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[原创]MD5汇编源码折腾日记(附全部RASM源码)
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发表于: 2013-3-16 16:33
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第一天
写个程序，用的了MD5汇编码，百度了一堆，但是没有一个满意的。
并且都对500M以上的大文件支持不好，可怜单位配的256M内存的古董机！！！！！
于是自己决定重新写个，如下：(只贴MD5部分，全部源码请看附件)
;算法
_LeftMov@MD5 macro _dwA,_dwB,x,s,t
add eax,_dwA
add eax,x
add eax,t
mov cl,s
rol eax,cl
add eax,_dwB
endm
; F(x,y,z) = (x and y) or ((not x) and z)
; a =((a + F(b,c,d) + x + t) << s ) + b
_FProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
and ebx,eax
not eax
and eax,ecx
or eax,ebx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
; G(x,y,z) = (x and z) or (y and (not z))
; a = ((a + G(b,c,d) + x + t) << s) + b
_GProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
and eax,ecx
not ecx
and ecx,ebx
or eax,ecx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
; H(x,y,z) = x xor y xor z
; a = ((a + H(b,c,d) + x + t) << s) + b
_HProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
xor eax,ebx
xor eax,ecx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
; I(x,y,z) = y xor (x or (not z))
; a = ((a + I(b,c,d) + x + t) << s) + b
_IProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
not ecx
or eax,ecx
xor eax,ebx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
_dwA@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwA,@dwB,@dwC,@dwD,dword ptr [edi+_dwBitNumber*4],_ALeftBits,_dwTi
mov @dwA,eax
endm
_dwB@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwB,@dwC,@dwD,@dwA,dword ptr [edi+_dwBitNumber*4],_BLeftBits,_dwTi
mov @dwB,eax
endm
_dwC@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwC,@dwD,@dwA,@dwB,dword ptr [edi+_dwBitNumber*4],_CLeftBits,_dwTi
mov @dwC,eax
endm
_dwD@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwD,@dwA,@dwB,@dwC,dword ptr [edi+_dwBitNumber*4],_DLeftBits,_dwTi
mov @dwD,eax
endm
_MD5hashProc proc uses edi esi,_lpFileMem,_dwFileSize,_lpdwMD5Buffer
local @dwA,@dwB,@dwC,@dwD
LOCAL @dwRotateCount
LOCAL @dwEndRotateCount
LOCAL @szBuffer1[128]:byte
LOCAL @bEndMD5
LOCAL @dbFileSizeInBuffer:byte
xor al,al
lea edi,@szBuffer1
mov ecx,sizeof @szBuffer1
cld
rep stosb
mov @bEndMD5,FALSE
;求得512取模及需要填充的数据
mov eax,_dwFileSize
shr eax,6
mov @dwRotateCount,eax
;模64后末尾字符串复制到缓冲区
lea edi,@szBuffer1
mov esi,_lpFileMem
mov eax,_dwFileSize
mov ecx,eax
and eax,0ffffffc0h;
add esi,eax
and ecx,03fh;除以64求模
mov @dbFileSizeInBuffer,cl
.if ecx
cld
rep movsb
.endif
mov byte ptr [edi],080h;消息末尾附1
;后64位填充消息长度//转为处理@szBuffer1
lea edi,@szBuffer1
mov eax,_dwFileSize
mov edx,eax
shl eax,3
shr edx,29
mov cl,@dbFileSizeInBuffer
inc cl
.if cl <= 56
mov @dwEndRotateCount,1
mov dword ptr [edi+ 60],edx
mov dword ptr [edi+ 56],eax
.else
mov @dwEndRotateCount,2
mov dword ptr [edi+124],edx
mov dword ptr [edi+120],eax
.endif
mov edi,_lpFileMem
push 067452301h
pop @dwA
push 0efcdab89h
pop @dwB
push 098badcfeh
pop @dwC
push 010325476h
pop @dwD
_Rotate:
.while @dwRotateCount
push @dwD
push @dwC
push @dwB
push @dwA
;F
_ALeftBits = 07
_DLeftBits = 12
_CLeftBits = 17
_BLeftBits = 22
_dwA@MD5 _FProc,0,0d76aa478h
_dwD@MD5 _FProc,1,0e8c7b756h
_dwC@MD5 _FProc,2,0242070dbh
_dwB@MD5 _FProc,3,0c1bdceeeh
_dwA@MD5 _FProc,4,0f57c0fafh
