00001
00002
00003 #include "pch.h"
00004 #include "tiger.h"
00005 #include "misc.h"
00006 #include "cpu.h"
00007
00008 NAMESPACE_BEGIN(CryptoPP)
00009
00010 void Tiger::InitState(HashWordType *state)
00011 {
00012 state[0] = W64LIT(0x0123456789ABCDEF);
00013 state[1] = W64LIT(0xFEDCBA9876543210);
00014 state[2] = W64LIT(0xF096A5B4C3B2E187);
00015 }
00016
00017 void Tiger::TruncatedFinal(byte *hash, size_t size)
00018 {
00019 ThrowIfInvalidTruncatedSize(size);
00020
00021 PadLastBlock(56, 0x01);
00022 CorrectEndianess(m_data, m_data, 56);
00023
00024 m_data[7] = GetBitCountLo();
00025
00026 Transform(m_state, m_data);
00027 CorrectEndianess(m_state, m_state, DigestSize());
00028 memcpy(hash, m_state, size);
00029
00030 Restart();
00031 }
00032
00033 void Tiger::Transform (word64 *digest, const word64 *X)
00034 {
00035 #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && CRYPTOPP_BOOL_X86
00036 if (HasSSE2())
00037 {
00038 #ifdef __GNUC__
00039 __asm__ __volatile__
00040 (
00041 ".intel_syntax noprefix;"
00042 AS1( push ebx)
00043 #else
00044 #if _MSC_VER < 1300
00045 const word64 *t = table;
00046 AS2( mov edx, t)
00047 #else
00048 AS2( lea edx, [table])
00049 #endif
00050 AS2( mov eax, digest)
00051 AS2( mov esi, X)
00052 #endif
00053 AS2( movq mm0, [eax])
00054 AS2( movq mm1, [eax+1*8])
00055 AS2( movq mm5, mm1)
00056 AS2( movq mm2, [eax+2*8])
00057 AS2( movq mm7, [edx+4*2048+0*8])
00058 AS2( movq mm6, [edx+4*2048+1*8])
00059 AS2( mov ecx, esp)
00060 AS2( and esp, 0xfffffff0)
00061 AS2( sub esp, 8*8)
00062 AS1( push ecx)
00063
00064 #define SSE2_round(a,b,c,x,mul) \
00065 AS2( pxor c, [x])\
00066 AS2( movd ecx, c)\
00067 AS2( movzx edi, cl)\
00068 AS2( movq mm3, [edx+0*2048+edi*8])\
00069 AS2( movzx edi, ch)\
00070 AS2( movq mm4, [edx+3*2048+edi*8])\
00071 AS2( shr ecx, 16)\
00072 AS2( movzx edi, cl)\
00073 AS2( pxor mm3, [edx+1*2048+edi*8])\
00074 AS2( movzx edi, ch)\
00075 AS2( pxor mm4, [edx+2*2048+edi*8])\
00076 AS3( pextrw ecx, c, 2)\
00077 AS2( movzx edi, cl)\
00078 AS2( pxor mm3, [edx+2*2048+edi*8])\
00079 AS2( movzx edi, ch)\
00080 AS2( pxor mm4, [edx+1*2048+edi*8])\
00081 AS3( pextrw ecx, c, 3)\
00082 AS2( movzx edi, cl)\
00083 AS2( pxor mm3, [edx+3*2048+edi*8])\
00084 AS2( psubq a, mm3)\
00085 AS2( movzx edi, ch)\
00086 AS2( pxor mm4, [edx+0*2048+edi*8])\
00087 AS2( paddq b, mm4)\
00088 SSE2_mul_##mul(b)
