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Diffstat (limited to 'sha.cpp')
-rw-r--r-- | sha.cpp | 554 |
1 files changed, 0 insertions, 554 deletions
diff --git a/sha.cpp b/sha.cpp deleted file mode 100644 index e691674673..0000000000 --- a/sha.cpp +++ /dev/null @@ -1,554 +0,0 @@ -// This file is public domain -// SHA routines extracted as a standalone file from: -// Crypto++: a C++ Class Library of Cryptographic Schemes -// Version 5.5.2 (9/24/2007) -// http://www.cryptopp.com - -// sha.cpp - modified by Wei Dai from Steve Reid's public domain sha1.c - -// Steve Reid implemented SHA-1. Wei Dai implemented SHA-2. -// Both are in the public domain. - -#include <assert.h> -#include <memory.h> -#include "sha.h" - -namespace CryptoPP -{ - -// start of Steve Reid's code - -#define blk0(i) (W[i] = data[i]) -#define blk1(i) (W[i&15] = rotlFixed(W[(i+13)&15]^W[(i+8)&15]^W[(i+2)&15]^W[i&15],1)) - -void SHA1::InitState(HashWordType *state) -{ - state[0] = 0x67452301L; - state[1] = 0xEFCDAB89L; - state[2] = 0x98BADCFEL; - state[3] = 0x10325476L; - state[4] = 0xC3D2E1F0L; -} - -#define f1(x,y,z) (z^(x&(y^z))) -#define f2(x,y,z) (x^y^z) -#define f3(x,y,z) ((x&y)|(z&(x|y))) -#define f4(x,y,z) (x^y^z) - -/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ -#define R0(v,w,x,y,z,i) z+=f1(w,x,y)+blk0(i)+0x5A827999+rotlFixed(v,5);w=rotlFixed(w,30); -#define R1(v,w,x,y,z,i) z+=f1(w,x,y)+blk1(i)+0x5A827999+rotlFixed(v,5);w=rotlFixed(w,30); -#define R2(v,w,x,y,z,i) z+=f2(w,x,y)+blk1(i)+0x6ED9EBA1+rotlFixed(v,5);w=rotlFixed(w,30); -#define R3(v,w,x,y,z,i) z+=f3(w,x,y)+blk1(i)+0x8F1BBCDC+rotlFixed(v,5);w=rotlFixed(w,30); -#define R4(v,w,x,y,z,i) z+=f4(w,x,y)+blk1(i)+0xCA62C1D6+rotlFixed(v,5);w=rotlFixed(w,30); - -void SHA1::Transform(word32 *state, const word32 *data) -{ - word32 W[16]; - /* Copy context->state[] to working vars */ - word32 a = state[0]; - word32 b = state[1]; - word32 c = state[2]; - word32 d = state[3]; - word32 e = state[4]; - /* 4 rounds of 20 operations each. Loop unrolled. */ - R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); - R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); - R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); - R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); - R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); - R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); - R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); - R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); - R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); - R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); - R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); - R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); - R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); - R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); - R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); - R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); - R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); - R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); - R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); - R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); - /* Add the working vars back into context.state[] */ - state[0] += a; - state[1] += b; - state[2] += c; - state[3] += d; - state[4] += e; -} - -// end of