kolibrios/programs/develop/libraries/libcrash/trunk/md4.asm
Ivan Baravy 595e11fbff libcrash: cryptographic hash functions
git-svn-id: svn://kolibrios.org@3115 a494cfbc-eb01-0410-851d-a64ba20cac60
2012-12-15 17:23:23 +00:00

166 lines
4.7 KiB
NASM

macro crash.md4.f b, c, d
{
push c
xor c, d
and b, c
xor b, d
pop c
}
macro crash.md4.g b, c, d
{
push c d
mov edi, b
and b, c
and c, d
and d, edi
or b, c
or b, d
pop d c
}
macro crash.md4.h b, c, d
{
xor b, c
xor b, d
}
macro crash.md4.round func, a, b, c, d, index, shift, ac
{
push b
func b, c, d
lea a, [a + b + ac]
add a, [esi + index*4]
rol a, shift
pop b
}
proc crash.md4 _md4, _data, _len, _callback, _msglen
locals
final rd 1
endl
mov [final], 0
.first:
mov eax, [_msglen]
mov ecx, [_len]
add [eax], ecx
mov esi, [_data]
test ecx, ecx
jz .callback
.begin:
sub [_len], 64
jnc @f
add [_len], 64
jmp .endofblock
@@:
mov edi, [_md4]
mov eax, [edi + 0x0]
mov ebx, [edi + 0x4]
mov ecx, [edi + 0x8]
mov edx, [edi + 0xc]
crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 0, 3, 0x00000000
crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 1, 7, 0x00000000
crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 2, 11, 0x00000000
crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 3, 19, 0x00000000
crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 4, 3, 0x00000000
crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 5, 7, 0x00000000
crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 6, 11, 0x00000000
crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 7, 19, 0x00000000
crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 8, 3, 0x00000000
crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 9, 7, 0x00000000
crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 10, 11, 0x00000000
crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 11, 19, 0x00000000
crash.md4.round crash.md4.f, eax, ebx, ecx, edx, 12, 3, 0x00000000
crash.md4.round crash.md4.f, edx, eax, ebx, ecx, 13, 7, 0x00000000
crash.md4.round crash.md4.f, ecx, edx, eax, ebx, 14, 11, 0x00000000
crash.md4.round crash.md4.f, ebx, ecx, edx, eax, 15, 19, 0x00000000
crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 0, 3, 0x5a827999
crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 4, 5, 0x5a827999
crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 8, 9, 0x5a827999
crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 12, 13, 0x5a827999
crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 1, 3, 0x5a827999
crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 5, 5, 0x5a827999
crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 9, 9, 0x5a827999
crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 13, 13, 0x5a827999
crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 2, 3, 0x5a827999
crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 6, 5, 0x5a827999
crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 10, 9, 0x5a827999
crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 14, 13, 0x5a827999
crash.md4.round crash.md4.g, eax, ebx, ecx, edx, 3, 3, 0x5a827999
crash.md4.round crash.md4.g, edx, eax, ebx, ecx, 7, 5, 0x5a827999
crash.md4.round crash.md4.g, ecx, edx, eax, ebx, 11, 9, 0x5a827999
crash.md4.round crash.md4.g, ebx, ecx, edx, eax, 15, 13, 0x5a827999
crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 0, 3, 0x6ed9eba1
crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 8, 9, 0x6ed9eba1
crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 4, 11, 0x6ed9eba1
crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 12, 15, 0x6ed9eba1
crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 2, 3, 0x6ed9eba1
crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 10, 9, 0x6ed9eba1
crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 6, 11, 0x6ed9eba1
crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 14, 15, 0x6ed9eba1
crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 1, 3, 0x6ed9eba1
crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 9, 9, 0x6ed9eba1
crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 5, 11, 0x6ed9eba1
crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 13, 15, 0x6ed9eba1
crash.md4.round crash.md4.h, eax, ebx, ecx, edx, 3, 3, 0x6ed9eba1
crash.md4.round crash.md4.h, edx, eax, ebx, ecx, 11, 9, 0x6ed9eba1
crash.md4.round crash.md4.h, ecx, edx, eax, ebx, 7, 11, 0x6ed9eba1
crash.md4.round crash.md4.h, ebx, ecx, edx, eax, 15, 15, 0x6ed9eba1
mov edi, [_md4]
add [edi + 0x0], eax
add [edi + 0x4], ebx
add [edi + 0x8], ecx
add [edi + 0xc], edx
add esi, 64
jmp .begin
.endofblock:
cmp [final], 1
je .quit
.callback:
mov eax, [_callback]
test eax, eax
jz @f
call eax
test eax, eax
jz @f
mov [_len], eax
jmp .first
@@:
mov edi, [_data]
mov ecx, [_len]
rep movsb
mov eax, [_msglen]
mov eax, [eax]
and eax, 63
mov ecx, 56
sub ecx, eax
ja @f
add ecx, 64
@@:
add [_len], ecx
mov byte[edi], 0x80
add edi, 1
sub ecx, 1
mov al, 0
rep stosb
mov eax, [_msglen]
mov eax, [eax]
mov edx, 8
mul edx
mov dword[edi], eax
mov dword[edi + 4], edx
add [_len], 8
mov [final], 1
jmp .first
.quit:
ret
endp