forked from KolibriOS/kolibrios
Ivan Baravy
f8ff581ce7
move common code parts from all the *hash*.asm files to libcrash.asm replace procedures to macroses in sha1 in favour of readability and uniformity add license notes git-svn-id: svn://kolibrios.org@3431 a494cfbc-eb01-0410-851d-a64ba20cac60
283 lines
8.0 KiB
NASM
283 lines
8.0 KiB
NASM
; libcrash -- cryptographic hash functions
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;
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; Copyright (C) 2012-2013 Ivan Baravy (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 <http://www.gnu.org/licenses/>.
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format MS COFF
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public @EXPORT as 'EXPORTS'
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include '../../../../struct.inc'
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include '../../../../proc32.inc'
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include '../../../../macros.inc'
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include '../../../../config.inc'
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;include '../../../../debug.inc'
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purge section,mov,add,sub
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section '.flat' code readable align 16
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include 'libcrash.inc'
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include 'md4.asm'
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include 'md5.asm'
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include 'sha1.asm'
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include 'sha224_256.asm'
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include 'sha384_512.asm'
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proc lib_init
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ret
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endp
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proc crash.hash _hid, _hash, _data, _len, _callback, _msglen
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locals
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hash_func rd 1
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final rd 1
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hi rd 1
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endl
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mov eax, [_hid]
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imul eax, sizeof.crash_item
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lea eax, [crash._.table + eax]
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mov [hi], eax
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mov eax, [hi]
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mov edx, [eax + crash_item.function]
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mov esi, [eax + crash_item.init_val]
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mov edi, [_hash]
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mov [hash_func], edx
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mov ecx, [hi]
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mov ecx, [ecx + crash_item.len_in]
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rep movsd
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mov [final], 0
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.first:
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mov eax, [_msglen]
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mov ecx, [_len]
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add [eax], ecx
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mov esi, [_data]
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test ecx, ecx
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jz .callback
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.begin:
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mov eax, [hi]
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mov eax, [eax + crash_item.len_blk]
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sub [_len], eax
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jnc @f
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add [_len], eax
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jmp .endofblock
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@@:
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stdcall [hash_func], [_hash], [_data]
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jmp .begin
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.endofblock:
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cmp [final], 1
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je .quit
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.callback:
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call [_callback]
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test eax, eax
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jz @f
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mov [_len], eax
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jmp .first
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@@:
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mov edi, [_data]
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mov ecx, [_len]
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rep movsb
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mov eax, [_msglen]
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mov eax, [eax]
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mov edx, [hi]
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mov edx, [edx + crash_item.len_blk]
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sub edx, 1
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and eax, edx
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mov edx, [hi]
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mov ecx, [edx + crash_item.len_blk]
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sub ecx, [edx + crash_item.len_size]
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sub ecx, eax
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ja @f
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add ecx, [edx + crash_item.len_blk]
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@@:
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add [_len], ecx
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mov eax, [hi]
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mov byte[edi], 0x80
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add edi, 1
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sub ecx, 1
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mov al, 0
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rep stosb
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push ecx
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xor eax, eax
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mov ecx, [hi]
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mov ecx, [ecx + crash_item.len_size]
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sub ecx, 8 ; FIXME for > 2^64 input length
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shr ecx, 2
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rep stosd
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pop ecx
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mov eax, [_msglen]
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mov eax, [eax]
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mov edx, 8
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mul edx
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mov ecx, [hi]
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cmp [ecx + crash_item.endianness], LIBCRASH_ENDIAN_BIG
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jne @f
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bswap eax
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bswap edx
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xchg eax, edx
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@@:
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mov dword[edi], eax
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mov dword[edi + 4], edx
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mov ecx, [hi]
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mov eax, [ecx + crash_item.len_size]
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add [_len], eax
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mov [final], 1
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jmp .first
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.quit:
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mov eax, [hi]
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stdcall [eax + crash_item.postproc], [eax + crash_item.len_out], [_hash]
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ret
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endp
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proc crash._.md4_md5_postprocess _len_out, _hash
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ret
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endp
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proc crash._.sha1_224_256_postprocess _len_out, _hash
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mov ecx, [_len_out]
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mov esi, [_hash]
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mov edi, esi
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@@:
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lodsd
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bswap eax
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stosd
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dec ecx
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jnz @b
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ret
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endp
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proc crash._.sha384_512_postprocess _len_out, _hash
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mov ecx, [_len_out]
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mov esi, [_hash]
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mov edi, esi
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@@:
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lodsd
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mov ebx, eax
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lodsd
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bswap eax
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bswap ebx
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stosd
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mov eax, ebx
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stosd
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dec ecx
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jnz @b
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emms
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ret
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endp
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proc crash.bin2hex _bin, _hex, _hid ; FIXME _hid param?
