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dunkaist |
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; libcrash -- cryptographic hash functions |
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; |
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dunkaist |
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; Copyright (C) 2012-2013,2016 Ivan Baravy (dunkaist) |
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dunkaist |
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; |
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; This program is free software: you can redistribute it and/or modify |
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; it under the terms of the GNU General Public License as published by |
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; the Free Software Foundation, either version 3 of the License, or |
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; (at your option) any later version. |
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; |
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; This program is distributed in the hope that it will be useful, |
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; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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; GNU General Public License for more details. |
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; |
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; You should have received a copy of the GNU General Public License |
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; along with this program. If not, see . |
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dunkaist |
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SHA224256_BLOCK_SIZE = 64 |
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SHA224256_INIT_SIZE = 32 |
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SHA224_HASH_SIZE = 28 |
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SHA256_HASH_SIZE = 32 |
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SHA224256_ALIGN = 4 |
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SHA224256_ALIGN_MASK = SHA224256_ALIGN - 1 |
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struct ctx_sha224256 |
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hash rb SHA224256_INIT_SIZE |
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block rb SHA224256_BLOCK_SIZE |
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index rd 1 |
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msglen_0 rd 1 |
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msglen_1 rd 1 |
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ends |
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macro sha224256._.chn x, y, z |
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dunkaist |
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{ |
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dunkaist |
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mov eax, [y] |
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xor eax, [z] |
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and eax, [x] |
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xor eax, [z] |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.maj x, y, z |
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dunkaist |
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{ |
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dunkaist |
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mov eax, [x] |
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xor eax, [y] |
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and eax, [z] |
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mov ecx, [x] |
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and ecx, [y] |
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xor eax, ecx |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.Sigma0 x |
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dunkaist |
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{ |
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dunkaist |
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mov eax, x |
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mov ecx, eax |
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ror ecx, 2 |
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ror eax, 13 |
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xor eax, ecx |
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mov ecx, x |
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ror ecx, 22 |
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xor eax, ecx |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.Sigma1 x |
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dunkaist |
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{ |
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dunkaist |
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mov eax, x |
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mov ecx, eax |
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ror ecx, 6 |
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ror eax, 11 |
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xor eax, ecx |
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mov ecx, x |
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ror ecx, 25 |
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xor eax, ecx |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.sigma0 x |
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dunkaist |
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{ |
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dunkaist |
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mov eax, x |
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mov ecx, eax |
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ror ecx, 7 |
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ror eax, 18 |
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xor eax, ecx |
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mov ecx, x |
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shr ecx, 3 |
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xor eax, ecx |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.sigma1 x |
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dunkaist |
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{ |
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dunkaist |
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mov eax, x |
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mov ecx, eax |
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ror ecx, 17 |
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ror eax, 19 |
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xor eax, ecx |
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mov ecx, x |
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shr ecx, 10 |
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xor eax, ecx |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.recalculate_w n |
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dunkaist |
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{ |
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dunkaist |
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mov edx, [w + ((n-2) and 15)*4] |
