3133 lines
64 KiB
NASM
3133 lines
64 KiB
NASM
; Don't even think of reading this code
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; It was automatically generated by des-586.pl
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; Which is a perl program used to generate the x86 assember for
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; any of elf, a.out, BSDI,Win32, or Solaris
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; eric <eay@cryptsoft.com>
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;
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TITLE des-586.asm
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.386
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.model FLAT
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_TEXT SEGMENT
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PUBLIC _des_encrypt
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EXTRN _des_SPtrans:DWORD
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_des_encrypt PROC NEAR
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push esi
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push edi
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;
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; Load the 2 words
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mov esi, DWORD PTR 12[esp]
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xor ecx, ecx
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push ebx
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push ebp
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mov eax, DWORD PTR [esi]
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mov ebx, DWORD PTR 28[esp]
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mov edi, DWORD PTR 4[esi]
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;
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; IP
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rol eax, 4
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mov esi, eax
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xor eax, edi
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and eax, 0f0f0f0f0h
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xor esi, eax
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xor edi, eax
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;
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rol edi, 20
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mov eax, edi
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xor edi, esi
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and edi, 0fff0000fh
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xor eax, edi
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xor esi, edi
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;
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rol eax, 14
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mov edi, eax
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xor eax, esi
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and eax, 033333333h
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xor edi, eax
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xor esi, eax
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;
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rol esi, 22
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mov eax, esi
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xor esi, edi
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and esi, 003fc03fch
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xor eax, esi
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xor edi, esi
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;
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rol eax, 9
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mov esi, eax
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xor eax, edi
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and eax, 0aaaaaaaah
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xor esi, eax
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xor edi, eax
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;
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rol edi, 1
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mov ebp, DWORD PTR 24[esp]
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cmp ebx, 0
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je $L000start_decrypt
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;
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; Round 0
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mov eax, DWORD PTR [ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 4[ebp]
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xor eax, esi
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xor edx, esi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor edi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor edi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor edi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor edi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor edi, ebx
