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3115 dunkaist 1 
macro crash.md4.f b, c, d
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{
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	push	c
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	xor	c, d
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	and	b, c
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	xor	b, d
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	pop	c
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}
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10 
macro crash.md4.g b, c, d
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{
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	push	c  d
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	mov	edi, b
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	and	b, c
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	and	c, d
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	and	d, edi
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	or	b, c
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	or	b, d
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	pop	d  c
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}
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22 
macro crash.md4.h b, c, d
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{
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	xor	b, c
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	xor	b, d
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}
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28 
macro crash.md4.round func, a, b, c, d, index, shift, ac
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{
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	push	b
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	func	b, c, d
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	lea	a, [a + b + ac]
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	add	a, [esi + index*4]
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	rol	a, shift
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	pop	b
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}
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38 
 
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proc crash.md4 _md4, _data, _len, _callback, _msglen
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locals
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	final	rd 1
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endl
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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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	sub	[_len], 64
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	jnc	@f
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	add	[_len], 64
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	jmp	.endofblock
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    @@:
57 
	mov	edi, [_md4]
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	mov	eax, [edi + 0x0]
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	mov	ebx, [edi + 0x4]
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	mov	ecx, [edi + 0x8]
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	mov	edx, [edi + 0xc]
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63 
	crash.md4.round		crash.md4.f, eax, ebx, ecx, edx,  0,  3, 0x00000000
64 
	crash.md4.round		crash.md4.f, edx, eax, ebx, ecx,  1,  7, 0x00000000
65 
	crash.md4.round		crash.md4.f, ecx, edx, eax, ebx,  2, 11, 0x00000000
66 
	crash.md4.round		crash.md4.f, ebx, ecx, edx, eax,  3, 19, 0x00000000
67 
	crash.md4.round		crash.md4.f, eax, ebx, ecx, edx,  4,  3, 0x00000000
68 
	crash.md4.round		crash.md4.f, edx, eax, ebx, ecx,  5,  7, 0x00000000
69 
	crash.md4.round		crash.md4.f, ecx, edx, eax, ebx,  6, 11, 0x00000000
70 
	crash.md4.round		crash.md4.f, ebx, ecx, edx, eax,  7, 19, 0x00000000
71 
	crash.md4.round		crash.md4.f, eax, ebx, ecx, edx,  8,  3, 0x00000000
72 
	crash.md4.round		crash.md4.f, edx, eax, ebx, ecx,  9,  7, 0x00000000
73 
	crash.md4.round		crash.md4.f, ecx, edx, eax, ebx, 10, 11, 0x00000000
74 
	crash.md4.round		crash.md4.f, ebx, ecx, edx, eax, 11, 19, 0x00000000
75 
	crash.md4.round		crash.md4.f, eax, ebx, ecx, edx, 12,  3, 0x00000000
76 
	crash.md4.round		crash.md4.f, edx, eax, ebx, ecx, 13,  7, 0x00000000
77 
	crash.md4.round		crash.md4.f, ecx, edx, eax, ebx, 14, 11, 0x00000000
78 
	crash.md4.round		crash.md4.f, ebx, ecx, edx, eax, 15, 19, 0x00000000
79 
 