Steve Reid's code - -// ************************************************************* - -void SHA224::InitState(HashWordType *state) -{ - static const word32 s[8] = {0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4}; - memcpy(state, s, sizeof(s)); -} - -void SHA256::InitState(HashWordType *state) -{ - static const word32 s[8] = {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19}; - memcpy(state, s, sizeof(s)); -} - -static const word32 SHA256_K[64] = { - 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, - 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, - 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, - 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, - 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, - 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, - 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, - 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, - 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, - 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, - 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, - 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, - 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, - 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, - 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, - 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 -}; - -#define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15])) - -#define Ch(x,y,z) (z^(x&(y^z))) -#define Maj(x,y,z) ((x&y)|(z&(x|y))) - -#define a(i) T[(0-i)&7] -#define b(i) T[(1-i)&7] -#define c(i) T[(2-i)&7] -#define d(i) T[(3-i)&7] -#define e(i) T[(4-i)&7] -#define f(i) T[(5-i)&7] -#define g(i) T[(6-i)&7] -#define h(i) T[(7-i)&7] - -#define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+SHA256_K[i+j]+(j?blk2(i):blk0(i));\ - d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i)) - -// for SHA256 -#define S0(x) (rotrFixed(x,2)^rotrFixed(x,13)^rotrFixed(x,22)) -#define S1(x) (rotrFixed(x,6)^rotrFixed(x,11)^rotrFixed(x,25)) -#define s0(x) (rotrFixed(x,7)^rotrFixed(x,18)^(x>>3)) -#define s1(x) (rotrFixed(x,17)^rotrFixed(x,19)^(x>>10)) - -void SHA256::Transform(word32 *state, const word32 *data) -{ - word32 W[16]; - word32 T[8]; - /* Copy context->state[] to working vars */ - memcpy(T, state, sizeof(T)); - /* 64 operations, partially loop unrolled */ - for (unsigned int j=0; j<64; j+=16) - { - R( 0); R( 1); R( 2); R( 3); - R( 4); R( 5); R( 6); R( 7); - R( 8); R( 9); R(10); R(11); - R(12); R(13); R(14); R(15); - } - /* Add the working vars back into context.state[] */ - state[0] += a(0); - state[1] += b(0); - state[2] += c(0); - state[3] += d(0); - state[4] += e(0); - state[5] += f(0); - state[6] += g(0); - state[7] += h(0); -} - -/* -// smaller but slower -void SHA256_Transform(word32 *state, const word32 *data) -{ - word32 T[20]; - word32 W[32]; - unsigned int i = 0, j = 0; - word32 *t = T+8; - - memcpy(t, state, 8*4); - word32 e = t[4], a = t[0]; - - do - { - word32 w = data[j]; - W[j] = w; - w += K[j]; - w += t[7]; - w += S1(e); - w += Ch(e, t[5], t[6]); - e = t[3] + w; - t[3] = t[3+8] = e; - w += S0(t[0]); - a = w + Maj(a, t[1], t[2]); - t[-1] = t[7] = a; - --t; - ++j; - if (j%8 == 0) - t += 8; - } while (j<16); - - do - { - i = j&0xf; - word32 w = s1(W[i+16-2]) + s0(W[i+16-15]) + W[i] + W[i+16-7]; - W[i+16] = W[i] = w; - w += K[j]; - w += t[7]; - w += S1(e); - w += Ch(e, t[5], t[6]); - e = t[3] + w; - t[3] = t[3+8] = e; - w += S0(t[0]); - a = w + Maj(a, t[1], t[2]); - t[-1] = t[7] = a; - - w = s1(W[(i+1)+16-2]) + s0(W[(i+1)+16-15]) + W[(i+1)] + W[(i+1)+16-7]; - W[(i+1)+16] = W[(i+1)] = w; - w += K[j+1]; - w += (t-1)[7]; - w += S1(e); - w += Ch(e, (t-1)[5], (t-1)[6]); - e = (t-1)[3] + w; - (t-1)[3] = (t-1)[3+8] = e; - w += S0((t-1)[0]); - a = w + Maj(a, (t-1)[1], (t-1)[2]); - (t-1)[-1] = (t-1)[7] = a; - - t-=2; - j+=2; - if (j%8 == 0) - t += 8; - } while (j<64); - - state[0] += a; - state[1] += t[1]; - state[2] += t[2]; - state[3] += t[3]; - state[4] += e; - state[5] += t[5]; - state[6] += t[6]; - state[7] += t[7]; -} -*/ - -#undef S0 -#undef S1 -#undef s0 -#undef s1 -#undef R - -// ************************************************************* - -#ifdef WORD64_AVAILABLE - -void SHA384::InitState(HashWordType *state) -{ - static const word64 s[8] = { - W64LIT(0xcbbb9d5dc1059ed8), W64LIT(0x629a292a367cd507), - W64LIT(0x9159015a3070dd17), W64LIT(0x152fecd8f70e5939), - W64LIT(0x67332667ffc00b31), W64LIT(0x8eb44a8768581511), - W64LIT(0xdb0c2e0d64f98fa7), W64LIT(0x47b5481dbefa4fa4)}; - memcpy(state, s, sizeof(s)); -} - -void SHA512::InitState(HashWordType *state) -{ - static const word64 s[8] = { - W64LIT(0x6a09e667f3bcc908), W64LIT(0xbb67ae8584caa73b), - W64LIT(0x3c6ef372fe94f82b), W64LIT(0xa54ff53a5f1d36f1), - W64LIT(0x510e527fade682d1), W64LIT(0x9b05688c2b3e6c1f), - W64LIT(0x1f83d9abfb41bd6b), W64LIT(0x5be0cd19137e2179)}; - memcpy(state, s, sizeof(s)); -} - -CRYPTOPP_ALIGN_DATA(16) static const word64 SHA512_K[80] CRYPTOPP_SECTION_ALIGN16 = { - W64LIT(0x428a2f98d728ae22), W64LIT(0x7137449123ef65cd), - W64LIT(0xb5c0fbcfec4d3b2f), W64LIT(0xe9b5dba58189dbbc), - W64LIT(0x3956c25bf348b538), W64LIT(0x59f111f1b605d019), - W64LIT(0x923f82a4af194f9b), W64LIT(0xab1c5ed5da6d8118), - W64LIT(0xd807aa98a3030242), W64LIT(0x12835b0145706fbe), - W64LIT(0x243185be4ee4b28c), W64LIT(0x550c7dc3d5ffb4e2), - W64LIT(0x72be5d74f27b896f), W64LIT(0x80deb1fe3b1696b1), - W64LIT(0x9bdc06a725c71235), W64LIT(0xc19bf174cf692694), - W64LIT(0xe49b69c19ef14ad2), W64LIT(0xefbe4786384f25e3), - W64LIT(0x0fc19dc68b8cd5b5), W64LIT(0x240ca1cc77ac9c65), - W64LIT(0x2de92c6f592b0275), W64LIT(0x4a7484aa6ea6e483), - W64LIT(0x5cb0a9dcbd41fbd4), W64LIT(0x76f988da831153b5), - W64LIT(0x983e5152ee66dfab), W64LIT(0xa831c66d2db43210), - W64LIT(0xb00327c898fb213f), W64LIT(0xbf597fc7beef0ee4), - W64LIT(0xc6e00bf33da88fc2), W64LIT(0xd5a79147930aa725), - W64LIT(0x06ca6351e003826f), W64LIT(0x142929670a0e6e70), - W64LIT(0x27b70a8546d22ffc), W64LIT(0x2e1b21385c26c926), - W64LIT(0x4d2c6dfc5ac42aed), W64LIT(0x53380d139d95b3df), - W64LIT(0x650a73548baf63de), W64LIT(0x766a0abb3c77b2a8), - W64LIT(0x81c2c92e47edaee6), W64LIT(0x92722c851482353b), - W64LIT(0xa2bfe8a14cf10364), W64LIT(0xa81a664bbc423001), - W64LIT(0xc24b8b70d0f89791), W64LIT(0xc76c51a30654be30), - W64LIT(0xd192e819d6ef5218), W64LIT(0xd69906245565a910), - W64LIT(0xf40e35855771202a), W64LIT(0x106aa07032bbd1b8), - W64LIT(0x19a4c116b8d2d0c8), W64LIT(0x1e376c085141ab53), - W64LIT(0x2748774cdf8eeb99), W64LIT(0x34b0bcb5e19b48a8), - W64LIT(0x391c0cb3c5c95a63), W64LIT(0x4ed8aa4ae3418acb), - W64LIT(0x5b9cca4f7763e373), W64LIT(0x682e6ff3d6b2b8a3), - W64LIT(0x748f82ee5defb2fc), W64LIT(0x78a5636f43172f60), - W64LIT(0x84c87814a1f0ab