_dwD@MD5 _FProc,5,04787c62ah
_dwC@MD5 _FProc,6,0a8304613h
_dwB@MD5 _FProc,7,0fd469501h
_dwA@MD5 _FProc,8,0698098d8h
_dwD@MD5 _FProc,9,08b44f7afh
_dwC@MD5 _FProc,10,0ffff5bb1h
_dwB@MD5 _FProc,11,0895cd7beh
_dwA@MD5 _FProc,12,06b901122h
_dwD@MD5 _FProc,13,0fd987193h
_dwC@MD5 _FProc,14,0a679438eh
_dwB@MD5 _FProc,15,049b40821h
;G
_ALeftBits = 05
_DLeftBits = 09
_CLeftBits = 14
_BLeftBits = 20
_dwA@MD5 _GProc,1,0f61e2562h
_dwD@MD5 _GProc,6,0c040b340h
_dwC@MD5 _GProc,11,0265e5a51h
_dwB@MD5 _GProc,0,0e9b6c7aah
_dwA@MD5 _GProc,05,0d62f105dh
_dwD@MD5 _GProc,10,002441453h
_dwC@MD5 _GProc,15,0d8a1e681h
_dwB@MD5 _GProc,04,0e7d3fbc8h
_dwA@MD5 _GProc,09,021e1cde6h
_dwD@MD5 _GProc,14,0c33707d6h
_dwC@MD5 _GProc,03,0f4d50d87h
_dwB@MD5 _GProc,08,0455a14edh
_dwA@MD5 _GProc,13,0a9e3e905h
_dwD@MD5 _GProc,02,0fcefa3f8h
_dwC@MD5 _GProc,07,0676f02d9h
_dwB@MD5 _GProc,12,08d2a4c8ah
;H
_ALeftBits = 04
_DLeftBits = 11
_CLeftBits = 16
_BLeftBits = 23
_dwA@MD5 _HProc,05,0fffa3942h
_dwD@MD5 _HProc,08,08771f681h
_dwC@MD5 _HProc,11,06d9d6122h
_dwB@MD5 _HProc,14,0fde5380ch
_dwA@MD5 _HProc,01,0a4beea44h
_dwD@MD5 _HProc,04,04bdecfa9h
_dwC@MD5 _HProc,07,0f6bb4b60h
_dwB@MD5 _HProc,10,0bebfbc70h
_dwA@MD5 _HProc,13,0289b7ec6h
_dwD@MD5 _HProc,00,0eaa127fah
_dwC@MD5 _HProc,03,0d4ef3085h
_dwB@MD5 _HProc,06,004881d05h
_dwA@MD5 _HProc,09,0d9d4d039h
_dwD@MD5 _HProc,12,0e6db99e5h
_dwC@MD5 _HProc,15,01fa27cf8h
_dwB@MD5 _HProc,02,0c4ac5665h
;I
_ALeftBits = 06
_DLeftBits = 10
_CLeftBits = 15
_BLeftBits = 21
_dwA@MD5 _IProc,00,0f4292244h
_dwD@MD5 _IProc,07,0432aff97h
_dwC@MD5 _IProc,14,0ab9423a7h
_dwB@MD5 _IProc,05,0fc93a039h
_dwA@MD5 _IProc,12,0655b59c3h
_dwD@MD5 _IProc,03,08f0ccc92h
_dwC@MD5 _IProc,10,0ffeff47dh
_dwB@MD5 _IProc,01,085845dd1h
_dwA@MD5 _IProc,08,06fa87e4fh
_dwD@MD5 _IProc,15,0fe2ce6e0h
_dwC@MD5 _IProc,06,0a3014314h
_dwB@MD5 _IProc,13,04e0811a1h
_dwA@MD5 _IProc,04,0f7537e82h
_dwD@MD5 _IProc,11,0bd3af235h
_dwC@MD5 _IProc,02,02ad7d2bbh
_dwB@MD5 _IProc,09,0eb86d391h
pop eax
add @dwA,eax
pop eax
add @dwB,eax
pop eax
add @dwC,eax
pop eax
add @dwD,eax
add edi,16*sizeof dword
dec @dwRotateCount
.endw
.if @bEndMD5 == TRUE
jmp @f
.endif
push @dwEndRotateCount
pop @dwRotateCount
lea edi,@szBuffer1
mov @bEndMD5,TRUE
jmp _Rotate
@@:
;交换结果的高低位
mov eax,@dwA
bswap eax
mov ebx,@dwB
bswap ebx
mov ecx,@dwC
bswap ecx
mov edx,@dwD
bswap edx
jmp @f
szMD5Format@_MD5hashProc db '%.8x%.8x%.8x%.8x',0
@@:
invoke wsprintf,_lpdwMD5Buffer,addr szMD5Format@_MD5hashProc,eax,ebx,ecx,edx
ret
_MD5hashProc endp
写个程序，用的了MD5汇编码，百度了一堆，但是没有一个满意的。
并且都对500M以上的大文件支持不好，可怜单位配的256M内存的古董机！！！！！
于是自己决定重新写个，如下：(只贴MD5部分，全部源码请看附件)
;算法
_LeftMov@MD5 macro _dwA,_dwB,x,s,t
add eax,_dwA
add eax,x
add eax,t
mov cl,s
rol eax,cl
add eax,_dwB
endm
; F(x,y,z) = (x and y) or ((not x) and z)
; a =((a + F(b,c,d) + x + t) << s ) + b
_FProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
and ebx,eax
not eax
and eax,ecx
or eax,ebx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
; G(x,y,z) = (x and z) or (y and (not z))
; a = ((a + G(b,c,d) + x + t) << s) + b
_GProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
and eax,ecx
not ecx
and ecx,ebx
or eax,ecx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
; H(x,y,z) = x xor y xor z