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;
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; Round 1
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mov eax, DWORD PTR 8[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 12[ebp]
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xor eax, edi
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xor edx, edi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor esi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor esi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor esi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor esi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor esi, ebx
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;
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; Round 2
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mov eax, DWORD PTR 16[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 20[ebp]
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xor eax, esi
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xor edx, esi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor edi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor edi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor edi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor edi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor edi, ebx
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;
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; Round 3
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mov eax, DWORD PTR 24[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 28[ebp]
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xor eax, edi
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xor edx, edi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor esi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor esi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor esi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor esi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor esi, ebx
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;
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; Round 4
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mov eax, DWORD PTR 32[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 36[ebp]
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xor eax, esi
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xor edx, esi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor edi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor edi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor edi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor edi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor edi, ebx
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;
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; Round 5
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mov eax, DWORD PTR 40[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 44[ebp]
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xor eax, edi
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xor edx, edi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor esi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor esi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor esi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor esi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor esi, ebx
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;
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; Round 6
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mov eax, DWORD PTR 48[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 52[ebp]
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xor eax, esi
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xor edx, esi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor edi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor edi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor edi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor edi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor edi, ebx
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;
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; Round 7
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mov eax, DWORD PTR 56[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 60[ebp]
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xor eax, edi
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xor edx, edi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor esi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor esi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor esi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor esi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor esi, ebx
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;
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; Round 8
