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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++: tiger.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>tiger.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// tiger.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 "tiger.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">#ifdef WORD64_AVAILABLE</span><a name="l00009"></a>00009 <span class="preprocessor"></span><a name="l00010"></a>00010 NAMESPACE_BEGIN(CryptoPP)<a name="l00011"></a>00011 <a name="l00012"></a><a class="code" href="class_tiger.html#b0e40ae9b1eebc8fe97cd9a7902ceebd">00012</a> void <a class="code" href="class_tiger.html" title="Tiger">Tiger</a>::InitState(HashWordType *state)<a name="l00013"></a>00013 {<a name="l00014"></a>00014 state[0] = W64LIT(0x0123456789ABCDEF);<a name="l00015"></a>00015 state[1] = W64LIT(0xFEDCBA9876543210);<a name="l00016"></a>00016 state[2] = W64LIT(0xF096A5B4C3B2E187);<a name="l00017"></a>00017 }<a name="l00018"></a>00018 <a name="l00019"></a><a class="code" href="class_tiger.html#ffeb68f52e6c884d64e75027e89ff43d">00019</a> <span class="keywordtype">void</span> <a class="code" href="class_tiger.html#ffeb68f52e6c884d64e75027e89ff43d" title="truncated version of Final()">Tiger::TruncatedFinal</a>(byte *hash, <span class="keywordtype">size_t</span> size)<a name="l00020"></a>00020 {<a name="l00021"></a>00021 <a class="code" href="class_hash_transformation.html#64ba03d31c489dc32b50e00d377d8032">ThrowIfInvalidTruncatedSize</a>(size);<a name="l00022"></a>00022 <a name="l00023"></a>00023 <a class="code" href="class_iterated_hash_base.html#01f39339fa69510303ad401245df1037">PadLastBlock</a>(56, 0x01);<a name="l00024"></a>00024 <a class="code" href="class_iterated_hash.html#394a6ed0dd2a885652cd203ad4fa5fe0">CorrectEndianess</a>(<a class="code" href="class_iterated_hash.html#d1d059e2cba2115f403befa9e6c070da">m_data</a>, <a class="code" href="class_iterated_hash.html#d1d059e2cba2115f403befa9e6c070da">m_data</a>, 56);<a name="l00025"></a>00025 <a name="l00026"></a>00026 <a class="code" href="class_iterated_hash.html#d1d059e2cba2115f403befa9e6c070da">m_data</a>[7] = <a class="code" href="class_iterated_hash_base.html#a2dadd15d5ef537cf6e0286f42ab62c8">GetBitCountLo</a>();<a name="l00027"></a>00027 <a name="l00028"></a>00028 <a class="code" href="class_tiger.html#64ee60dc2b2d280add523aeee742174d">Transform</a>(<a class="code" href="class_iterated_hash_with_static_transform.html#90c715c25bcbb9978a083b3da3c73013">m_state</a>, <a class="code" href="class_iterated_hash.html#d1d059e2cba2115f403befa9e6c070da">m_data</a>);<a name="l00029"></a>00029 <a class="code" href="class_iterated_hash.html#394a6ed0dd2a885652cd203ad4fa5fe0">CorrectEndianess</a>(<a class="code" href="class_iterated_hash_with_static_transform.html#90c715c25bcbb9978a083b3da3c73013">m_state</a>, <a class="code" href="class_iterated_hash_with_static_transform.html#90c715c25bcbb9978a083b3da3c73013">m_state</a>, <a class="code" href="class_iterated_hash_with_static_transform.html#f308600222696a01464a8e93bc2c00c0" title="size of the hash returned by Final()">DigestSize</a>());<a name="l00030"></a>00030 memcpy(hash, <a class="code" href="class_iterated_hash_with_static_transform.html#90c715c25bcbb9978a083b3da3c73013">m_state</a>, size);<a name="l00031"></a>00031 <a name="l00032"></a>00032 <a class="code" href="class_iterated_hash_base.html#d53da712634ea213ad047b2a68b0fe70" title="discard the current state, and restart with a new message">Restart</a>(); <span class="comment">// reinit for next use</span><a name="l00033"></a>00033 }<a name="l00034"></a>00034 <a name="l00035"></a><a class="code" href="class_tiger.html#64ee60dc2b2d280add523aeee742174d">00035</a> <span