; a = ((a + H(b,c,d) + x + t) << s) + b
_HProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
xor eax,ebx
xor eax,ecx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
; I(x,y,z) = y xor (x or (not z))
; a = ((a + I(b,c,d) + x + t) << s) + b
_IProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t
mov eax,_dwB
mov ebx,_dwC
mov ecx,_dwD
not ecx
or eax,ecx
xor eax,ebx
_LeftMov@MD5 _dwA,_dwB,x,s,t
endm
_dwA@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwA,@dwB,@dwC,@dwD,dword ptr [edi+_dwBitNumber*4],_ALeftBits,_dwTi
mov @dwA,eax
endm
_dwB@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwB,@dwC,@dwD,@dwA,dword ptr [edi+_dwBitNumber*4],_BLeftBits,_dwTi
mov @dwB,eax
endm
_dwC@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwC,@dwD,@dwA,@dwB,dword ptr [edi+_dwBitNumber*4],_CLeftBits,_dwTi
mov @dwC,eax
endm
_dwD@MD5 macro _Function,_dwBitNumber,_dwTi
_Function&@MD5 @dwD,@dwA,@dwB,@dwC,dword ptr [edi+_dwBitNumber*4],_DLeftBits,_dwTi
mov @dwD,eax
endm
_MD5hashProc proc uses edi esi,_lpFileMem,_dwFileSize,_lpdwMD5Buffer
local @dwA,@dwB,@dwC,@dwD
LOCAL @dwRotateCount
LOCAL @dwEndRotateCount
LOCAL @szBuffer1[128]:byte
LOCAL @bEndMD5
LOCAL @dbFileSizeInBuffer:byte
xor al,al
lea edi,@szBuffer1
mov ecx,sizeof @szBuffer1
cld
rep stosb
mov @bEndMD5,FALSE
;求得512取模及需要填充的数据
mov eax,_dwFileSize
shr eax,6
mov @dwRotateCount,eax
;模64后末尾字符串复制到缓冲区
lea edi,@szBuffer1
mov esi,_lpFileMem
mov eax,_dwFileSize
mov ecx,eax
and eax,0ffffffc0h;
add esi,eax
and ecx,03fh;除以64求模
mov @dbFileSizeInBuffer,cl
.if ecx
cld
rep movsb
.endif
mov byte ptr [edi],080h;消息末尾附1
;后64位填充消息长度//转为处理@szBuffer1
lea edi,@szBuffer1
mov eax,_dwFileSize
mov edx,eax
shl eax,3
shr edx,29
mov cl,@dbFileSizeInBuffer
inc cl
.if cl <= 56
mov @dwEndRotateCount,1
mov dword ptr [edi+ 60],edx
mov dword ptr [edi+ 56],eax
.else
mov @dwEndRotateCount,2
mov dword ptr [edi+124],edx
mov dword ptr [edi+120],eax
.endif
mov edi,_lpFileMem
push 067452301h
pop @dwA
push 0efcdab89h
pop @dwB
push 098badcfeh
pop @dwC
push 010325476h
pop @dwD
_Rotate:
.while @dwRotateCount
push @dwD
push @dwC
push @dwB
push @dwA
;F
_ALeftBits = 07
_DLeftBits = 12
_CLeftBits = 17
_BLeftBits = 22
_dwA@MD5 _FProc,0,0d76aa478h
_dwD@MD5 _FProc,1,0e8c7b756h
_dwC@MD5 _FProc,2,0242070dbh
_dwB@MD5 _FProc,3,0c1bdceeeh
_dwA@MD5 _FProc,4,0f57c0fafh
_dwD@MD5 _FProc,5,04787c62ah
_dwC@MD5 _FProc,6,0a8304613h
_dwB@MD5 _FProc,7,0fd469501h
_dwA@MD5 _FProc,8,0698098d8h
_dwD@MD5 _FProc,9,08b44f7afh
_dwC@MD5 _FProc,10,0ffff5bb1h
_dwB@MD5 _FProc,11,0895cd7beh
_dwA@MD5 _FProc,12,06b901122h
_dwD@MD5 _FProc,13,0fd987193h
_dwC@MD5 _FProc,14,0a679438eh
_dwB@MD5 _FProc,15,049b40821h
;G
_ALeftBits = 05
_DLeftBits = 09
_CLeftBits = 14
_BLeftBits = 20
_dwA@MD5 _GProc,1,0f61e2562h
_dwD@MD5 _GProc,6,0c040b340h
_dwC@MD5 _GProc,11,0265e5a51h
_dwB@MD5 _GProc,0,0e9b6c7aah
_dwA@MD5 _GProc,05,0d62f105dh
_dwD@MD5 _GProc,10,002441453h
_dwC@MD5 _GProc,15,0d8a1e681h
_dwB@MD5 _GProc,04,0e7d3fbc8h
_dwA@MD5 _GProc,09,021e1cde6h
_dwD@MD5 _GProc,14,0c33707d6h
_dwC@MD5 _GProc,03,0f4d50d87h
_dwB@MD5 _GProc,08,0455a14edh
_dwA@MD5 _GProc,13,0a9e3e905h
_dwD@MD5 _GProc,02,0fcefa3f8h
_dwC@MD5 _GProc,07,0676f02d9h
_dwB@MD5 _GProc,12,08d2a4c8ah
;H
_ALeftBits = 04
_DLeftBits = 11