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mov eax, DWORD PTR 64[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 68[ebp]
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xor eax, esi
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xor edx, esi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor edi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor edi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor edi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor edi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor edi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor edi, ebx
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;
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; Round 9
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mov eax, DWORD PTR 72[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 76[ebp]
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xor eax, edi
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xor edx, edi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor esi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor esi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor esi, ebp
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mov bl, ah
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shr edx, 16
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mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor esi, ebp
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mov ebp, DWORD PTR 24[esp]
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mov cl, dh
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and eax, 0ffh
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and edx, 0ffh
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mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor esi, ebx
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mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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xor esi, ebx
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;
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; Round 10
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mov eax, DWORD PTR 80[ebp]
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xor ebx, ebx
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mov edx, DWORD PTR 84[ebp]
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xor eax, esi
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xor edx, esi
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and eax, 0fcfcfcfch
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and edx, 0cfcfcfcfh
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mov bl, al
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mov cl, ah
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ror edx, 4
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mov ebp, DWORD PTR _des_SPtrans[ebx]
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mov bl, dl
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xor edi, ebp
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mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor edi, ebp
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mov cl, dh
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shr eax, 16
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mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
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xor edi, ebp
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mov bl, ah
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shr edx, 16
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|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
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xor edi, ebp
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|
mov ebp, DWORD PTR 24[esp]
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|
mov cl, dh
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|
and eax, 0ffh
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|
and edx, 0ffh
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|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
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xor edi, ebx
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|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
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xor edi, ebx
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|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
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xor edi, ebx
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|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
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|
xor edi, ebx
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|
;
|
|
; Round 11
|
|
mov eax, DWORD PTR 88[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 92[ebp]
|
|
xor eax, edi
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|
xor edx, edi
|
|
and eax, 0fcfcfcfch
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|
and edx, 0cfcfcfcfh
