From a2c99d3270eb73ef2db5704fc54356c6b75096f8 Mon Sep 17 00:00:00 2001 From: lloyd Date: Thu, 18 May 2006 18:33:19 +0000 Subject: Initial checkin --- src/sha_64.cpp | 197 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 197 insertions(+) create mode 100644 src/sha_64.cpp (limited to 'src/sha_64.cpp') diff --git a/src/sha_64.cpp b/src/sha_64.cpp new file mode 100644 index 000000000..a24e13d26 --- /dev/null +++ b/src/sha_64.cpp @@ -0,0 +1,197 @@ +/************************************************* +* SHA-{384,512} Source File * +* (C) 1999-2006 The Botan Project * +*************************************************/ + +#include +#include + +namespace Botan { + +namespace { + +/************************************************* +* SHA-{384,512} Rho Function * +*************************************************/ +inline u64bit rho(u64bit X, u32bit rot1, u32bit rot2, u32bit rot3) + { + return (rotate_right(X, rot1) ^ rotate_right(X, rot2) ^ + rotate_right(X, rot3)); + } + +/************************************************* +* SHA-{384,512} F1 Function * +*************************************************/ +inline void F1(u64bit A, u64bit B, u64bit C, u64bit& D, + u64bit E, u64bit F, u64bit G, u64bit& H, + u64bit msg, u64bit magic) + { + magic += rho(E, 14, 18, 41) + ((E & F) ^ (~E & G)) + msg; + D += magic + H; + H += magic + rho(A, 28, 34, 39) + ((A & B) ^ (A & C) ^ (B & C)); + } + +/************************************************* +* SHA-{384,512} Sigma Function * +*************************************************/ +inline u64bit sigma(u64bit X, u32bit rot1, u32bit rot2, u32bit shift) + { + return (rotate_right(X, rot1) ^ rotate_right(X, rot2) ^ (X >> shift)); + } + +} + +/************************************************* +* SHA-{384,512} Compression Function * +*************************************************/ +void SHA_64_BASE::hash(const byte input[]) + { + for(u32bit j = 0; j != 16; ++j) + W[j] = make_u64bit(input[8*j ], input[8*j+1], input[8*j+2], + input[8*j+3], input[8*j+4], input[8*j+5], + input[8*j+6], input[8*j+7]); + for(u32bit j = 16; j != 80; ++j) + W[j] = sigma(W[j- 2], 19, 61, 6) + W[j- 7] + + sigma(W[j-15], 1, 8, 7) + W[j-16]; + + u64bit A = digest[0], B = digest[1], C = digest[2], + D = digest[3], E = digest[4], F = digest[5], + G = digest[6], H = digest[7]; + + F1(A,B,C,D,E,F,G,H,W[ 0],0x428A2F98D728AE22); + F1(H,A,B,C,D,E,F,G,W[ 1],0x7137449123EF65CD); + F1(G,H,A,B,C,D,E,F,W[ 2],0xB5C0FBCFEC4D3B2F); + F1(F,G,H,A,B,C,D,E,W[ 3],0xE9B5DBA58189DBBC); + F1(E,F,G,H,A,B,C,D,W[ 4],0x3956C25BF348B538); + F1(D,E,F,G,H,A,B,C,W[ 