_CLeftBits = 16
_BLeftBits = 23
_dwA@MD5 _HProc,05,0fffa3942h
_dwD@MD5 _HProc,08,08771f681h
_dwC@MD5 _HProc,11,06d9d6122h
_dwB@MD5 _HProc,14,0fde5380ch
_dwA@MD5 _HProc,01,0a4beea44h
_dwD@MD5 _HProc,04,04bdecfa9h
_dwC@MD5 _HProc,07,0f6bb4b60h
_dwB@MD5 _HProc,10,0bebfbc70h
_dwA@MD5 _HProc,13,0289b7ec6h
_dwD@MD5 _HProc,00,0eaa127fah
_dwC@MD5 _HProc,03,0d4ef3085h
_dwB@MD5 _HProc,06,004881d05h
_dwA@MD5 _HProc,09,0d9d4d039h
_dwD@MD5 _HProc,12,0e6db99e5h
_dwC@MD5 _HProc,15,01fa27cf8h
_dwB@MD5 _HProc,02,0c4ac5665h
;I
_ALeftBits = 06
_DLeftBits = 10
_CLeftBits = 15
_BLeftBits = 21
_dwA@MD5 _IProc,00,0f4292244h
_dwD@MD5 _IProc,07,0432aff97h
_dwC@MD5 _IProc,14,0ab9423a7h
_dwB@MD5 _IProc,05,0fc93a039h
_dwA@MD5 _IProc,12,0655b59c3h
_dwD@MD5 _IProc,03,08f0ccc92h
_dwC@MD5 _IProc,10,0ffeff47dh
_dwB@MD5 _IProc,01,085845dd1h
_dwA@MD5 _IProc,08,06fa87e4fh
_dwD@MD5 _IProc,15,0fe2ce6e0h
_dwC@MD5 _IProc,06,0a3014314h
_dwB@MD5 _IProc,13,04e0811a1h
_dwA@MD5 _IProc,04,0f7537e82h
_dwD@MD5 _IProc,11,0bd3af235h
_dwC@MD5 _IProc,02,02ad7d2bbh
_dwB@MD5 _IProc,09,0eb86d391h
pop eax
add @dwA,eax
pop eax
add @dwB,eax
pop eax
add @dwC,eax
pop eax
add @dwD,eax
add edi,16*sizeof dword
dec @dwRotateCount
.endw
.if @bEndMD5 == TRUE
jmp @f
.endif
push @dwEndRotateCount
pop @dwRotateCount
lea edi,@szBuffer1
mov @bEndMD5,TRUE
jmp _Rotate
@@:
;交换结果的高低位
mov eax,@dwA
bswap eax
mov ebx,@dwB
bswap ebx
mov ecx,@dwC
bswap ecx
mov edx,@dwD
bswap edx
jmp @f
szMD5Format@_MD5hashProc db '%.8x%.8x%.8x%.8x',0
@@:
invoke wsprintf,_lpdwMD5Buffer,addr szMD5Format@_MD5hashProc,eax,ebx,ecx,edx
ret
_MD5hashProc endp
[招生]科锐逆向工程师培训(2024年11月15日实地，远程教学同时开班, 第51期)
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第二天
写完后，发现：中间那一堆代码怎么看怎么那么不顺眼呢！！，继续改写，折腾吧就  .....变成了如下样子： （详细代码看附件） .const IDC_BtFileName equ 1001 IDC_EditFileName equ 1002 IDC_EditMD5 equ 1003 IDC_BtMD5 equ 1004 IDC_BtTerminateMD5 equ 1005 .data szClassName db "Class",0 szWindowName db "MD5加密算法",0 szEdit db "Edit",0 szButton db "Button",0 szBtMD5 db '开始MD5',0 szBtTerminateMD5 db '终止MD5',0 szBtFileName db '文件...',0 szStrFilter db "所有文件(*.*)",0,"*.*",0,0 szCurrentFilePath db MAX_PATH dup (?) szFileName db MAX_PATH dup (?) align dword dwFLeftMove db 07,12,17,22 dwGLeftMove db 05,09,14,20 dwHLeftMove db 04,11,16,23 dwILeftMove db 06,10,15,21 dwFOffset db 00,01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 dwGOffset db 01,06,11,00,05,10,15,04,09,14,03,08,13,02,07,12 dwHOffset db 05,08,11,14,01,04,07,10,13,00,03,06,09,12,15,02 dwIOffset db 00,07,14,05,12,03,10,01,08,15,06,13,04,11,02,09 dwFTi DWORD 0D76AA478H,0E8C7B756H,0242070DBH,0C1BDCEEEH DWORD 0F57C0FAFH,04787C62AH,0A8304613H,0FD469501H DWORD 0698098D8H,08B44F7AFH,0FFFF5BB1H,0895CD7BEH DWORD 06B901122H,0FD987193H,0A679438EH,049B40821H dwGTi DWORD 0F61E2562H,0C040B340H,0265E5A51H,0E9B6C7AAH DWORD 0D62F105DH,002441453H,0D8A1E681H,0E7D3FBC8H DWORD 021E1CDE6H,0C33707D6H,0F4D50D87H,0455A14EDH DWORD 0A9E3E905H,0FCEFA3F8H,0676F02D9H,08D2A4C8AH dwHTi DWORD 0FFFA3942H,08771F681H,06D9D6122H,0FDE5380CH DWORD 0A4BEEA44H,04BDECFA9H,0F6BB4B60H,0BEBFBC70H DWORD 0289B7EC6H,0EAA127FAH,0D4EF3085H,004881D05H DWORD 0D9D4D039H,0E6DB99E5H,01FA27CF8H,0C4AC5665H dwITi DWORD 0F4292244H,0432AFF97H,0AB9423A7H,0FC93A039H