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|
mov bl, al
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|
mov cl, ah
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|
ror edx, 4
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|
mov ebp, DWORD PTR _des_SPtrans[ebx]
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|
mov bl, dl
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|
xor esi, ebp
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|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
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xor esi, ebp
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|
mov cl, dh
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|
shr eax, 16
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|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 12
|
|
mov eax, DWORD PTR 96[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 100[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 13
|
|
mov eax, DWORD PTR 104[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 108[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 14
|
|
mov eax, DWORD PTR 112[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 116[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 15
|
|
mov eax, DWORD PTR 120[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 124[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
jmp $L001end
|
|
$L000start_decrypt:
|
|
;
|
|
; Round 15
|
|
mov eax, DWORD PTR 120[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 124[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 14
|
|
mov eax, DWORD PTR 112[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 116[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 13
|
|
mov eax, DWORD PTR 104[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 108[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 12
|
|
mov eax, DWORD PTR 96[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 100[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 11
|
|
mov eax, DWORD PTR 88[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 92[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 10
|
|
mov eax, DWORD PTR 80[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 84[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 9
|
|
mov eax, DWORD PTR 72[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 76[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 8
|
|
mov eax, DWORD PTR 64[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 68[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 7
|
|
mov eax, DWORD PTR 56[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 60[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 6
|
|
mov eax, DWORD PTR 48[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 52[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 5
|
|
mov eax, DWORD PTR 40[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 44[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 4
|
|
mov eax, DWORD PTR 32[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 36[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 3
|
|
mov eax, DWORD PTR 24[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 28[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 2
|
|
mov eax, DWORD PTR 16[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 20[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 1
|
|
mov eax, DWORD PTR 8[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 12[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 0
|
|
mov eax, DWORD PTR [ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 4[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
$L001end:
|
|
;
|
|
; FP
|
|
mov edx, DWORD PTR 20[esp]
|
|
ror esi, 1
|
|
mov eax, edi
|
|
xor edi, esi
|
|
and edi, 0aaaaaaaah
|
|
xor eax, edi
|
|
xor esi, edi
|
|
;
|
|
rol eax, 23
|
|
mov edi, eax
|
|
xor eax, esi
|
|
and eax, 003fc03fch
|
|
xor edi, eax
|
|
xor esi, eax
|
|
;
|
|
rol edi, 10
|
|
mov eax, edi
|
|
xor edi, esi
|
|
and edi, 033333333h
|
|
xor eax, edi
|
|
xor esi, edi
|
|
;
|
|
rol esi, 18
|
|
mov edi, esi
|
|
xor esi, eax
|
|
and esi, 0fff0000fh
|
|
xor edi, esi
|
|
xor eax, esi
|
|
;
|
|
rol edi, 12
|
|
mov esi, edi
|
|
xor edi, eax
|
|
and edi, 0f0f0f0f0h
|
|
xor esi, edi
|
|
xor eax, edi
|
|
;
|
|
ror eax, 4
|
|
mov DWORD PTR [edx],eax
|
|
mov DWORD PTR 4[edx],esi
|
|
pop ebp
|
|
pop ebx
|
|
pop edi
|
|
pop esi
|
|
ret
|
|
_des_encrypt ENDP
|
|
_TEXT ENDS
|
|
_TEXT SEGMENT
|
|
PUBLIC _des_encrypt2
|
|
EXTRN _des_SPtrans:DWORD
|
|
_des_encrypt2 PROC NEAR
|
|
push esi
|
|
push edi
|
|
;
|
|
; Load the 2 words
|
|
mov eax, DWORD PTR 12[esp]
|
|
xor ecx, ecx
|
|
push ebx
|
|
push ebp
|
|
mov esi, DWORD PTR [eax]
|
|
mov ebx, DWORD PTR 28[esp]
|
|
rol esi, 3
|
|
mov edi, DWORD PTR 4[eax]
|
|
rol edi, 3
|
|
mov ebp, DWORD PTR 24[esp]
|
|
cmp ebx, 0
|
|
je $L002start_decrypt
|
|
;
|
|
; Round 0
|
|
mov eax, DWORD PTR [ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 4[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 1