5],0x59F111F1B605D019); + F1(C,D,E,F,G,H,A,B,W[ 6],0x923F82A4AF194F9B); + F1(B,C,D,E,F,G,H,A,W[ 7],0xAB1C5ED5DA6D8118); + F1(A,B,C,D,E,F,G,H,W[ 8],0xD807AA98A3030242); + F1(H,A,B,C,D,E,F,G,W[ 9],0x12835B0145706FBE); + F1(G,H,A,B,C,D,E,F,W[10],0x243185BE4EE4B28C); + F1(F,G,H,A,B,C,D,E,W[11],0x550C7DC3D5FFB4E2); + F1(E,F,G,H,A,B,C,D,W[12],0x72BE5D74F27B896F); + F1(D,E,F,G,H,A,B,C,W[13],0x80DEB1FE3B1696B1); + F1(C,D,E,F,G,H,A,B,W[14],0x9BDC06A725C71235); + F1(B,C,D,E,F,G,H,A,W[15],0xC19BF174CF692694); + F1(A,B,C,D,E,F,G,H,W[16],0xE49B69C19EF14AD2); + F1(H,A,B,C,D,E,F,G,W[17],0xEFBE4786384F25E3); + F1(G,H,A,B,C,D,E,F,W[18],0x0FC19DC68B8CD5B5); + F1(F,G,H,A,B,C,D,E,W[19],0x240CA1CC77AC9C65); + F1(E,F,G,H,A,B,C,D,W[20],0x2DE92C6F592B0275); + F1(D,E,F,G,H,A,B,C,W[21],0x4A7484AA6EA6E483); + F1(C,D,E,F,G,H,A,B,W[22],0x5CB0A9DCBD41FBD4); + F1(B,C,D,E,F,G,H,A,W[23],0x76F988DA831153B5); + F1(A,B,C,D,E,F,G,H,W[24],0x983E5152EE66DFAB); + F1(H,A,B,C,D,E,F,G,W[25],0xA831C66D2DB43210); + F1(G,H,A,B,C,D,E,F,W[26],0xB00327C898FB213F); + F1(F,G,H,A,B,C,D,E,W[27],0xBF597FC7BEEF0EE4); + F1(E,F,G,H,A,B,C,D,W[28],0xC6E00BF33DA88FC2); + F1(D,E,F,G,H,A,B,C,W[29],0xD5A79147930AA725); + F1(C,D,E,F,G,H,A,B,W[30],0x06CA6351E003826F); + F1(B,C,D,E,F,G,H,A,W[31],0x142929670A0E6E70); + F1(A,B,C,D,E,F,G,H,W[32],0x27B70A8546D22FFC); + F1(H,A,B,C,D,E,F,G,W[33],0x2E1B21385C26C926); + F1(G,H,A,B,C,D,E,F,W[34],0x4D2C6DFC5AC42AED); + F1(F,G,H,A,B,C,D,E,W[35],0x53380D139D95B3DF); + F1(E,F,G,H,A,B,C,D,W[36],0x650A73548BAF63DE); + F1(D,E,F,G,H,A,B,C,W[37],0x766A0ABB3C77B2A8); + F1(C,D,E,F,G,H,A,B,W[38],0x81C2C92E47EDAEE6); + F1(B,C,D,E,F,G,H,A,W[39],0x92722C851482353B); + F1(A,B,C,D,E,F,G,H,W[40],0xA2BFE8A14CF10364); + F1(H,A,B,C,D,E,F,G,W[41],0xA81A664BBC423001); + F1(G,H,A,B,C,D,E,F,W[42],0xC24B8B70D0F89791); + F1(F,G,H,A,B,C,D,E,W[43],0xC76C51A30654BE30); + F1(E,F,G,H,A,B,C,D,W[44],0xD192E819D6EF5218); + F1(D,E,F,G,H,A,B,C,W[45],0xD69906245565A910); + F1(C,D,E,F,G,H,A,B,W[46],0xF40E35855771202A); + F1(B,C,D,E,F,G,H,A,W[47],0x106AA07032BBD1B8); + F1(A,B,C,D,E,F,G,H,W[48],0x19A4C116B8D2D0C8); + F1(H,A,B,C,D,E,F,G,W[49],0x1E376C085141AB53); + F1(G,H,A,B,C,D,E,F,W[50],0x2748774CDF8EEB99); + F1(F,G,H,A,B,C,D,E,W[51],0x34B0BCB5E19B48A8); + F1(E,F,G,H,A,B,C,D,W[52],0x391C0CB3C5C95A63); + F1(D,E,F,G,H,A,B,C,W[53],0x4ED8AA4AE3418ACB); + F1(C,D,E,F,G,H,A,B,W[54],0x5B9CCA4F7763E373); + F1(B,C,D,E,F,G,H,A,W[55],0x682E6FF3D6B2B8A3); + F1(A,B,C,D,E,F,G,H,W[56],0x748F82EE5DEFB2FC); + F1(H,A,B,C,D,E,F,G,W[57],0x78A5636F43172F60); + F1(G,H,A,B,C,D,E,F,W[58],0x84C87814A1F0AB72); + F1(F,G,H,A,B,C,D,E,W[59],0x8