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[ASM] MD5 Algorithm
#1
الگوریتم md5 به زبان اسمبلی
کد:
;____________________________________________________________________________________________________________________________

; MD5hash : hashes a string using the md5 algorithm

;¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

; input  :

;  ptBuffer: pointer to the string buffer (doesn' t have to be zero-terminated, must be at least 64bytes large)

;  dtBufferLength: length of the buffer

;  ptMD5Result: pointer to a MD5RESULT structure

; output :

;  ptMD5Result: contains the hash dwords in dtA, dtB, dtC, dtD

;____________________________________________________________________________________________________________________________

; roy|fleur

;¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯



MD5hash            proto    :dword,:dword,:dword



MD5RESULT        STRUCT

    dtA        dd    ?

    dtB        dd    ?

    dtC        dd    ?

    dtD        dd    ?

MD5RESULT        ENDS



FF            MACRO    dta,dtb,dtc,dtd,x,s,t                ; a = b + ((a + F(b,c,d) + x + t) << s )



            mov    eax,dtb

            mov    ebx,dtc

            mov    ecx,dtd



            ; F(x,y,z) = (x and y) or ((not x) and z)

            and    ebx,eax

            not    eax

            and    eax,ecx

            or    eax,ebx



            add    eax,dta

            add    eax,x

            add    eax,t



            mov    cl,s

            rol    eax,cl



            add    eax,dtb



            mov    dta,eax



ENDM



GG            MACRO    dta,dtb,dtc,dtd,x,s,t                ; a = b + ((a + G(b,c,d) + x + t) << s)



            mov    eax,dtb

            mov    ebx,dtc

            mov    ecx,dtd



            ; G(x,y,z) = (x and z) or (y and (not z))

            and    eax,ecx

            not    ecx

            and    ecx,ebx

            or    eax,ecx



            add    eax,dta

            add    eax,x

            add    eax,t



            mov    cl,s

            rol    eax,cl



            add    eax,dtb



            mov    dta,eax



ENDM



HH            MACRO    dta,dtb,dtc,dtd,x,s,t                ; a = b + ((a + H(b,c,d) + x + t) << s)



            mov    eax,dtb

            mov    ebx,dtc

            mov    ecx,dtd



            ; H(x,y,z) = x xor y xor z

            xor    eax,ebx

            xor    eax,ecx



            add    eax,dta

            add    eax,x

            add    eax,t



            mov    cl,s

            rol    eax,cl



            add    eax,dtb



            mov    dta,eax



ENDM



II            MACRO    dta,dtb,dtc,dtd,x,s,t                ; a = b + ((a + I(b,c,d) + x + t) << s)



            mov    eax,dtb

            mov    ebx,dtc

            mov    ecx,dtd



            ; I(x,y,z) = y xor (x or (not z))

            not    ecx

            or    eax,ecx

            xor    eax,ebx



            add    eax,dta

            add    eax,x

            add    eax,t



            mov    cl,s

            rol    eax,cl



            add    eax,dtb



            mov    dta,eax



ENDM



.code



MD5hash            proc    uses eax ebx ecx edx edi esi,ptBuffer:dword,dtBufferLength:dword,ptMD5Result:dword

