diff options
| -rw-r--r-- | src/sha160.cpp | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/sha160.cpp b/src/sha160.cpp index 359d0a790..5d9afb684 100644 --- a/src/sha160.cpp +++ b/src/sha160.cpp @@ -54,10 +54,21 @@ inline void F4(u32bit A, u32bit& B, u32bit C, u32bit D, u32bit& E, u32bit msg) *************************************************/ void SHA_160::hash(const byte input[]) { - for(u32bit j = 0; j != 16; ++j) - W[j] = load_be<u32bit>(input, j); - for(u32bit j = 16; j != 80; ++j) - W[j] = rotate_left((W[j-3] ^ W[j-8] ^ W[j-14] ^ W[j-16]), 1); + for(u32bit j = 0; j != 16; j += 4) + { + W[j ] = load_be<u32bit>(input, j); + W[j+1] = load_be<u32bit>(input, j+1); + W[j+2] = load_be<u32bit>(input, j+2); + W[j+3] = load_be<u32bit>(input, j+3); + } + + for(u32bit j = 16; j != 80; j += 4) + { + W[j ] = rotate_left((W[j-3] ^ W[j-8] ^ W[j-14] ^ W[j-16]), 1); + W[j+1] = rotate_left((W[j-2] ^ W[j-7] ^ W[j-13] ^ W[j-15]), 1); + W[j+2] = rotate_left((W[j-1] ^ W[j-6] ^ W[j-12] ^ W[j-14]), 1); + W[j+3] = rotate_left((W[j ] ^ W[j-5] ^ W[j-11] ^ W[j-13]), 1); + } u32bit A = digest[0], B = digest[1], C = digest[2], D = digest[3], E = digest[4]; |