00089
00090 #define SSE2_mul_5(b) \
00091 AS2( movq mm3, b)\
00092 AS2( psllq b, 2)\
00093 AS2( paddq b, mm3)
00094
00095 #define SSE2_mul_7(b) \
00096 AS2( movq mm3, b)\
00097 AS2( psllq b, 3)\
00098 AS2( psubq b, mm3)
00099
00100 #define SSE2_mul_9(b) \
00101 AS2( movq mm3, b)\
00102 AS2( psllq b, 3)\
00103 AS2( paddq b, mm3)
00104
00105 #define label2_5 1
00106 #define label2_7 2
00107 #define label2_9 3
00108
00109 #define SSE2_pass(A,B,C,mul,X) \
00110 AS2( xor ebx, ebx)\
00111 ASL(mul)\
00112 SSE2_round(A,B,C,X+0*8+ebx,mul)\
00113 SSE2_round(B,C,A,X+1*8+ebx,mul)\
00114 AS2( cmp ebx, 6*8)\
00115 ASJ( je, label2_##mul, f)\
00116 SSE2_round(C,A,B,X+2*8+ebx,mul)\
00117 AS2( add ebx, 3*8)\
00118 ASJ( jmp, mul, b)\
00119 ASL(label2_##mul)
00120
00121 #define SSE2_key_schedule(Y,X) \
00122 AS2( movq mm3, [X+7*8])\
00123 AS2( pxor mm3, mm6)\
00124 AS2( movq mm4, [X+0*8])\
00125 AS2( psubq mm4, mm3)\
00126 AS2( movq [Y+0*8], mm4)\
00127 AS2( pxor mm4, [X+1*8])\
00128 AS2( movq mm3, mm4)\
00129 AS2( movq [Y+1*8], mm4)\
00130 AS2( paddq mm4, [X+2*8])\
00131 AS2( pxor mm3, mm7)\
00132 AS2( psllq mm3, 19)\
00133 AS2( movq [Y+2*8], mm4)\
00134 AS2( pxor mm3, mm4)\
00135 AS2( movq mm4, [X+3*8])\
00136 AS2( psubq mm4, mm3)\
00137 AS2( movq [Y+3*8], mm4)\
00138 AS2( pxor mm4, [X+4*8])\
00139 AS2( movq mm3, mm4)\
00140 AS2( movq [Y+4*8], mm4)\
00141 AS2( paddq mm4, [X+5*8])\
00142 AS2( pxor mm3, mm7)\
00143 AS2( psrlq mm3, 23)\
00144 AS2( movq [Y+5*8], mm4)\
00145 AS2( pxor mm3, mm4)\
00146 AS2( movq mm4, [X+6*8])\
00147 AS2( psubq mm4, mm3)\
00148 AS2( movq [Y+6*8], mm4)\
00149 AS2( pxor mm4, [X+7*8])\
00150 AS2( movq mm3, mm4)\
00151 AS2( movq [Y+7*8], mm4)\
00152 AS2( paddq mm4, [Y+0*8])\
00153 AS2( pxor mm3, mm7)\
00154 AS2( psllq mm3, 19)\
00155 AS2( movq [Y+0*8], mm4)\
00156 AS2( pxor mm3, mm4)\
00157 AS2( movq mm4, [Y+1*8])\
00158 AS2( psubq mm4, mm3)\
00159 AS2( movq [Y+1*8], mm4)\
00160 AS2( pxor mm4, [Y+2*8])\
00161 AS2( movq mm3, mm4)\
00162 AS2( movq [Y+2*8], mm4)\
00163 AS2( paddq mm4, [Y+3*8])\
00164 AS2( pxor mm3, mm7)\
00165 AS2( psrlq mm3, 23)\
00166 AS2( movq [Y+3*8], mm4)\
00167 AS2( pxor mm3, mm4)\
00168 AS2( movq mm4, [Y+4*8])\
00169 AS2( psubq mm4, mm3)\
00170 AS2( movq [Y+4*8], mm4)\
00171 AS2( pxor mm4, [Y+5*8])\
00172 AS2( movq [Y+5*8], mm4)\
00173 AS2( paddq mm4, [Y+6*8])\
