diff options
Diffstat (limited to 'src/hash/sha2_64/sha2_64.cpp')
| -rw-r--r-- | src/hash/sha2_64/sha2_64.cpp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/src/hash/sha2_64/sha2_64.cpp b/src/hash/sha2_64/sha2_64.cpp new file mode 100644 index 000000000..5ca78173c --- /dev/null +++ b/src/hash/sha2_64/sha2_64.cpp @@ -0,0 +1,236 @@ +/* +* SHA-{384,512} +* (C) 1999-2010 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#include <botan/sha2_64.h> +#include <botan/loadstor.h> +#include <botan/rotate.h> + +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 sha2_64_compress(MemoryRegion<u64bit>& W, + MemoryRegion<u64bit>& digest, + const byte input[], u32bit blocks) + { + 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]; + + for(u32bit i = 0; i != blocks; ++i) + { + load_be(&W[0], input, 16); + + for(u32bit j = 16; j != 80; j += 8) + { + W[j ] = sigma(W[j-2], 19, 61, 6) + W[j-7] + sigma(W[j-15], 1, 8, 7) + W[j-16]; + W[j+1] = sigma(W[j-1], 19, 61, 6) + W[j-6] + sigma(W[j-14], 1, 8, 7) + W[j-15]; + W[j+2] = sigma(W[j ], 19, 61, 6) + W[j-5] + sigma(W[j-13], 1, 8, 7) + W[j-14]; + W[j+3] = sigma(W[j+1], 19, 61, 6) + W[j-4] + sigma(W[j-12], 1, 8, 7) + W[j-13]; + W[j+4] = sigma(W[j+2], 19, 61, 6) + W[j-3] + sigma(W[j-11], 1, 8, 7) + W[j-12]; + W[j+5] = sigma(W[j+3], 19, 61, 6) + W[j-2] + sigma(W[j-10], 1, 8, 7) + W[j-11]; + W[j+6] = sigma(W[j+4], 19, 61, 6) + W[j-1] + sigma(W[j- 9], 1, 8, 7) + W[j-10]; + W[j+7] = sigma(W[j+5], 19, 61, 6) + W[j ] + sigma(W[j- 8], 1, 8, 7) + W[j- 9]; + } + + 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); + + A = (digest[0] += A); + B = (digest[1] += B); + C = (digest[2] += C); + D = (digest[3] += D); + E = (digest[4] += E); + F = (digest[5] += F); + G = (digest[6] += G); + H = (digest[7] += H); + + input += 128; + } + } + +} + +/* +* SHA-384 compression function +*/ +void SHA_384::compress_n(const byte input[], u32bit blocks) + { + sha2_64_compress(W, digest, input, blocks); + } + +/* +* Copy out the digest +*/ +void SHA_384::copy_out(byte output[]) + { + for(u32bit j = 0; j != OUTPUT_LENGTH; j += 8) + store_be(digest[j/8], output + j); + } + +/* +* Clear memory of sensitive data +*/ +void SHA_384::clear() + { + MDx_HashFunction::clear(); + zeroise(W); + digest[0] = 0xCBBB9D5DC1059ED8; + digest[1] = 0x629A292A367CD507; + digest[2] = 0x9159015A3070DD17; + digest[3] = 0x152FECD8F70E5939; + digest[4] = 0x67332667FFC00B31; + digest[5] = 0x8EB44A8768581511; + digest[6] = 0xDB0C2E0D64F98FA7; + digest[7] = 0x47B5481DBEFA4FA4; + } + +/* +* SHA-512 compression function +*/ +void SHA_512::compress_n(const byte input[], u32bit blocks) + { + sha2_64_compress(W, digest, input, blocks); + } + +/* +* Copy out the digest +*/ +void SHA_512::copy_out(byte output[]) + { + for(u32bit j = 0; j != OUTPUT_LENGTH; j += 8) + store_be(digest[j/8], output + j); + } + +/* +* Clear memory of sensitive data +*/ +void SHA_512::clear() + { + MDx_HashFunction::clear(); + zeroise(W); + digest[0] = 0x6A09E667F3BCC908; + digest[1] = 0xBB67AE8584CAA73B; + digest[2] = 0x3C6EF372FE94F82B; + digest[3] = 0xA54FF53A5F1D36F1; + digest[4] = 0x510E527FADE682D1; + digest[5] = 0x9B05688C2B3E6C1F; + digest[6] = 0x1F83D9ABFB41BD6B; + digest[7] = 0x5BE0CD19137E2179; + } + +} |