DWORD 0655B59C3H,08F0CCC92H,0FFEFF47DH,085845DD1H DWORD 06FA87E4FH,0FE2CE6E0H,0A3014314H,04E0811A1H DWORD 0F7537E82H,0BD3AF235H,02AD7D2BBH,0EB86D391H .data? hMD5Thd dd ? hInstance dd ? hWinMain dd ? hEditMD5 dd ? hBtMD5 dd ? hBtTerminateMD5 dd ? hBtFileName dd ? hEditFileName dd ? lpFileMemHeader dd ? dwOpenFileSize dd ? .code _OpenFileProc proc uses ebx esi edi ,_hWnd LOCAL @dwOpenFileSizeHigh LOCAL @szBuffer3[1024]:byte LOCAL @stOFN:OPENFILENAME LOCAL @stSA:SECURITY_ATTRIBUTES LOCAL @hDC1 LOCAL @hFileMap LOCAL @hOpenFile LOCAL @dwTmp .if lpFileMemHeader invoke UnmapViewOfFile,lpFileMemHeader mov lpFileMemHeader,0 .endif invoke SetWindowText,hEditFileName,0 invoke SetWindowText,hEditMD5,0 mov dwOpenFileSize,0 invoke RtlZeroMemory,addr @stOFN,sizeof @stOFN mov @stOFN.lStructSize,sizeof @stOFN lea eax,szCurrentFilePath mov @stOFN.lpstrFile,eax mov @stOFN.nMaxFile,MAX_PATH mov @stOFN.Flags,OFN_FILEMUSTEXIST OR OFN_PATHMUSTEXIST invoke GetOpenFileName,addr @stOFN .if !eax jmp _NOPE .endif invoke SetWindowText,hEditFileName,addr szCurrentFilePath invoke RtlZeroMemory,addr @stSA,sizeof @stSA invoke CreateFile,addr szCurrentFilePath, GENERIC_READ,FILE_SHARE_DELETE or FILE_SHARE_READ or FILE_SHARE_WRITE,addr @stSA,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL ,0;FILE_FLAG_DELETE_ON_CLOSE or .if eax == INVALID_HANDLE_VALUE jmp _NOPE .endif mov @hOpenFile,eax invoke GetFileSize,@hOpenFile,addr @dwOpenFileSizeHigh mov dwOpenFileSize,eax .if !eax invoke CloseHandle,@hFileMap invoke CloseHandle,@hOpenFile jmp _NOPE .endif invoke CreateFileMapping,@hOpenFile,0,PAGE_READONLY,0,0,0 .if !eax invoke CloseHandle,@hOpenFile jmp _NOPE .endif mov @hFileMap,eax invoke MapViewOfFile,@hFileMap, FILE_MAP_READ,0,0,0 .if !eax invoke CloseHandle,@hFileMap invoke CloseHandle,@hOpenFile jmp _NOPE .endif mov lpFileMemHeader,eax invoke CloseHandle,@hFileMap invoke CloseHandle,@hOpenFile _NOPE: ret _OpenFileProc endp _LeftMov@MD5 macro _dwA,_dwB,x,s,t add eax,_dwA add eax,x add eax,t mov cl,s rol eax,cl add eax,_dwB endm ; F(x,y,z) = (x and y) or ((not x) and z) ; a =((a + F(b,c,d) + x + t) << s ) + b _FProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD and ebx,eax not eax and eax,ecx or eax,ebx _LeftMov@MD5 _dwA,_dwB,x,s,t endm ; G(x,y,z) = (x and z) or (y and (not z)) ; a = ((a + G(b,c,d) + x + t) << s) + b _GProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD and eax,ecx not ecx and ecx,ebx or eax,ecx _LeftMov@MD5 _dwA,_dwB,x,s,t endm ; H(x,y,z) = x xor y xor z ; a = ((a + H(b,c,d) + x + t) << s) + b _HProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD xor eax,ebx xor eax,ecx _LeftMov@MD5 _dwA,_dwB,x,s,t endm ; I(x,y,z) = y xor (x or (not z)) ; a = ((a + I(b,c,d) + x + t) << s) + b _IProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD not ecx or eax,ecx xor eax,ebx _LeftMov@MD5 _dwA,_dwB,x,s,t endm _dwA@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwA,@dwB,@dwC,@dwD,dword ptr [edi+_dwBitNumber*4],_ALeftBits,_dwTi mov @dwA,eax endm _dwB@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwB,@dwC,@dwD,@dwA,dword ptr [edi+_dwBitNumber*4],_BLeftBits,_dwTi mov @dwB,eax endm _dwC@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwC,@dwD,@dwA,@dwB,dword