72), W64LIT(0x8cc702081a6439ec), - W64LIT(0x90befffa23631e28), W64LIT(0xa4506cebde82bde9), - W64LIT(0xbef9a3f7b2c67915), W64LIT(0xc67178f2e372532b), - W64LIT(0xca273eceea26619c), W64LIT(0xd186b8c721c0c207), - W64LIT(0xeada7dd6cde0eb1e), W64LIT(0xf57d4f7fee6ed178), - W64LIT(0x06f067aa72176fba), W64LIT(0x0a637dc5a2c898a6), - W64LIT(0x113f9804bef90dae), W64LIT(0x1b710b35131c471b), - W64LIT(0x28db77f523047d84), W64LIT(0x32caab7b40c72493), - W64LIT(0x3c9ebe0a15c9bebc), W64LIT(0x431d67c49c100d4c), - W64LIT(0x4cc5d4becb3e42b6), W64LIT(0x597f299cfc657e2a), - W64LIT(0x5fcb6fab3ad6faec), W64LIT(0x6c44198c4a475817) -}; - -#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && CRYPTOPP_BOOL_X86 -// put assembly version in separate function, otherwise MSVC 2005 SP1 doesn't generate correct code for the non-assembly version -CRYPTOPP_NAKED static void CRYPTOPP_FASTCALL SHA512_SSE2_Transform(word64 *state, const word64 *data) -{ -#ifdef __GNUC__ - __asm__ __volatile__ - ( - ".intel_syntax noprefix;" - AS1( push ebx) - AS2( mov ebx, eax) -#else - AS1( push ebx) - AS1( push esi) - AS1( push edi) - AS2( lea ebx, SHA512_K) -#endif - - AS2( mov eax, esp) - AS2( and esp, 0xfffffff0) - AS2( sub esp, 27*16) // 17*16 for expanded data, 20*8 for state - AS1( push eax) - AS2( xor eax, eax) - AS2( lea edi, [esp+4+8*8]) // start at middle of state buffer. will decrement pointer each round to avoid copying - AS2( lea esi, [esp+4+20*8+8]) // 16-byte alignment, then add 8 - - AS2( movq mm4, [ecx+0*8]) - AS2( movq [edi+0*8], mm4) - AS2( movq mm0, [ecx+1*8]) - AS2( movq [edi+1*8], mm0) - AS2( movq mm0, [ecx+2*8]) - AS2( movq [edi+2*8], mm0) - AS2( movq mm0, [ecx+3*8]) - AS2( movq [edi+3*8], mm0) - AS2( movq mm5, [ecx+4*8]) - AS2( movq [edi+4*8], mm5) - AS2( movq mm0, [ecx+5*8]) - AS2( movq [edi+5*8], mm0) - AS2( movq mm0, [ecx+6*8]) - AS2( movq [edi+6*8], mm0) - AS2( movq mm0, [ecx+7*8]) - AS2( movq [edi+7*8], mm0) - ASJ( jmp, 0, f) - -#define SSE2_S0_S1(r, a, b, c) \ - AS2( movq mm6, r)\ - AS2( psrlq r, a)\ - AS2( movq mm7, r)\ - AS2( psllq mm6, 64-c)\ - AS2( pxor mm7, mm6)\ - AS2( psrlq r, b-a)\ - AS2( pxor mm7, r)\ - AS2( psllq mm6, c-b)\ - AS2( pxor mm7, mm6)\ - AS2( psrlq r, c-b)\ - AS2( pxor r, mm7)\ - AS2( psllq mm6, b-a)\ - AS2( pxor r, mm6) - -#define SSE2_s0(r, a, b, c) \ - AS2( movdqa xmm6, r)\ - AS2( psrlq r, a)\ - AS2( movdqa xmm7, r)\ - AS2( psllq xmm6, 64-c)\ - AS2( pxor xmm7, xmm6)\ - AS2( psrlq r, b-a)\ - AS2( pxor xmm7, r)\ - AS2( psrlq r, c-b)\ - AS2( pxor r, xmm7)\ - AS2( psllq xmm6, c-a)\ - AS2( pxor r, xmm6) - -#define SSE2_s1(r, a, b, c) \ - AS2( movdqa xmm6, r)\ - AS2( psrlq r, a)\ - AS2( movdqa xmm7, r)\ - AS2( psllq xmm6, 64-c)\ - AS2( pxor xmm7, xmm6)\ - AS2( psrlq r, b-a)\ - AS2( pxor xmm7, r)\ - AS2( psllq xmm6, c-b)\ - AS2( pxor xmm7, xmm6)\ - AS2( psrlq r, c-b)\ - AS2( pxor r, xmm7) - - ASL(SHA512_Round) - // k + w is in mm0, a is in mm4, e is in mm5 - AS2( paddq mm0, [edi+7*8]) // h - AS2( movq mm2, [edi+5*8]) // f - AS2( movq mm3, [edi+6*8]) // g - AS2( pxor mm2, mm3) - AS2( pand mm2, mm5) - SSE2_S0_S1(mm5,14,18,41) - AS2( pxor mm2, mm3) - AS2( paddq mm0, mm2) // h += Ch(e,f,g) - AS2( paddq mm5, mm0) // h += S1(e) - AS2( movq mm2, [edi+1*8]) // b - AS2( movq mm1, mm2) - AS2( por mm2, mm4) - AS2( pand mm2, [edi+2*8]) // c - AS2( pand mm1, mm4) - AS2( por mm1, mm2) - AS2( paddq mm1, mm5) // temp = h + Maj(a,b,c) - AS2( paddq mm5, [edi+3*8]) // e = d + h - AS2( movq [edi+3*8], mm5) - AS2( movq [edi+11*8], mm5) - SSE2_S0_S1(mm4,28,34,39) // S0(a) - AS2( paddq mm4, mm1) // a = temp + S0(a) - AS2( movq [edi-8], mm4) - AS2( movq [edi+7*8], mm4) - AS1( ret) - - // first 16 rounds - ASL(0) - AS2( movq mm0, [edx+eax*8]) - AS2( movq [esi+eax*8], mm0) - AS2( movq [esi+eax*8+16*8], mm0) - AS2( paddq mm0, [ebx+eax*8]) - ASC( call, SHA512_Round) - AS1( inc eax) - AS2( sub edi, 8) - AS2( test eax, 7) - ASJ( jnz, 0, b) - AS2( add edi, 8*8) - AS2( cmp eax, 16) - ASJ( jne, 0, b) - - // rest of the rounds - AS2( movdqu xmm0, [esi+(16-2)*8]) - ASL(1) - // data expansion, W[i-2] already in xmm0 - AS2( movdqu xmm3, [esi]) - AS2( paddq xmm3, [esi+(16-7)*8]) - AS2( movdqa xmm2, [esi+(16-15)*8]) - SSE2_s1(xmm0, 6, 19, 61) - AS2( paddq xmm0, xmm3) - SSE2_s0(xmm2, 1, 7, 8) - AS2( paddq xmm0, xmm2) - AS2( movdq2q mm0, xmm0) - AS2( movhlps xmm1, xmm0) - AS2( paddq mm0, [ebx+eax*8]) - AS2( movlps [esi], xmm0) - AS2( movlps [esi+8], xmm1) - AS2( movlps [esi+8*16], xmm0) - AS2( movlps [esi+8*17], xmm1) - // 2 rounds - ASC( call, SHA512_Round) - AS2( sub edi, 8) - AS2( movdq2q mm0, xmm1) - AS2( paddq mm0, [ebx+eax*8+8]) - ASC( call, SHA512_Round) - // update indices and loop - AS2( add esi, 16) - AS2( add eax, 2) - AS2( sub edi, 8) - AS2( test eax, 7) - ASJ( jnz, 1, b) - // do housekeeping every 8 rounds - AS2( mov esi, 0xf) - AS2( and esi, eax) - AS2( lea esi, [esp+4+20*8+8+esi*8]) - AS2( add edi, 8*8) - AS2( cmp eax, 80) - ASJ( jne, 1, b) - -#define SSE2_CombineState(i) \ - AS2( movq mm0, [edi+i*8])\ - AS2( paddq mm0, [ecx+i*8])\ - AS2( movq [ecx+i*8], mm0) - - SSE2_CombineState(0) - SSE2_CombineState(1) - SSE2_CombineState(2) - SSE2_CombineState(3) - SSE2_CombineState(4) - SSE2_CombineState(5) - SSE2_CombineState(6) - SSE2_CombineState(7) - - AS1( pop esp) - AS1( emms) - -#if defined(__GNUC__) - AS1( pop ebx) - ".att_syntax prefix;" - : - : "a" (SHA512_K), "c" (state), "d" (data) - : "%esi", "%edi", "memory", "cc" - ); -#else - AS1( pop edi) - AS1( pop esi) - AS1( pop ebx) - AS1( ret) -#endif -} -#endif // #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE - -void SHA512::Transform(word64 *state, const word64 *data) -{ -#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && CRYPTOPP_BOOL_X86 - if (HasSSE2()) - { - SHA512_SSE2_Transform(state, data); - return; - } -#endif - -#define S0(x) (rotrFixed(x,28)^rotrFixed(x,34)^rotrFixed(x,39)) -#define S1(x) (rotrFixed(x,14)^rotrFixed(x,18)^rotrFixed(x,41)) -#define s0(x) (rotrFixed(x,1)^rotrFixed(x,8)^(x>>7)) -#define s1(x) (rotrFixed(x,19)^rotrFixed(x,61)^(x>>6)) - -#define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+SHA512_K[i+j]+(j?blk2(i):blk0(i));\ - d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i)) - - word64 W[16]; - word64 T[8]; - /* Copy context->state[] to working vars */ - memcpy(T, state, sizeof(T)); - /* 80 operations, partially loop unrolled */ - for (unsigned int j=0; j<80; j+=16) - { - R( 0); R( 1); R( 2); R( 3); - R( 4); R( 5); R( 6); R( 7); - R( 8); R( 9); R(10); R(11); - R(12); R(13); R(14); R(15); - } - /* Add the working vars back into context.state[] */ - state[0] += a(0); - state[1] += b(0); - state[2] += c(0); - state[3] += d(0); - state[4] += e(0); - state[5] += f(0); - state[6] += g(0); - state[7] += h(0); -} - -#endif - -} |