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sha224256._.sigma1 edx |
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add eax, [w + ((n-7) and 15)*4] |
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push eax |
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mov edx, [w + ((n-15) and 15)*4] |
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sha224256._.sigma0 edx |
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pop ecx |
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add eax, ecx |
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add [w + (n)*4], eax |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.round a, b, c, d, e, f, g, h, k |
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dunkaist |
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{ |
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dunkaist |
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mov ebx, [h] |
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mov edx, [e] |
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sha224256._.Sigma1 edx |
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dunkaist |
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dunkaist |
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add ebx, eax |
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sha224256._.chn e, f, g |
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dunkaist |
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dunkaist |
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add ebx, eax |
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add ebx, [k] |
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add ebx, edi |
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dunkaist |
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dunkaist |
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add [d], ebx |
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dunkaist |
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dunkaist |
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mov edx, [a] |
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sha224256._.Sigma0 edx |
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add ebx, eax |
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sha224256._.maj a, b, c |
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add eax, ebx |
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mov [h], eax |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.round_1_16 a, b, c, d, e, f, g, h, n |
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dunkaist |
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{ |
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dunkaist |
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mov eax, [esi + (n)*4] |
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bswap eax |
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dunkaist |
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dunkaist |
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mov dword[w + (n)*4], eax |
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mov edi, eax |
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sha224256._.round a, b, c, d, e, f, g, h, (sha256_table + (n)*4) |
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dunkaist |
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} |
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dunkaist |
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macro sha224256._.round_17_64 a, b, c, d, e, f, g, h, n, rep_num |
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dunkaist |
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{ |
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dunkaist |
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sha224256._.recalculate_w n |
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mov edi, [w + (n)*4] |
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sha224256._.round a, b, c, d, e, f, g, h, (sha256_table + (n+16*rep_num)*4) |
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dunkaist |
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} |
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dunkaist |
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proc sha224.init _ctx |
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mov ebx, [_ctx] |
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lea edi, [ebx + ctx_sha224256.hash] |
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mov esi, sha224._.hash_init |
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mov ecx, SHA224256_INIT_SIZE/4 |
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rep movsd |
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xor eax, eax |
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mov [ebx + ctx_sha224256.index], eax |
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mov [ebx + ctx_sha224256.msglen_0], eax |
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mov [ebx + ctx_sha224256.msglen_1], eax |
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ret |
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endp |
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proc sha256.init _ctx |
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mov ebx, [_ctx] |
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lea edi, [ebx + ctx_sha224256.hash] |
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mov esi, sha256._.hash_init |
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mov ecx, SHA224256_INIT_SIZE/4 |
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rep movsd |
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xor eax, eax |
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mov [ebx + ctx_sha224256.index], eax |
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mov [ebx + ctx_sha224256.msglen_0], eax |
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mov [ebx + ctx_sha224256.msglen_1], eax |
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ret |
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endp |
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proc sha224256._.block _hash |
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dunkaist |
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locals |
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dunkaist |
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w rd 64 |
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A rd 1 |
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B rd 1 |
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C rd 1 |
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D rd 1 |
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E rd 1 |
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F rd 1 |
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G rd 1 |
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H rd 1 |
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dunkaist |
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endl |
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dunkaist |
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mov edi, [_hash] |
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mov eax, [edi + 0x00] |
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mov [A], eax |