|
|
mov eax, DWORD PTR 8[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 12[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 2
|
|
mov eax, DWORD PTR 16[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 20[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 3
|
|
mov eax, DWORD PTR 24[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 28[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 4
|
|
mov eax, DWORD PTR 32[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 36[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 5
|
|
mov eax, DWORD PTR 40[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 44[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 6
|
|
mov eax, DWORD PTR 48[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 52[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 7
|
|
mov eax, DWORD PTR 56[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 60[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 8
|
|
mov eax, DWORD PTR 64[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 68[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 9
|
|
mov eax, DWORD PTR 72[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 76[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 10
|
|
mov eax, DWORD PTR 80[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 84[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 11
|
|
mov eax, DWORD PTR 88[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 92[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 12
|
|
mov eax, DWORD PTR 96[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 100[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 13
|
|
mov eax, DWORD PTR 104[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 108[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 14
|
|
mov eax, DWORD PTR 112[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 116[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 15
|
|
mov eax, DWORD PTR 120[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 124[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
jmp $L003end
|
|
$L002start_decrypt:
|
|
;
|
|
; Round 15
|
|
mov eax, DWORD PTR 120[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 124[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 14
|
|
mov eax, DWORD PTR 112[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 116[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 13
|
|
mov eax, DWORD PTR 104[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 108[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 12
|
|
mov eax, DWORD PTR 96[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 100[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 11
|
|
mov eax, DWORD PTR 88[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 92[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 10
|
|
mov eax, DWORD PTR 80[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 84[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 9
|
|
mov eax, DWORD PTR 72[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 76[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 8
|
|
mov eax, DWORD PTR 64[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 68[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 7
|
|
mov eax, DWORD PTR 56[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 60[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 6
|
|
mov eax, DWORD PTR 48[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 52[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 5
|
|
mov eax, DWORD PTR 40[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 44[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 4
|
|
mov eax, DWORD PTR 32[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 36[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 3
|
|
mov eax, DWORD PTR 24[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 28[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 2
|
|
mov eax, DWORD PTR 16[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 20[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
;
|
|
; Round 1
|
|
mov eax, DWORD PTR 8[ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 12[ebp]
|
|
xor eax, esi
|
|
xor edx, esi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor edi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor edi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor edi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor edi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor edi, ebx
|
|
;
|
|
; Round 0
|
|
mov eax, DWORD PTR [ebp]
|
|
xor ebx, ebx
|
|
mov edx, DWORD PTR 4[ebp]
|
|
xor eax, edi
|
|
xor edx, edi
|
|
and eax, 0fcfcfcfch
|
|
and edx, 0cfcfcfcfh
|
|
mov bl, al
|
|
mov cl, ah
|
|
ror edx, 4
|
|
mov ebp, DWORD PTR _des_SPtrans[ebx]
|
|
mov bl, dl
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR _des_SPtrans[0200h+ecx]
|
|
xor esi, ebp
|
|
mov cl, dh
|
|
shr eax, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0100h+ebx]
|
|
xor esi, ebp
|
|
mov bl, ah
|
|
shr edx, 16