ptr [edi+_dwBitNumber*4],_CLeftBits,_dwTi mov @dwC,eax endm _dwD@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwD,@dwA,@dwB,@dwC,dword ptr [edi+_dwBitNumber*4],_DLeftBits,_dwTi mov @dwD,eax endm _MD5hashProc proc uses edi esi,_lpFileMem,_dwFileSize,_lpdwMD5Buffer local @dwA,@dwB,@dwC,@dwD LOCAL @dwRotateMD5Count LOCAL @dwEndRotateMD5Count LOCAL @szBuffer1[128]:byte LOCAL @bEndMD5 LOCAL @dbFileSizeInBuffer:byte xor al,al lea edi,@szBuffer1 mov ecx,sizeof @szBuffer1 cld rep stosb mov @bEndMD5,FALSE ;求得512取模及需要填充的数据 mov eax,_dwFileSize shr eax,6 mov @dwRotateMD5Count,eax ;模64后末尾字符串复制到缓冲区 lea edi,@szBuffer1 mov esi,_lpFileMem mov eax,_dwFileSize mov ecx,eax and eax,0ffffffc0h; add esi,eax and ecx,03fh;除以64求模 mov @dbFileSizeInBuffer,cl .if ecx cld rep movsb .endif mov byte ptr [edi],080h;消息末尾附1 ;后64位填充消息长度//转为处理@szBuffer1 lea edi,@szBuffer1 mov eax,_dwFileSize;ebx mov edx,eax shl eax,3 shr edx,29 mov cl,@dbFileSizeInBuffer;_dwFileSize .if cl < 56 mov @dwEndRotateMD5Count,1 mov dword ptr [edi+ 60],edx mov dword ptr [edi+ 56],eax .else mov @dwEndRotateMD5Count,2 mov dword ptr [edi+124],edx mov dword ptr [edi+120],eax .endif push 067452301h pop @dwA push 0efcdab89h pop @dwB push 098badcfeh pop @dwC push 010325476h pop @dwD mov edi,_lpFileMem _Rotate: mov ecx, @dwRotateMD5Count .while ecx push ecx push @dwD push @dwC push @dwB push @dwA xor esi,esi .while esi < 64 mov eax,@dwB mov ebx,@dwC mov ecx,@dwD .if esi < 16;F and ebx,eax not eax and eax,ecx or eax,ebx .elseif esi < 32;G and eax,ecx not ecx and ecx,ebx or eax,ecx .elseif esi < 48;H xor eax,ebx xor eax,ecx .else ;I not ecx or eax,ecx xor eax,ebx .endif add eax,@dwA movzx ecx,byte ptr [offset dwFOffset + esi ] add eax,dword ptr [edi+ ecx * sizeof dword];x add eax,dword ptr [offset dwFTi + esi * sizeof dword];t mov ecx,esi shr ecx,2 and ecx,12 mov edx,esi and edx,3 mov cl,byte ptr [offset dwFLeftMove + edx + ecx] rol eax,cl add eax,@dwB xchg eax,@dwB xchg eax,@dwC xchg eax,@dwD xchg eax,@dwA inc esi .endw pop eax add @dwA,eax pop eax add @dwB,eax pop eax add @dwC,eax pop eax add @dwD,eax add edi,16*sizeof dword pop ecx dec ecx .endw .if @bEndMD5 == TRUE jmp @f .endif push @dwEndRotateMD5Count pop @dwRotateMD5Count lea edi,@szBuffer1 mov @bEndMD5,TRUE jmp _Rotate @@: mov eax,@dwA bswap eax mov ebx,@dwB bswap ebx mov ecx,@dwC bswap ecx mov edx,@dwD bswap edx jmp @f szMD5Format@_MD5hashProc db '%.8x%.8x%.8x%.8x',0 @@: invoke wsprintf,_lpdwMD5Buffer,addr szMD5Format@_MD5hashProc,eax,ebx,ecx,edx ret _MD5hashProc endp |
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第三天
再次看了下源码，发现那一堆Ti数据表，怎么看怎么是个累赘，得了，附加段代码，自动生成吧  ，又变成了下面这样：（详细代码看附件） .const IDC_BtFileName equ 1001 IDC_EditFileName equ 1002 IDC_EditMD5 equ 1003 IDC_BtMD5 equ 1004 IDC_BtTerminateMD5 equ 1005 .data szClassName db "Class",0 szWindowName db "MD5加密算法",0 szEdit db "Edit",0 szButton db "Button",0 szBtMD5 db '开始MD5',0 szBtTerminateMD5 db '终止MD5',0 szBtFileName db '文件...',0 szStrFilter db "所有文件(*.*)",0,"*.