00174 AS2( movq [Y+6*8], mm4)\
00175 AS2( pxor mm4, [edx+4*2048+2*8])\
00176 AS2( movq mm3, [Y+7*8])\
00177 AS2( psubq mm3, mm4)\
00178 AS2( movq [Y+7*8], mm3)
00179
00180 SSE2_pass(mm0, mm1, mm2, 5, esi)
00181 SSE2_key_schedule(esp+4, esi)
00182 SSE2_pass(mm2, mm0, mm1, 7, esp+4)
00183 SSE2_key_schedule(esp+4, esp+4)
00184 SSE2_pass(mm1, mm2, mm0, 9, esp+4)
00185
00186 AS2( pxor mm0, [eax+0*8])
00187 AS2( movq [eax+0*8], mm0)
00188 AS2( psubq mm1, mm5)
00189 AS2( movq [eax+1*8], mm1)
00190 AS2( paddq mm2, [eax+2*8])
00191 AS2( movq [eax+2*8], mm2)
00192
00193 AS1( pop esp)
00194 AS1( emms)
00195 #ifdef __GNUC__
00196 AS1( pop ebx)
00197 ".att_syntax prefix;"
00198 :
00199 : "a" (digest), "S" (X), "d" (table)
00200 : "%ecx", "%edi", "memory", "cc"
00201 );
00202 #endif
00203 }
00204 else
00205 #endif
00206 {
00207 word64 a = digest[0];
00208 word64 b = digest[1];
00209 word64 c = digest[2];
00210 word64 Y[8];
00211
00212 #define t1 (table)
00213 #define t2 (table+256)
00214 #define t3 (table+256*2)
00215 #define t4 (table+256*3)
00216
00217 #define round(a,b,c,x,mul) \
00218 c ^= x; \
00219 a -= t1[GETBYTE(c,0)] ^ t2[GETBYTE(c,2)] ^ t3[GETBYTE(c,4)] ^ t4[GETBYTE(c,6)]; \
00220 b += t4[GETBYTE(c,1)] ^ t3[GETBYTE(c,3)] ^ t2[GETBYTE(c,5)] ^ t1[GETBYTE(c,7)]; \
00221 b *= mul
00222
00223 #define pass(a,b,c,mul,X) {\
00224 int i=0;\
00225 while (true)\
00226 {\
00227 round(a,b,c,X[i+0],mul); \
00228 round(b,c,a,X[i+1],mul); \
00229 if (i==6)\
00230 break;\
00231 round(c,a,b,X[i+2],mul); \
00232 i+=3;\
00233 }}
00234
00235 #define key_schedule(Y,X) \
00236 Y[0] = X[0] - (X[7]^W64LIT(0xA5A5A5A5A5A5A5A5)); \
00237 Y[1] = X[1] ^ Y[0]; \
00238 Y[2] = X[2] + Y[1]; \
00239 Y[3] = X[3] - (Y[2] ^ ((~Y[1])<<19)); \
00240 Y[4] = X[4] ^ Y[3]; \
00241 Y[5] = X[5] + Y[4]; \
00242 Y[6] = X[6] - (Y[5] ^ ((~Y[4])>>23)); \
00243 Y[7] = X[7] ^ Y[6]; \
00244 Y[0] += Y[7]; \
00245 Y[1] -= Y[0] ^ ((~Y[7])<<19); \
00246 Y[2] ^= Y[1]; \
00247 Y[3] += Y[2]; \
00248 Y[4] -= Y[3] ^ ((~Y[2])>>23); \
00249 Y[5] ^= Y[4]; \
00250 Y[6] += Y[5]; \
00251 Y[7] -= Y[6] ^ W64LIT(0x0123456789ABCDEF)
00252
00253 pass(a,b,c,5,X);
00254 key_schedule(Y,X);
00255 pass(c,a,b,7,Y);
00256 key_schedule(Y,Y);
00257 pass(b,c,a,9,Y);
00258
00259 digest[0] = a ^ digest[0];
00260 digest[1] = b - digest[1];
00261 digest[2] = c + digest[2];
00262 }
00263 }
00264
00265 NAMESPACE_END