CC702081A6439EC); + F1(E,F,G,H,A,B,C,D,W[60],0x90BEFFFA23631E28); + F1(D,E,F,G,H,A,B,C,W[61],0xA4506CEBDE82BDE9); + F1(C,D,E,F,G,H,A,B,W[62],0xBEF9A3F7B2C67915); + F1(B,C,D,E,F,G,H,A,W[63],0xC67178F2E372532B); + F1(A,B,C,D,E,F,G,H,W[64],0xCA273ECEEA26619C); + F1(H,A,B,C,D,E,F,G,W[65],0xD186B8C721C0C207); + F1(G,H,A,B,C,D,E,F,W[66],0xEADA7DD6CDE0EB1E); + F1(F,G,H,A,B,C,D,E,W[67],0xF57D4F7FEE6ED178); + F1(E,F,G,H,A,B,C,D,W[68],0x06F067AA72176FBA); + F1(D,E,F,G,H,A,B,C,W[69],0x0A637DC5A2C898A6); + F1(C,D,E,F,G,H,A,B,W[70],0x113F9804BEF90DAE); + F1(B,C,D,E,F,G,H,A,W[71],0x1B710B35131C471B); + F1(A,B,C,D,E,F,G,H,W[72],0x28DB77F523047D84); + F1(H,A,B,C,D,E,F,G,W[73],0x32CAAB7B40C72493); + F1(G,H,A,B,C,D,E,F,W[74],0x3C9EBE0A15C9BEBC); + F1(F,G,H,A,B,C,D,E,W[75],0x431D67C49C100D4C); + F1(E,F,G,H,A,B,C,D,W[76],0x4CC5D4BECB3E42B6); + F1(D,E,F,G,H,A,B,C,W[77],0x597F299CFC657E2A); + F1(C,D,E,F,G,H,A,B,W[78],0x5FCB6FAB3AD6FAEC); + F1(B,C,D,E,F,G,H,A,W[79],0x6C44198C4A475817); + + digest[0] += A; digest[1] += B; digest[2] += C; + digest[3] += D; digest[4] += E; digest[5] += F; + digest[6] += G; digest[7] += H; + } + +/************************************************* +* Copy out the digest * +*************************************************/ +void SHA_64_BASE::copy_out(byte output[]) + { + for(u32bit j = 0; j != OUTPUT_LENGTH; ++j) + output[j] = get_byte(j % 8, digest[j/8]); + } + +/************************************************* +* Clear memory of sensitive data * +*************************************************/ +void SHA_64_BASE::clear() throw() + { + MDx_HashFunction::clear(); + W.clear(); + } + +/************************************************* +* Clear memory of sensitive data * +*************************************************/ +void SHA_384::clear() throw() + { + SHA_64_BASE::clear(); + digest[0] = 0xCBBB9D5DC1059ED8; + digest[1] = 0x629A292A367CD507; + digest[2] = 0x9159015A3070DD17; + digest[3] = 0x152FECD8F70E5939; + digest[4] = 0x67332667FFC00B31; + digest[5] = 0x8EB44A8768581511; + digest[6] = 0xDB0C2E0D64F98FA7; + digest[7] = 0x47B5481DBEFA4FA4; + } + +/************************************************* +* Clear memory of sensitive data * +*************************************************/ +void SHA_512::clear() throw() + { + SHA_64_BASE::clear(); + digest[0] = 0x6A09E667F3BCC908; + digest[1] = 0xBB67AE8584CAA73B; + digest[2] = 0x3C6EF372FE94F82B; + digest[3] = 0xA54FF53A5F1D36F1; + digest[4] = 0x510E527FADE682D1; + digest[5] = 0x9B05688C2B3E6C1F; + digest[6] = 0x1F83D9ABFB41BD6B; + digest[7] = 0x5BE0CD19137E2179; + } + +} -- cgit v1.2.3