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mov eax, [edi + 0x04] |
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mov [B], eax |
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mov eax, [edi + 0x08] |
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mov [C], eax |
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mov eax, [edi + 0x0c] |
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mov [D], eax |
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mov eax, [edi + 0x10] |
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mov [E], eax |
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mov eax, [edi + 0x14] |
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mov [F], eax |
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mov eax, [edi + 0x18] |
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mov [G], eax |
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mov eax, [edi + 0x1c] |
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mov [H], eax |
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dunkaist |
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dunkaist |
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sha224256._.round_1_16 A, B, C, D, E, F, G, H, 0 |
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sha224256._.round_1_16 H, A, B, C, D, E, F, G, 1 |
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sha224256._.round_1_16 G, H, A, B, C, D, E, F, 2 |
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sha224256._.round_1_16 F, G, H, A, B, C, D, E, 3 |
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sha224256._.round_1_16 E, F, G, H, A, B, C, D, 4 |
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sha224256._.round_1_16 D, E, F, G, H, A, B, C, 5 |
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sha224256._.round_1_16 C, D, E, F, G, H, A, B, 6 |
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sha224256._.round_1_16 B, C, D, E, F, G, H, A, 7 |
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sha224256._.round_1_16 A, B, C, D, E, F, G, H, 8 |
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sha224256._.round_1_16 H, A, B, C, D, E, F, G, 9 |
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sha224256._.round_1_16 G, H, A, B, C, D, E, F, 10 |
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sha224256._.round_1_16 F, G, H, A, B, C, D, E, 11 |
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sha224256._.round_1_16 E, F, G, H, A, B, C, D, 12 |
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sha224256._.round_1_16 D, E, F, G, H, A, B, C, 13 |
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sha224256._.round_1_16 C, D, E, F, G, H, A, B, 14 |
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sha224256._.round_1_16 B, C, D, E, F, G, H, A, 15 |
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dunkaist |
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repeat 3 |
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dunkaist |
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sha224256._.round_17_64 A, B, C, D, E, F, G, H, 0, % |
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sha224256._.round_17_64 H, A, B, C, D, E, F, G, 1, % |
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sha224256._.round_17_64 G, H, A, B, C, D, E, F, 2, % |
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sha224256._.round_17_64 F, G, H, A, B, C, D, E, 3, % |
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sha224256._.round_17_64 E, F, G, H, A, B, C, D, 4, % |
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sha224256._.round_17_64 D, E, F, G, H, A, B, C, 5, % |
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sha224256._.round_17_64 C, D, E, F, G, H, A, B, 6, % |
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sha224256._.round_17_64 B, C, D, E, F, G, H, A, 7, % |
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sha224256._.round_17_64 A, B, C, D, E, F, G, H, 8, % |
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sha224256._.round_17_64 H, A, B, C, D, E, F, G, 9, % |
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sha224256._.round_17_64 G, H, A, B, C, D, E, F, 10, % |
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sha224256._.round_17_64 F, G, H, A, B, C, D, E, 11, % |
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sha224256._.round_17_64 E, F, G, H, A, B, C, D, 12, % |
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sha224256._.round_17_64 D, E, F, G, H, A, B, C, 13, % |
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sha224256._.round_17_64 C, D, E, F, G, H, A, B, 14, % |
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sha224256._.round_17_64 B, C, D, E, F, G, H, A, 15, % |
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dunkaist |
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end repeat |
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dunkaist |
251 |
mov edi, [_hash] |
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mov eax, [A] |
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add [edi + 0x00], eax |
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mov eax, [B] |
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add [edi + 0x04], eax |
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mov eax, [C] |
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add [edi + 0x08], eax |
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mov eax, [D] |
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add [edi + 0x0c], eax |
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mov eax, [E] |
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add [edi + 0x10], eax |
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mov eax, [F] |
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add [edi + 0x14], eax |
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mov eax, [G] |
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add [edi + 0x18], eax |
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mov eax, [H] |
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add [edi + 0x1c], eax |
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dunkaist |
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dunkaist |
269 |
ret |
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dunkaist |
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endp |
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dunkaist |
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proc sha224256.update _ctx, _msg, _size |
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mov ebx, [_ctx] |
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mov ecx, [_size] |
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add [ebx + ctx_sha224256.msglen_0], ecx |
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adc [ebx + ctx_sha224256.msglen_1], 0 |
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.next_block: |
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mov ebx, [_ctx] |
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mov esi, [_msg] |
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mov eax, [ebx + ctx_sha224256.index] |
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and eax, SHA224256_BLOCK_SIZE-1 |
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jnz .copy_to_buf |
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test esi, SHA224256_ALIGN_MASK |