|
|
mov ebp, DWORD PTR _des_SPtrans[0300h+ecx]
|
|
xor esi, ebp
|
|
mov ebp, DWORD PTR 24[esp]
|
|
mov cl, dh
|
|
and eax, 0ffh
|
|
and edx, 0ffh
|
|
mov ebx, DWORD PTR _des_SPtrans[0600h+ebx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0700h+ecx]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0400h+eax]
|
|
xor esi, ebx
|
|
mov ebx, DWORD PTR _des_SPtrans[0500h+edx]
|
|
xor esi, ebx
|
|
$L003end:
|
|
;
|
|
; Fixup
|
|
ror edi, 3
|
|
mov eax, DWORD PTR 20[esp]
|
|
ror esi, 3
|
|
mov DWORD PTR [eax],edi
|
|
mov DWORD PTR 4[eax],esi
|
|
pop ebp
|
|
pop ebx
|
|
pop edi
|
|
pop esi
|
|
ret
|
|
_des_encrypt2 ENDP
|
|
_TEXT ENDS
|
|
_TEXT SEGMENT
|
|
PUBLIC _des_encrypt3
|
|
|
|
_des_encrypt3 PROC NEAR
|
|
push ebx
|
|
mov ebx, DWORD PTR 8[esp]
|
|
push ebp
|
|
push esi
|
|
push edi
|
|
;
|
|
; Load the data words
|
|
mov edi, DWORD PTR [ebx]
|
|
mov esi, DWORD PTR 4[ebx]
|
|
sub esp, 12
|
|
;
|
|
; IP
|
|
rol edi, 4
|
|
mov edx, edi
|
|
xor edi, esi
|
|
and edi, 0f0f0f0f0h
|
|
xor edx, edi
|
|
xor esi, edi
|
|
;
|
|
rol esi, 20
|
|
mov edi, esi
|
|
xor esi, edx
|
|
and esi, 0fff0000fh
|
|
xor edi, esi
|
|
xor edx, esi
|
|
;
|
|
rol edi, 14
|
|
mov esi, edi
|
|
xor edi, edx
|
|
and edi, 033333333h
|
|
xor esi, edi
|
|
xor edx, edi
|
|
;
|
|
rol edx, 22
|
|
mov edi, edx
|
|
xor edx, esi
|
|
and edx, 003fc03fch
|
|
xor edi, edx
|
|
xor esi, edx
|
|
;
|
|
rol edi, 9
|
|
mov edx, edi
|
|
xor edi, esi
|
|
and edi, 0aaaaaaaah
|
|
xor edx, edi
|
|
xor esi, edi
|
|
;
|
|
ror edx, 3
|
|
ror esi, 2
|
|
mov DWORD PTR 4[ebx],esi
|
|
mov eax, DWORD PTR 36[esp]
|
|
mov DWORD PTR [ebx],edx
|
|
mov edi, DWORD PTR 40[esp]
|
|
mov esi, DWORD PTR 44[esp]
|
|
mov DWORD PTR 8[esp],1
|
|
mov DWORD PTR 4[esp],eax
|
|
mov DWORD PTR [esp],ebx
|
|
call _des_encrypt2
|
|
mov DWORD PTR 8[esp],0
|
|
mov DWORD PTR 4[esp],edi
|
|
mov DWORD PTR [esp],ebx
|
|
call _des_encrypt2
|
|
mov DWORD PTR 8[esp],1
|
|
mov DWORD PTR 4[esp],esi
|
|
mov DWORD PTR [esp],ebx
|
|
call _des_encrypt2
|
|
add esp, 12
|
|
mov edi, DWORD PTR [ebx]
|
|
mov esi, DWORD PTR 4[ebx]
|
|
;
|
|
; FP
|
|
rol esi, 2
|
|
rol edi, 3
|
|
mov eax, edi
|
|
xor edi, esi
|
|
and edi, 0aaaaaaaah
|
|
xor eax, edi
|
|
xor esi, edi
|
|
;
|
|
rol eax, 23
|
|
mov edi, eax
|
|
xor eax, esi
|
|
and eax, 003fc03fch
|
|
xor edi, eax
|
|
xor esi, eax
|
|
;
|
|
rol edi, 10
|
|
mov eax, edi
|
|
xor edi, esi
|
|
and edi, 033333333h
|
|
xor eax, edi
|
|
xor esi, edi
|
|
;
|
|
rol esi, 18
|
|
mov edi, esi
|
|
xor esi, eax
|
|
and esi, 0fff0000fh
|
|
xor edi, esi
|
|
xor eax, esi
|
|
;
|
|
rol edi, 12
|
|
mov esi, edi
|
|
xor edi, eax
|
|
and edi, 0f0f0f0f0h
|
|
xor esi, edi
|
|
xor eax, edi
|
|
;
|
|
ror eax, 4
|
|
mov DWORD PTR [ebx],eax
|
|
mov DWORD PTR 4[ebx],esi
|
|
pop edi
|
|
pop esi
|
|
pop ebp
|
|
pop ebx
|
|
ret
|
|
_des_encrypt3 ENDP
|
|
_TEXT ENDS
|
|
_TEXT SEGMENT
|
|
PUBLIC _des_decrypt3
|
|
|
|
_des_decrypt3 PROC NEAR
|
|
push ebx
|
|
mov ebx, DWORD PTR 8[esp]
|
|
push ebp
|
|
push esi
|
|
push edi
|
|
;
|
|
; Load the data words
|
|
mov edi, DWORD PTR [ebx]
|
|
mov esi, DWORD PTR 4[ebx]
|
|
sub esp, 12
|
|
;
|
|
; IP
|
|
rol edi, 4
|
|
mov edx, edi
|
|
xor edi, esi
|
|
and edi, 0f0f0f0f0h
|
|
xor edx, edi
|
|
xor esi, edi
|
|
;
|
|
rol esi, 20
|
|
mov edi, esi
|
|
xor esi, edx
|
|
and esi, 0fff0000fh
|
|
xor edi, esi
|
|
xor edx, esi
|
|
;
|
|
rol edi, 14
|
|
mov esi, edi
|
|
xor edi, edx
|
|
and edi, 033333333h
|
|
xor esi, edi
|
|
xor edx, edi
|
|
;
|
|
rol edx, 22
|
|
mov edi, edx
|
|
xor edx, esi
|
|
and edx, 003fc03fch
|
|
xor edi, edx
|
|
xor esi, edx
|
|
;
|
|
rol edi, 9
|
|
mov edx, edi
|
|
xor edi, esi
|
|
and edi, 0aaaaaaaah
|
|
xor edx, edi
|
|
xor esi, edi
|
|
;
|
|
ror edx, 3
|
|
ror esi, 2
|
|
mov DWORD PTR 4[ebx],esi
|
|
mov esi, DWORD PTR 36[esp]
|
|
mov DWORD PTR [ebx],edx
|
|
mov edi, DWORD PTR 40[esp]
|
|
mov eax, DWORD PTR 44[esp]
|
|
mov DWORD PTR 8[esp],0
|
|
mov DWORD PTR 4[esp],eax
|
|
mov DWORD PTR [esp],ebx
|
|
call _des_encrypt2
|
|
mov DWORD PTR 8[esp],1
|
|
mov DWORD PTR 4[esp],edi
|
|
mov DWORD PTR [esp],ebx
|
|
call _des_encrypt2
|
|
mov DWORD PTR 8[esp],0
|
|
mov DWORD PTR 4[esp],esi
|
|
mov DWORD PTR [esp],ebx
|
|
call _des_encrypt2
|
|
add esp, 12
|
|
mov edi, DWORD PTR [ebx]
|
|
mov esi, DWORD PTR 4[ebx]
|
|
;
|
|
; FP
|
|
rol esi, 2
|
|
rol edi, 3
|
|
mov eax, edi
|
|
xor edi, esi
|
|
and edi, 0aaaaaaaah
|
|
xor eax, edi
|
|
xor esi, edi
|
|
;
|
|
rol eax, 23
|
|
mov edi, eax
|
|
xor eax, esi
|
|
and eax, 003fc03fch
|
|
xor edi, eax
|
|
xor esi, eax
|
|
;
|
|
rol edi, 10
|
|
mov eax, edi
|
|
xor edi, esi
|
|
and edi, 033333333h
|
|
xor eax, edi
|
|
xor esi, edi
|
|
;
|
|
rol esi, 18
|
|
mov edi, esi
|
|
xor esi, eax
|
|
and esi, 0fff0000fh
|
|
xor edi, esi
|
|
xor eax, esi
|
|
;
|
|
rol edi, 12
|
|
mov esi, edi
|
|
xor edi, eax
|
|
and edi, 0f0f0f0f0h
|
|
xor esi, edi
|
|
xor eax, edi
|
|
;
|
|
ror eax, 4
|
|
mov DWORD PTR [ebx],eax
|
|
mov DWORD PTR 4[ebx],esi
|
|
pop edi
|
|
pop esi
|
|
pop ebp
|
|
pop ebx
|
|
ret
|
|
_des_decrypt3 ENDP
|
|
_TEXT ENDS
|
|
_TEXT SEGMENT
|
|
PUBLIC _des_ncbc_encrypt
