">for</span> (p=0 ; p<23 ; p++)<a name="l00046"></a>00046 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p]+=<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p+89] ; <span class="comment">// mix first entries</span><a name="l00047"></a>00047 x=<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[33] ; z=<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[59] | 0x01000001L ;<a name="l00048"></a>00048 z=z&0xff7fffffL ;<a name="l00049"></a>00049 <span class="keywordflow">for</span> (p=0 ; p<256 ; p++) { <span class="comment">//change top byte to</span><a name="l00050"></a>00050 x=(x&0xff7fffffL)+z ; <span class="comment">// a permutation etc</span><a name="l00051"></a>00051 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p]=(<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[p] & 0x00ffffffL) ^ x ; }<a name="l00052"></a>00052 <a name="l00053"></a>00053 <a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[256]=<a class="code" href="class_w_a_k_e___base.html#ecb148b270b8b42cc734a3f0e5494c03">t</a>[0] ;<a name="l00054"></a>00054 byte y=byte(x);<a name="l00055"></a>00055 <span class="keywordflow">for</span> (p=0 ; p<256 ; p++) { <span class="comment">// further change perm.</span>⌨️ 快捷键说明
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