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jnz .copy_to_buf |
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.no_copy: |
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; data is aligned, hash it in place without copying |
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mov ebx, [_ctx] |
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cmp [_size], SHA224256_BLOCK_SIZE |
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jb .copy_quit |
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lea eax, [ebx + ctx_sha224256.hash] |
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stdcall sha224256._.block, eax |
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sub [_size], SHA224256_BLOCK_SIZE |
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add esi, SHA224256_BLOCK_SIZE ; FIXME |
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jmp .no_copy |
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.copy_to_buf: |
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lea edi, [ebx + ctx_sha224256.block] |
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add edi, eax |
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mov ecx, SHA224256_BLOCK_SIZE |
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sub ecx, eax |
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cmp [_size], ecx |
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jb .copy_quit |
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sub [_size], ecx |
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add [_msg], ecx |
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add [ebx + ctx_sha224256.index], ecx |
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rep movsb |
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lea eax, [ebx + ctx_sha224256.hash] |
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lea esi, [ebx + ctx_sha224256.block] |
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stdcall sha224256._.block, eax |
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jmp .next_block |
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.copy_quit: |
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mov ebx, [_ctx] |
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lea edi, [ebx + ctx_sha224256.block] |
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mov eax, [ebx + ctx_sha224256.index] |
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and eax, SHA224256_BLOCK_SIZE-1 |
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add edi, eax |
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mov ecx, [_size] |
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add [ebx + ctx_sha224256.index], ecx |
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rep movsb |
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.quit: |
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ret |
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endp |
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328 |
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329 |
proc sha224256.final _ctx |
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330 |
mov ebx, [_ctx] |
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lea edi, [ebx + ctx_sha224256.block] |
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332 |
mov ecx, [ebx + ctx_sha224256.msglen_0] |
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333 |
and ecx, SHA224256_BLOCK_SIZE-1 |
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334 |
add edi, ecx |
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335 |
mov byte[edi], 0x80 |
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336 |
inc edi |
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337 |
neg ecx |
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338 |
add ecx, SHA224256_BLOCK_SIZE |
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339 |
cmp ecx, 8 |
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340 |
ja .last |
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341 |
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342 |
dec ecx |
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343 |
xor eax, eax |
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344 |
rep stosb |
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345 |
lea esi, [ebx + ctx_sha224256.block] |
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346 |
lea eax, [ebx + ctx_sha224256.hash] |
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347 |
stdcall sha224256._.block, eax |
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348 |
mov ebx, [_ctx] |
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349 |
lea edi, [ebx + ctx_sha224256.block] |
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350 |
mov ecx, SHA224256_BLOCK_SIZE+1 |
|
|
351 |
.last: |
|
|
352 |
dec ecx |
|
|
353 |
sub ecx, 8 |
|
|
354 |
xor eax, eax |
|
|
355 |
rep stosb |
|
|
356 |
mov eax, [ebx + ctx_sha224256.msglen_0] |
|
|
357 |
mov edx, [ebx + ctx_sha224256.msglen_1] |
|
|
358 |
shld edx, eax, 3 |
|
|
359 |
shl eax, 3 |
|
|
360 |
bswap eax |
|
|
361 |
bswap edx |
|
|
362 |
mov dword[edi], edx |
|
|
363 |
mov dword[edi+4], eax |
|
|
364 |
lea esi, [ebx + ctx_sha224256.block] |
|
|
365 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
366 |
stdcall sha224256._.block, eax |
|
|
367 |
|
|
|
368 |
mov ebx, [_ctx] |
|
|
369 |
lea eax, [ebx + ctx_sha224256.hash] |
|
|
370 |
stdcall sha224256._.postprocess, ebx, eax |
|
|
371 |
|
|
|
372 |
ret |
|
|
373 |
endp |
|
|
374 |
|
|
|
375 |
|
|
|
376 |
proc sha224256._.postprocess _ctx, _hash |
|
|
377 |
mov ecx, 8 |
|
|
378 |
mov esi, [_hash] |
|
|
379 |
mov edi, esi |
|
|
380 |
@@: |
|
|
381 |
lodsd |
|
|
382 |
bswap eax |
|
|
383 |
stosd |
|
|
384 |
dec ecx |
|
|
385 |
jnz @b |
|
|
386 |
ret |
|
|
387 |
endp |
|
|
388 |
|
|
|
389 |
|
|
|
390 |
align SHA224256_ALIGN |
|
|
391 |
|
|
|
392 |
sha224._.hash_init dd 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939,\ |
|
|
393 |
0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 |
|
|
394 |
|
|
|
395 |
sha256._.hash_init dd 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,\ |
|
|
396 |
0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 |
|
|
397 |
|
|
|
398 |
sha256_table dd 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,\ |
|
|
399 |
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,\ |
|
|
400 |
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,\ |
|
|
401 |
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,\ |
|
|
402 |
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,\ |
|
|
403 |
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,\ |
|
|
404 |
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,\ |
|
|
405 |
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,\ |
|
|
406 |
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,\ |
|
|
407 |
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,\ |
|
|
408 |
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,\ |
|
|
409 |
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,\ |
|
|
410 |
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,\ |
|
|
411 |
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,\ |
|
|
412 |
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,\ |
|
|
413 |
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 |
|
|
414 |
|