*",0,0 szCurrentFilePath db MAX_PATH dup (?) szFileName db MAX_PATH dup (?) align dword dwFLeftMove db 07,12,17,22 dwGLeftMove db 05,09,14,20 dwHLeftMove db 04,11,16,23 dwILeftMove db 06,10,15,21 dwFOffset db 00,01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 dwGOffset db 01,06,11,00,05,10,15,04,09,14,03,08,13,02,07,12 dwHOffset db 05,08,11,14,01,04,07,10,13,00,03,06,09,12,15,02 dwIOffset db 00,07,14,05,12,03,10,01,08,15,06,13,04,11,02,09 .data? hMD5Thd dd ? hInstance dd ? hWinMain dd ? hEditMD5 dd ? hBtMD5 dd ? hBtTerminateMD5 dd ? hBtFileName dd ? hEditFileName dd ? lpFileMemHeader dd ? dwOpenFileSize dd ? .code _OpenFileProc proc uses ebx esi edi ,_hWnd LOCAL @dwOpenFileSizeHigh LOCAL @szBuffer3[1024]:byte LOCAL @stOFN:OPENFILENAME LOCAL @stSA:SECURITY_ATTRIBUTES LOCAL @hDC1 LOCAL @hFileMap LOCAL @hOpenFile LOCAL @dwTmp .if lpFileMemHeader invoke UnmapViewOfFile,lpFileMemHeader mov lpFileMemHeader,0 .endif invoke SetWindowText,hEditFileName,0 invoke SetWindowText,hEditMD5,0 mov dwOpenFileSize,0 invoke RtlZeroMemory,addr @stOFN,sizeof @stOFN mov @stOFN.lStructSize,sizeof @stOFN lea eax,szCurrentFilePath mov @stOFN.lpstrFile,eax mov @stOFN.nMaxFile,MAX_PATH mov @stOFN.Flags,OFN_FILEMUSTEXIST OR OFN_PATHMUSTEXIST invoke GetOpenFileName,addr @stOFN .if !eax jmp _NOPE .endif invoke SetWindowText,hEditFileName,addr szCurrentFilePath invoke RtlZeroMemory,addr @stSA,sizeof @stSA invoke CreateFile,addr szCurrentFilePath, GENERIC_READ,FILE_SHARE_DELETE or FILE_SHARE_READ or FILE_SHARE_WRITE,addr @stSA,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL ,0;FILE_FLAG_DELETE_ON_CLOSE or .if eax == INVALID_HANDLE_VALUE jmp _NOPE .endif mov @hOpenFile,eax invoke GetFileSize,@hOpenFile,addr @dwOpenFileSizeHigh mov dwOpenFileSize,eax .if !eax invoke CloseHandle,@hFileMap invoke CloseHandle,@hOpenFile jmp _NOPE .endif invoke CreateFileMapping,@hOpenFile,0,PAGE_READONLY,0,0,0 .if !eax invoke CloseHandle,@hOpenFile jmp _NOPE .endif mov @hFileMap,eax invoke MapViewOfFile,@hFileMap, FILE_MAP_READ,0,0,0 .if !eax invoke CloseHandle,@hFileMap invoke CloseHandle,@hOpenFile jmp _NOPE .endif mov lpFileMemHeader,eax invoke CloseHandle,@hFileMap invoke CloseHandle,@hOpenFile _NOPE: ret _OpenFileProc endp _LeftMov@MD5 macro _dwA,_dwB,x,s,t add eax,_dwA add eax,x add eax,t mov cl,s rol eax,cl add eax,_dwB endm ; F(x,y,z) = (x and y) or ((not x) and z) ; a =((a + F(b,c,d) + x + t) << s ) + b _FProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD and ebx,eax not eax and eax,ecx or eax,ebx _LeftMov@MD5 _dwA,_dwB,x,s,t endm ; G(x,y,z) = (x and z) or (y and (not z)) ; a = ((a + G(b,c,d) + x + t) << s) + b _GProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD and eax,ecx not ecx and ecx,ebx or eax,ecx _LeftMov@MD5 _dwA,_dwB,x,s,t endm ; H(x,y,z) = x xor y xor z ; a = ((a + H(b,c,d) + x + t) << s) + b _HProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD xor eax,ebx xor eax,ecx _LeftMov@MD5 _dwA,_dwB,x,s,t endm ; I(x,y,z) = y xor (x or (not z)) ; a = ((a + I(b,c,d) + x + t) << s) + b _IProc@MD5 macro _dwA,_dwB,_dwC,_dwD,x,s,t mov eax,_dwB mov ebx,_dwC mov ecx,_dwD not ecx or eax,ecx xor eax,ebx _LeftMov@MD5 _dwA,_dwB,x,s,t endm _dwA@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwA,@dwB,@dwC,@dwD,dword ptr [edi+_dwBitNumber*4],_ALeftBits,_dwTi mov @dwA,eax endm _dwB@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwB,@dwC,@dwD,@dwA,dword ptr [edi+_dwBitNumber*4],_BLeftBits,_dwTi