            local    dta:dword,dtb:dword,dtc:dword,dtd:dword



            ; phase I · padding

            mov    edi,ptBuffer

            mov    eax,dtBufferLength



            inc    eax

            add    edi,eax

            mov    byte ptr [edi-1],080h



            xor    edx,edx



            mov    ebx,64

            div    ebx



            neg    edx

            add    edx,64



            cmp    edx,8

            jae    @f



            add    edx,64



@@:            mov    ecx,edx

            xor    al,al

            rep    stosb



            mov    eax,dtBufferLength



            inc    edx

            add    dtBufferLength,edx



            xor    edx,edx



            mov    ebx,8

            mul    ebx



            mov    dword ptr [edi-8],eax

            mov    dword ptr [edi-4],edx



            mov    edx,dtBufferLength



            mov    edi,ptBuffer



            ; phase II · chaining variables initialization

            mov    esi,ptMD5Result

            assume    esi:ptr MD5RESULT



            mov    [esi].dtA,067452301h

            mov    [esi].dtB,0efcdab89h

            mov    [esi].dtC,098badcfeh

            mov    [esi].dtD,010325476h



            ; phase III · hashing

hashloop:        mov    eax,[esi].dtA

            mov    dta,eax

            mov    eax,[esi].dtB

            mov    dtb,eax

            mov    eax,[esi].dtC

            mov    dtc,eax

            mov    eax,[esi].dtD

            mov    dtd,eax



            ; round 1

            FF    dta,dtb,dtc,dtd,dword ptr [edi+00*4],07,0d76aa478h

            FF    dtd,dta,dtb,dtc,dword ptr [edi+01*4],12,0e8c7b756h

            FF    dtc,dtd,dta,dtb,dword ptr [edi+02*4],17,0242070dbh

            FF    dtb,dtc,dtd,dta,dword ptr [edi+03*4],22,0c1bdceeeh

            FF    dta,dtb,dtc,dtd,dword ptr [edi+04*4],07,0f57c0fafh

            FF    dtd,dta,dtb,dtc,dword ptr [edi+05*4],12,04787c62ah

            FF    dtc,dtd,dta,dtb,dword ptr [edi+06*4],17,0a8304613h

            FF    dtb,dtc,dtd,dta,dword ptr [edi+07*4],22,0fd469501h

            FF    dta,dtb,dtc,dtd,dword ptr [edi+08*4],07,0698098d8h

            FF    dtd,dta,dtb,dtc,dword ptr [edi+09*4],12,08b44f7afh

            FF    dtc,dtd,dta,dtb,dword ptr [edi+10*4],17,0ffff5bb1h

            FF    dtb,dtc,dtd,dta,dword ptr [edi+11*4],22,0895cd7beh

            FF    dta,dtb,dtc,dtd,dword ptr [edi+12*4],07,06b901122h

            FF    dtd,dta,dtb,dtc,dword ptr [edi+13*4],12,0fd987193h

            FF    dtc,dtd,dta,dtb,dword ptr [edi+14*4],17,0a679438eh

            FF    dtb,dtc,dtd,dta,dword ptr [edi+15*4],22,049b40821h



            ; round 2

            GG    dta,dtb,dtc,dtd,dword ptr [edi+01*4],05,0f61e2562h

            GG    dtd,dta,dtb,dtc,dword ptr [edi+06*4],09,0c040b340h

            GG    dtc,dtd,dta,dtb,dword ptr [edi+11*4],14,0265e5a51h

            GG    dtb,dtc,dtd,dta,dword ptr [edi+00*4],20,0e9b6c7aah

            GG    dta,dtb,dtc,dtd,dword ptr [edi+05*4],05,0d62f105dh

            GG    dtd,dta,dtb,dtc,dword ptr [edi+10*4],09,002441453h

            GG    dtc,dtd,dta,dtb,dword ptr [edi+15*4],14,0d8a1e681h

            GG    dtb,dtc,dtd,dta,dword ptr [edi+04*4],20,0e7d3fbc8h

            GG    dta,dtb,dtc,dtd,dword ptr [edi+09*4],05,021e1cde6h

            GG    dtd,dta,dtb,dtc,dword ptr [edi+14*4],09,0c33707d6h

            GG    dtc,dtd,dta,dtb,dword ptr [edi+03*4],14,0f4d50d87h