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mov eax, [_hid]
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imul eax, sizeof.crash_item
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mov ecx, [crash._.table + eax + crash_item.len_out]
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mov ebx, crash._.bin2hex_table
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mov esi, [_bin]
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mov edi, [_hex]
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shl ecx, 2
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.next_byte:
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xor eax, eax
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lodsb
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shl eax, 4
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shr al, 4
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xlatb
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xchg al, ah
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xlatb
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stosw
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dec ecx
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jnz .next_byte
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xor al, al
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stosb
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ret
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endp
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crash._.bin2hex_table db '0123456789abcdef'
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; see crash_item struct for details
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crash._.table dd crash.md4, crash._.md4_init, crash._.md4_md5_postprocess, 4, 4, 64, 8, 0
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dd crash.md5, crash._.md5_init, crash._.md4_md5_postprocess, 4, 4, 64, 8, 0
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dd crash.sha1, crash._.sha1_init, crash._.sha1_224_256_postprocess, 5, 5, 64, 8, 1
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dd crash.sha256, crash._.sha224_init, crash._.sha1_224_256_postprocess, 8, 7, 64, 8, 1
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dd crash.sha256, crash._.sha256_init, crash._.sha1_224_256_postprocess, 8, 8, 64, 8, 1
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dd crash.sha512, crash._.sha384_init, crash._.sha384_512_postprocess, 16, 12, 128, 16, 1
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dd crash.sha512, crash._.sha512_init, crash._.sha384_512_postprocess, 16, 16, 128, 16, 1
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crash._.crc_init dd 0xffffffff
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crash._.md4_init:
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crash._.md5_init:
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crash._.sha1_init dd 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0
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crash._.sha224_init dd 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4
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crash._.sha256_init dd 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
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crash._.sha384_init dq 0xcbbb9d5dc1059ed8, 0x629a292a367cd507, 0x9159015a3070dd17, 0x152fecd8f70e5939,\
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0x67332667ffc00b31, 0x8eb44a8768581511, 0xdb0c2e0d64f98fa7, 0x47b5481dbefa4fa4
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crash._.sha512_init dq 0x6a09e667f3bcc908, 0xbb67ae8584caa73b, 0x3c6ef372fe94f82b, 0xa54ff53a5f1d36f1,\
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0x510e527fade682d1, 0x9b05688c2b3e6c1f, 0x1f83d9abfb41bd6b, 0x5be0cd19137e2179
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crash._.sha256_table dd 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,\
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,\
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,\
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,\
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,\
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,\
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,\
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
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crash._.sha512_table dq 0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc,\
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0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118,\
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0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,\
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0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694,\
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0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,\
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0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5,\
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0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4,\
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0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70,\
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0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df,\
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0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,\
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0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30,\
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0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8,\
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0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8,\
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0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3,\
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0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,\
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0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b,\
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0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178,\
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0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b,\
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0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c,\
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0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817
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align 4
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@EXPORT:
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export \
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lib_init , 'lib_init' , \
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crash.hash , 'crash_hash' , \
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crash.bin2hex , 'crash_bin2hex'
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section '.data' data readable writable align 16
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crash._.crc32_table rd 256
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