mov @dwB,eax endm _dwC@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwC,@dwD,@dwA,@dwB,dword ptr [edi+_dwBitNumber*4],_CLeftBits,_dwTi mov @dwC,eax endm _dwD@MD5 macro _Function,_dwBitNumber,_dwTi _Function&@MD5 @dwD,@dwA,@dwB,@dwC,dword ptr [edi+_dwBitNumber*4],_DLeftBits,_dwTi mov @dwD,eax endm _MD5hashProc proc uses edi esi,_lpFileMem,_dwFileSize,_lpszMD5Buffer local @dwA,@dwB,@dwC,@dwD LOCAL @dwRotateMD5Count LOCAL @dwEndRotateMD5Count LOCAL @szBuffer1[128]:byte LOCAL @dwFTi[64]:dword LOCAL @bEndMD5 LOCAL @dbFileSizeInBuffer:byte LOCAL @dwTiCount LOCAL @dwTiN0 LOCAL @dwTiN1 LOCAL @dwTiN2 LOCAL @wCW:word LOCAL @dwTmp1 LOCAL @dwTmp2 ;初始化Ti mov @dwTiCount,1 mov @dwTiN1,10000000h mov @dwTiN2,10h lea edi,@dwFTi mov @wCW,0001011111111111b;设置近似值为剪裁掉尾数状态 wait fldcw @wCW @@: fild @dwTiCount fsin fabs fild @dwTiN1 fmul fist @dwTmp1 fild @dwTmp1 fsub fild @dwTiN2 fmul fistp @dwTmp2 fwait mov eax,@dwTmp1 shl eax,4 add eax,@dwTmp2 mov dword ptr [edi],eax inc @dwTiCount add edi,sizeof dword cmp @dwTiCount,65 jz @f jmp @b @@: xor al,al lea edi,@szBuffer1 mov ecx,sizeof @szBuffer1 cld rep stosb mov @bEndMD5,FALSE ;求得512取模及需要填充的数据 mov eax,_dwFileSize shr eax,6 mov @dwRotateMD5Count,eax ;模64后末尾字符串复制到缓冲区 lea edi,@szBuffer1 mov esi,_lpFileMem mov eax,_dwFileSize mov ecx,eax and eax,0ffffffc0h; add esi,eax and ecx,03fh;除以64求模 mov @dbFileSizeInBuffer,cl .if ecx cld rep movsb .endif mov byte ptr [edi],080h;消息末尾附1 ;后64位填充消息长度//转为处理@szBuffer1 lea edi,@szBuffer1 mov eax,_dwFileSize;ebx mov edx,eax shl eax,3 shr edx,29 mov cl,@dbFileSizeInBuffer;_dwFileSize .if cl < 56 mov @dwEndRotateMD5Count,1 mov dword ptr [edi+ 60],edx mov dword ptr [edi+ 56],eax .else mov @dwEndRotateMD5Count,2 mov dword ptr [edi+124],edx mov dword ptr [edi+120],eax .endif push 067452301h pop @dwA push 0efcdab89h pop @dwB push 098badcfeh pop @dwC push 010325476h pop @dwD mov edi,_lpFileMem _Rotate: mov ecx, @dwRotateMD5Count .while ecx push ecx push @dwD push @dwC push @dwB push @dwA xor esi,esi .while esi < 64 mov eax,@dwB mov ebx,@dwC mov ecx,@dwD .if esi < 16;F and ebx,eax not eax and eax,ecx or eax,ebx .elseif esi < 32;G and eax,ecx not ecx and ecx,ebx or eax,ecx .elseif esi < 48;H xor eax,ebx xor eax,ecx .else ;I not ecx or eax,ecx xor eax,ebx .endif add eax,@dwA movzx ecx,byte ptr [offset dwFOffset + esi ] add eax,dword ptr [edi+ ecx * sizeof dword];x lea ecx,@dwFTi add eax,dword ptr [ecx + esi * sizeof dword];t mov ecx,esi shr ecx,2 and ecx,12 mov edx,esi and edx,3 mov cl,byte ptr [offset dwFLeftMove + edx + ecx] rol eax,cl add eax,@dwB xchg eax,@dwB xchg eax,@dwC xchg eax,@dwD xchg eax,@dwA inc esi .endw pop eax add @dwA,eax pop eax add @dwB,eax pop eax add @dwC,eax pop eax add @dwD,eax add edi,16*sizeof dword pop ecx dec ecx .endw .if @bEndMD5 == TRUE jmp @f .endif push @dwEndRotateMD5Count pop @dwRotateMD5Count lea edi,@szBuffer1 mov @bEndMD5,TRUE jmp _Rotate @@: mov eax,@dwA bswap eax mov ebx,@dwB bswap ebx mov ecx,@dwC bswap ecx mov edx,@dwD bswap edx jmp @f szMD5Format@_MD5hashProc db '%.8x%.8x%.8x%.8x',0 @@: invoke wsprintf,_lpszMD5Buffer,addr szMD5Format@_MD5hashProc,eax,ebx,ecx,edx ret _MD5hashProc endp |
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