class="keywordtype">void</span> <a class="code" href="class_tiger.html#64ee60dc2b2d280add523aeee742174d">Tiger::Transform</a> (word64 *digest, <span class="keyword">const</span> word64 *X)<a name="l00036"></a>00036 {<a name="l00037"></a>00037 <span class="preprocessor">#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && CRYPTOPP_BOOL_X86</span><a name="l00038"></a>00038 <span class="preprocessor"></span> <span class="keywordflow">if</span> (HasSSE2())<a name="l00039"></a>00039 {<a name="l00040"></a>00040 <span class="preprocessor">#ifdef __GNUC__</span><a name="l00041"></a>00041 <span class="preprocessor"></span> __asm__ __volatile__<a name="l00042"></a>00042 (<a name="l00043"></a>00043 <span class="stringliteral">".intel_syntax noprefix;"</span><a name="l00044"></a>00044 AS1( push ebx)<a name="l00045"></a>00045 #<span class="keywordflow">else</span><a name="l00046"></a>00046 #<span class="keywordflow">if</span> _MSC_VER < 1300<a name="l00047"></a>00047 <span class="keyword">const</span> word64 *t = <a class="code" href="class_tiger.html#a0ad24ede68615a7243f8549c50be0a4">table</a>;<a name="l00048"></a>00048 AS2( mov edx, t)<a name="l00049"></a>00049 <span class="preprocessor">#else</span><a name="l00050"></a>00050 <span class="preprocessor"></span> AS2( lea edx, [<a class="code" href="class_tiger.html#a0ad24ede68615a7243f8549c50be0a4">table</a>])<a name="l00051"></a>00051 <span class="preprocessor">#endif</span><a name="l00052"></a>00052 <span class="preprocessor"></span> AS2( mov eax, digest)<a name="l00053"></a>00053 AS2( mov esi, X)<a name="l00054"></a>00054 <span class="preprocessor">#endif</span><a name="l00055"></a>00055 <span class="preprocessor"></span> AS2( movq mm0, [eax])<a name="l00056"></a>00056 AS2( movq mm1, [eax+1*8])<a name="l00057"></a>00057 AS2( movq mm5, mm1)<a name="l00058"></a>00058 AS2( movq mm2, [eax+2*8])<a name="l00059"></a>00059 AS2( movq mm7, [edx+4*2048+0*8])<a name="l00060"></a>00060 AS2( movq mm6, [edx+4*2048+1*8])<a name="l00061"></a>00061 AS2( mov ecx, esp)<a name="l00062"></a>00062 AS2( and esp, 0xfffffff0)<a name="l00063"></a>00063 AS2( sub esp, 8*8)<a name="l00064"></a>00064 AS1( push ecx)<a name="l00065"></a>00065 <a name="l00066"></a>00066 <span class="preprocessor">#define SSE2_round(a,b,c,x,mul) \</span><a name="l00067"></a>00067 <span class="preprocessor"> AS2( pxor c, [x])\</span><a name="l00068"></a>00068 <span class="preprocessor"> AS2( movd ecx, c)\</span><a name="l00069"></a>00069 <span class="preprocessor"> AS2( movzx edi, cl)\</span><a name="l00070"></a>00070 <span class="preprocessor"> AS2( movq mm3, [edx+0*2048+edi*8])\</span><a name="l00071"></a>00071 <span class="preprocessor"> AS2( movzx edi, ch)\</span><a name="l00072"></a>00072 <span class="preprocessor"> AS2( movq mm4, [edx+3*2048+edi*8])\</span><a name="l00073"></a>00073 <span class="preprocessor"> AS2( shr ecx, 16)\</span><a name="l00074"></a>00074 <span class="preprocessor"> AS2( movzx edi, cl)\</span><a name="l00075"></a>00075 <span class="preprocessor"> AS2( pxor mm3, [edx+1*2048+edi*8])\</span><a name="l00076"></a>00076 <span class="preprocessor"> AS2( movzx edi, ch)\</span><a name="l00077"></a>00077 <span class="preprocessor"> AS2( pxor mm4, [edx+2*2048+edi*8])\</span><a name="l00078"></a>00078 <span class="preprocessor"> AS3( pextrw ecx, c, 2)\</span><a name="l00079"></a>00079 <span class="preprocessor"> AS2( movzx edi, cl)\</span><a name="l00080"></a>00080 <span class="preprocessor"> AS2( pxor mm3, [edx+2*2048+edi*8])\</span><a name="l00081"></a>00081 <span class="preprocessor"> AS2( movzx edi, ch)\</span><a name="l00082"></a>00082 <span class="preprocessor"> AS2( pxor mm4, [edx+1*2048+edi*8])\</span><a name="l00083"></a>00083 <span class="preprocessor"> AS3( pextrw ecx, c, 3)\</span><a name="l00084"></a>00084 <span class="preprocessor"> AS2( movzx edi, cl)\</span><a name="l00085"></a>00085 <span class="preprocessor"> AS2( pxor mm3, [edx+3*2048+edi*8])\</span><a name="l00086"></a>00086 <span class="preprocessor"> AS2( psubq a, mm3)\</span><a name="l00087"></a>00087 <span class="preprocessor"> AS2( movzx edi, ch)\</span><a name="l00088"></a>00088 <span class="preprocessor"> AS2( pxor mm4, [edx+0*2048+edi*8])\</span><a name="l00089"></a>00089 <span class="preprocessor"> AS2( paddq b, mm4)\</span><a name="l00090"></a>00090 <span class="preprocessor"> SSE2_mul_##mul(b)</span><a name="l00091"></a>00091 <span class="preprocessor"></span><a name="l00092"></a>00092 <span class="preprocessor">#define SSE2_mul_5(b) \</span><a name="l00093"></a>00093 <span class="preprocessor"> AS2( movq mm3, b)\</span><a name="l00094"></a>00094 <span class="preprocessor"> AS2( psllq b, 2)\</span><a name="l00095"></a>00095 <span class="preprocessor"> AS2( paddq b, mm3)</span><a name="l00096"></a>00096 <span class="preprocessor"></span><a name="l00097"></a>00097 <span class="preprocessor">#define SSE2_mul_7(b) \</span><a name="l00098"></a>00098 <span class="preprocessor"> AS2( movq mm3, b)\</span><a name="l00099"></a>00099 <span class="preprocessor"> AS2( psllq b, 3)\</span><a name="l00100"></a>00100 <span class="preprocessor"> AS2( psubq b, mm3)</span><a name="l00101"></a>00101 <span class="preprocessor"></span><a name="l00102"></a>00102 <span class="preprocessor">#define SSE2_mul_9(b) \</span><a name="l00103"></a>00103 <span class="preprocessor"> AS2( movq mm3, b)\</span><a name="l00104"></a>00104 <span class="preprocessor"> AS2( psllq b, 3)\</span><a name="l00105"></a>00105 <span class="preprocessor"> AS2( paddq b, mm3)</span><a name="l00106"></a>00106 <span class="preprocessor"></span><a name="l00107"></a>00107 <span class="preprocessor">#define label2_5 1</span><a name="l00108"></a>00108 <span class="preprocessor"></span><span class="preprocessor">#define label2_7 2</span><a name="l00109"></a>00109 <span class="preprocessor"></span><span class="preprocessor">#define label2_9 3</span><a name="l00110"></a>00110 <span class="preprocessor"></span><a name="l00111"></a>00111 <span class="preprocessor">#define SSE2_pass(A,B,C,mul,X) \</span><a name="l00112"></a>00112 <span class="preprocessor"> AS2( xor ebx, ebx)\</span><a name="l00113"></a>00113 <span class="preprocessor"> ASL(mul)\</span><a name="l00114"></a>00114 <span class="preprocessor"> SSE2_round(A,B,C,X+0*8+ebx,mul)\</span><a name="l00115"></a>00115 <span class="preprocessor"> SSE2_round(B,C,A,X+1*8+ebx,mul)\</span><a name="l00116"></a>00116 <span class="preprocessor"> AS2( cmp ebx, 6*8)\</span><a name="l00117"></a>00117 <span class="preprocessor"> ASJ( je, label2_##mul, f)\</span><a name="l00118"></a>00118 <span class="preprocessor"> SSE2_round(C,A,B,X+2*8+ebx,mul)\</span><a name="l00119"></a>00119 <span class="preprocessor"> AS2( add ebx, 3*8)\</span><a name="l00120"></a>00120 <span class="preprocessor"> ASJ( jmp, mul, b)\</span><a name="l00121"></a>00121 <span class="preprocessor"> ASL(label2_##mul)</span><a name="l00122"></a>00122 <span class="preprocessor"></span><a name="l00123"></a>00123 <span class="preprocessor">#define SSE2_key_schedule(Y,X) \</span><a name="l00124"></a>00124 <span class="preprocessor"> AS2( movq mm3, [X+7*8])\</span><a name="l00125"></a>00125 <span class="preprocessor"> AS2( pxor mm3, mm6)\</span><a name="l00126"></a>00126 <span class="preprocessor"> AS2( movq mm4, [X+0*8])\</span><a name="l00127"></a>00127 <span class="preprocessor"> AS2( psubq mm4, mm3)\</span>⌨️ 快捷键说明
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