            GG    dtb,dtc,dtd,dta,dword ptr [edi+08*4],20,0455a14edh

            GG    dta,dtb,dtc,dtd,dword ptr [edi+13*4],05,0a9e3e905h

            GG    dtd,dta,dtb,dtc,dword ptr [edi+02*4],09,0fcefa3f8h

            GG    dtc,dtd,dta,dtb,dword ptr [edi+07*4],14,0676f02d9h

            GG    dtb,dtc,dtd,dta,dword ptr [edi+12*4],20,08d2a4c8ah



            ; round 3

            HH    dta,dtb,dtc,dtd,dword ptr [edi+05*4],04,0fffa3942h

            HH    dtd,dta,dtb,dtc,dword ptr [edi+08*4],11,08771f681h

            HH    dtc,dtd,dta,dtb,dword ptr [edi+11*4],16,06d9d6122h

            HH    dtb,dtc,dtd,dta,dword ptr [edi+14*4],23,0fde5380ch

            HH    dta,dtb,dtc,dtd,dword ptr [edi+01*4],04,0a4beea44h

            HH    dtd,dta,dtb,dtc,dword ptr [edi+04*4],11,04bdecfa9h

            HH    dtc,dtd,dta,dtb,dword ptr [edi+07*4],16,0f6bb4b60h

            HH    dtb,dtc,dtd,dta,dword ptr [edi+10*4],23,0bebfbc70h

            HH    dta,dtb,dtc,dtd,dword ptr [edi+13*4],04,0289b7ec6h

            HH    dtd,dta,dtb,dtc,dword ptr [edi+00*4],11,0eaa127fah

            HH    dtc,dtd,dta,dtb,dword ptr [edi+03*4],16,0d4ef3085h

            HH    dtb,dtc,dtd,dta,dword ptr [edi+06*4],23,004881d05h

            HH    dta,dtb,dtc,dtd,dword ptr [edi+09*4],04,0d9d4d039h

            HH    dtd,dta,dtb,dtc,dword ptr [edi+12*4],11,0e6db99e5h

            HH    dtc,dtd,dta,dtb,dword ptr [edi+15*4],16,01fa27cf8h

            HH    dtb,dtc,dtd,dta,dword ptr [edi+02*4],23,0c4ac5665h



            ; round 4

            II    dta,dtb,dtc,dtd,dword ptr [edi+00*4],06,0f4292244h

            II    dtd,dta,dtb,dtc,dword ptr [edi+07*4],10,0432aff97h

            II    dtc,dtd,dta,dtb,dword ptr [edi+14*4],15,0ab9423a7h

            II    dtb,dtc,dtd,dta,dword ptr [edi+05*4],21,0fc93a039h

            II    dta,dtb,dtc,dtd,dword ptr [edi+12*4],06,0655b59c3h

            II    dtd,dta,dtb,dtc,dword ptr [edi+03*4],10,08f0ccc92h

            II    dtc,dtd,dta,dtb,dword ptr [edi+10*4],15,0ffeff47dh

            II    dtb,dtc,dtd,dta,dword ptr [edi+01*4],21,085845dd1h

            II    dta,dtb,dtc,dtd,dword ptr [edi+08*4],06,06fa87e4fh

            II    dtd,dta,dtb,dtc,dword ptr [edi+15*4],10,0fe2ce6e0h

            II    dtc,dtd,dta,dtb,dword ptr [edi+06*4],15,0a3014314h

            II    dtb,dtc,dtd,dta,dword ptr [edi+13*4],21,04e0811a1h

            II    dta,dtb,dtc,dtd,dword ptr [edi+04*4],06,0f7537e82h

            II    dtd,dta,dtb,dtc,dword ptr [edi+11*4],10,0bd3af235h

            II    dtc,dtd,dta,dtb,dword ptr [edi+02*4],15,02ad7d2bbh

            II    dtb,dtc,dtd,dta,dword ptr [edi+09*4],21,0eb86d391h



            mov    eax,dta

            add    [esi].dtA,eax

            mov    eax,dtb

            add    [esi].dtB,eax

            mov    eax,dtc

            add    [esi].dtC,eax

            mov    eax,dtd

            add    [esi].dtD,eax



            add    edi,64



            sub    edx,64

            jnz    hashloop



            ; phase IV · results



            mov    ecx,4



@@:            mov    eax,dword ptr [esi]

            xchg    al,ah

            rol    eax,16

            xchg    al,ah

            mov    dword ptr [esi],eax



            add    esi,4



            loop    @b



            ret



MD5hash            endpDownload:

Download:


Code:
کد:
http://win32assembly.online.fr/files/md5asm.zip
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