80 
	crash.md4.round		crash.md4.g, eax, ebx, ecx, edx,  0,  3, 0x5a827999
81 
	crash.md4.round		crash.md4.g, edx, eax, ebx, ecx,  4,  5, 0x5a827999
82 
	crash.md4.round		crash.md4.g, ecx, edx, eax, ebx,  8,  9, 0x5a827999
83 
	crash.md4.round		crash.md4.g, ebx, ecx, edx, eax, 12, 13, 0x5a827999
84 
	crash.md4.round		crash.md4.g, eax, ebx, ecx, edx,  1,  3, 0x5a827999
85 
	crash.md4.round		crash.md4.g, edx, eax, ebx, ecx,  5,  5, 0x5a827999
86 
	crash.md4.round		crash.md4.g, ecx, edx, eax, ebx,  9,  9, 0x5a827999
87 
	crash.md4.round		crash.md4.g, ebx, ecx, edx, eax, 13, 13, 0x5a827999
88 
	crash.md4.round		crash.md4.g, eax, ebx, ecx, edx,  2,  3, 0x5a827999
89 
	crash.md4.round		crash.md4.g, edx, eax, ebx, ecx,  6,  5, 0x5a827999
90 
	crash.md4.round		crash.md4.g, ecx, edx, eax, ebx, 10,  9, 0x5a827999
91 
	crash.md4.round		crash.md4.g, ebx, ecx, edx, eax, 14, 13, 0x5a827999
92 
	crash.md4.round		crash.md4.g, eax, ebx, ecx, edx,  3,  3, 0x5a827999
93 
	crash.md4.round		crash.md4.g, edx, eax, ebx, ecx,  7,  5, 0x5a827999
94 
	crash.md4.round		crash.md4.g, ecx, edx, eax, ebx, 11,  9, 0x5a827999
95 
	crash.md4.round		crash.md4.g, ebx, ecx, edx, eax, 15, 13, 0x5a827999
96 
 
97 
	crash.md4.round		crash.md4.h, eax, ebx, ecx, edx,  0,  3, 0x6ed9eba1
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	crash.md4.round		crash.md4.h, edx, eax, ebx, ecx,  8,  9, 0x6ed9eba1
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	crash.md4.round		crash.md4.h, ecx, edx, eax, ebx,  4, 11, 0x6ed9eba1
100 
	crash.md4.round		crash.md4.h, ebx, ecx, edx, eax, 12, 15, 0x6ed9eba1
101 
	crash.md4.round		crash.md4.h, eax, ebx, ecx, edx,  2,  3, 0x6ed9eba1
102 
	crash.md4.round		crash.md4.h, edx, eax, ebx, ecx, 10,  9, 0x6ed9eba1
103 
	crash.md4.round		crash.md4.h, ecx, edx, eax, ebx,  6, 11, 0x6ed9eba1
104 
	crash.md4.round		crash.md4.h, ebx, ecx, edx, eax, 14, 15, 0x6ed9eba1
105 
	crash.md4.round		crash.md4.h, eax, ebx, ecx, edx,  1,  3, 0x6ed9eba1
106 
	crash.md4.round		crash.md4.h, edx, eax, ebx, ecx,  9,  9, 0x6ed9eba1
107 
	crash.md4.round		crash.md4.h, ecx, edx, eax, ebx,  5, 11, 0x6ed9eba1
108 
	crash.md4.round		crash.md4.h, ebx, ecx, edx, eax, 13, 15, 0x6ed9eba1
109 
	crash.md4.round		crash.md4.h, eax, ebx, ecx, edx,  3,  3, 0x6ed9eba1
110 
	crash.md4.round		crash.md4.h, edx, eax, ebx, ecx, 11,  9, 0x6ed9eba1
111 
	crash.md4.round		crash.md4.h, ecx, edx, eax, ebx,  7, 11, 0x6ed9eba1
112 
	crash.md4.round		crash.md4.h, ebx, ecx, edx, eax, 15, 15, 0x6ed9eba1
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	mov	edi, [_md4]
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	add	[edi + 0x0], eax
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	add	[edi + 0x4], ebx
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	add	[edi + 0x8], ecx
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	add	[edi + 0xc], edx
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	add	esi, 64
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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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	mov	eax, [_callback]
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	test	eax, eax
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	jz	@f
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	call	eax
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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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    @@:
135 
 
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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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	and	eax, 63
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	mov	ecx, 56
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	sub	ecx, eax
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	ja	@f
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	add	ecx, 64
146 
    @@:
147 
	add	[_len], ecx
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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
153 
	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	dword[edi], eax
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	mov	dword[edi + 4], edx
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	add	[_len], 8
160 
	mov	[final], 1
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	jmp	.first
162 
  .quit:
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	ret
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endp
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