|
|
|
|
_des_ncbc_encrypt PROC NEAR
|
|
;
|
|
push ebp
|
|
push ebx
|
|
push esi
|
|
push edi
|
|
mov ebp, DWORD PTR 28[esp]
|
|
; getting iv ptr from parameter 4
|
|
mov ebx, DWORD PTR 36[esp]
|
|
mov esi, DWORD PTR [ebx]
|
|
mov edi, DWORD PTR 4[ebx]
|
|
push edi
|
|
push esi
|
|
push edi
|
|
push esi
|
|
mov ebx, esp
|
|
mov esi, DWORD PTR 36[esp]
|
|
mov edi, DWORD PTR 40[esp]
|
|
; getting encrypt flag from parameter 5
|
|
mov ecx, DWORD PTR 56[esp]
|
|
; get and push parameter 5
|
|
push ecx
|
|
; get and push parameter 3
|
|
mov eax, DWORD PTR 52[esp]
|
|
push eax
|
|
push ebx
|
|
cmp ecx, 0
|
|
jz $L004decrypt
|
|
and ebp, 4294967288
|
|
mov eax, DWORD PTR 12[esp]
|
|
mov ebx, DWORD PTR 16[esp]
|
|
jz $L005encrypt_finish
|
|
L006encrypt_loop:
|
|
mov ecx, DWORD PTR [esi]
|
|
mov edx, DWORD PTR 4[esi]
|
|
xor eax, ecx
|
|
xor ebx, edx
|
|
mov DWORD PTR 12[esp],eax
|
|
mov DWORD PTR 16[esp],ebx
|
|
call _des_encrypt
|
|
mov eax, DWORD PTR 12[esp]
|
|
mov ebx, DWORD PTR 16[esp]
|
|
mov DWORD PTR [edi],eax
|
|
mov DWORD PTR 4[edi],ebx
|
|
add esi, 8
|
|
add edi, 8
|
|
sub ebp, 8
|
|
jnz L006encrypt_loop
|
|
$L005encrypt_finish:
|
|
mov ebp, DWORD PTR 56[esp]
|
|
and ebp, 7
|
|
jz $L007finish
|
|
xor ecx, ecx
|
|
xor edx, edx
|
|
mov ebp, DWORD PTR $L008cbc_enc_jmp_table[ebp*4]
|
|
jmp ebp
|
|
L009ej7:
|
|
mov dh, BYTE PTR 6[esi]
|
|
shl edx, 8
|
|
L010ej6:
|
|
mov dh, BYTE PTR 5[esi]
|
|
L011ej5:
|
|
mov dl, BYTE PTR 4[esi]
|
|
L012ej4:
|
|
mov ecx, DWORD PTR [esi]
|
|
jmp $L013ejend
|
|
L014ej3:
|
|
mov ch, BYTE PTR 2[esi]
|
|
shl ecx, 8
|
|
L015ej2:
|
|
mov ch, BYTE PTR 1[esi]
|
|
L016ej1:
|
|
mov cl, BYTE PTR [esi]
|
|
$L013ejend:
|
|
xor eax, ecx
|
|
xor ebx, edx
|
|
mov DWORD PTR 12[esp],eax
|
|
mov DWORD PTR 16[esp],ebx
|
|
call _des_encrypt
|
|
mov eax, DWORD PTR 12[esp]
|
|
mov ebx, DWORD PTR 16[esp]
|
|
mov DWORD PTR [edi],eax
|
|
mov DWORD PTR 4[edi],ebx
|
|
jmp $L007finish
|
|
$L004decrypt:
|
|
and ebp, 4294967288
|
|
mov eax, DWORD PTR 20[esp]
|
|
mov ebx, DWORD PTR 24[esp]
|
|
jz $L017decrypt_finish
|
|
L018decrypt_loop:
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
mov DWORD PTR 12[esp],eax
|
|
mov DWORD PTR 16[esp],ebx
|
|
call _des_encrypt
|
|
mov eax, DWORD PTR 12[esp]
|
|
mov ebx, DWORD PTR 16[esp]
|
|
mov ecx, DWORD PTR 20[esp]
|
|
mov edx, DWORD PTR 24[esp]
|
|
xor ecx, eax
|
|
xor edx, ebx
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
mov DWORD PTR [edi],ecx
|
|
mov DWORD PTR 4[edi],edx
|
|
mov DWORD PTR 20[esp],eax
|
|
mov DWORD PTR 24[esp],ebx
|
|
add esi, 8
|
|
add edi, 8
|
|
sub ebp, 8
|
|
jnz L018decrypt_loop
|
|
$L017decrypt_finish:
|
|
mov ebp, DWORD PTR 56[esp]
|
|
and ebp, 7
|
|
jz $L007finish
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
mov DWORD PTR 12[esp],eax
|
|
mov DWORD PTR 16[esp],ebx
|
|
call _des_encrypt
|
|
mov eax, DWORD PTR 12[esp]
|
|
mov ebx, DWORD PTR 16[esp]
|
|
mov ecx, DWORD PTR 20[esp]
|
|
mov edx, DWORD PTR 24[esp]
|
|
xor ecx, eax
|
|
xor edx, ebx
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
L019dj7:
|
|
ror edx, 16
|
|
mov BYTE PTR 6[edi],dl
|
|
shr edx, 16
|
|
L020dj6:
|
|
mov BYTE PTR 5[edi],dh
|
|
L021dj5:
|
|
mov BYTE PTR 4[edi],dl
|
|
L022dj4:
|
|
mov DWORD PTR [edi],ecx
|
|
jmp $L023djend
|
|
L024dj3:
|
|
ror ecx, 16
|
|
mov BYTE PTR 2[edi],cl
|
|
shl ecx, 16
|
|
L025dj2:
|
|
mov BYTE PTR 1[esi],ch
|
|
L026dj1:
|
|
mov BYTE PTR [esi], cl
|
|
$L023djend:
|
|
jmp $L007finish
|
|
$L007finish:
|
|
mov ecx, DWORD PTR 64[esp]
|
|
add esp, 28
|
|
mov DWORD PTR [ecx],eax
|
|
mov DWORD PTR 4[ecx],ebx
|
|
pop edi
|
|
pop esi
|
|
pop ebx
|
|
pop ebp
|
|
ret
|
|
$L008cbc_enc_jmp_table:
|
|
DD 0
|
|
DD L016ej1
|
|
DD L015ej2
|
|
DD L014ej3
|
|
DD L012ej4
|
|
DD L011ej5
|
|
DD L010ej6
|
|
DD L009ej7
|
|
L027cbc_dec_jmp_table:
|
|
DD 0
|
|
DD L026dj1
|
|
DD L025dj2
|
|
DD L024dj3
|
|
DD L022dj4
|
|
DD L021dj5
|
|
DD L020dj6
|
|
DD L019dj7
|
|
_des_ncbc_encrypt ENDP
|
|
_TEXT ENDS
|
|
_TEXT SEGMENT
|
|
PUBLIC _des_ede3_cbc_encrypt
|
|
|
|
_des_ede3_cbc_encrypt PROC NEAR
|
|
;
|
|
push ebp
|
|
push ebx
|
|
push esi
|
|
push edi
|
|
mov ebp, DWORD PTR 28[esp]
|
|
; getting iv ptr from parameter 6
|
|
mov ebx, DWORD PTR 44[esp]
|
|
mov esi, DWORD PTR [ebx]
|
|
mov edi, DWORD PTR 4[ebx]
|
|
push edi
|
|
push esi
|
|
push edi
|
|
push esi
|
|
mov ebx, esp
|
|
mov esi, DWORD PTR 36[esp]
|
|
mov edi, DWORD PTR 40[esp]
|
|
; getting encrypt flag from parameter 7
|
|
mov ecx, DWORD PTR 64[esp]
|
|
; get and push parameter 5
|
|
mov eax, DWORD PTR 56[esp]
|
|
push eax
|
|
; get and push parameter 4
|
|
mov eax, DWORD PTR 56[esp]
|
|
push eax
|
|
; get and push parameter 3
|
|
mov eax, DWORD PTR 56[esp]
|
|
push eax
|
|
push ebx
|
|
cmp ecx, 0
|
|
jz $L028decrypt
|
|
and ebp, 4294967288
|
|
mov eax, DWORD PTR 16[esp]
|
|
mov ebx, DWORD PTR 20[esp]
|
|
jz $L029encrypt_finish
|
|
L030encrypt_loop:
|
|
mov ecx, DWORD PTR [esi]
|
|
mov edx, DWORD PTR 4[esi]
|
|
xor eax, ecx
|
|
xor ebx, edx
|
|
mov DWORD PTR 16[esp],eax
|
|
mov DWORD PTR 20[esp],ebx
|
|
call _des_encrypt3
|
|
mov eax, DWORD PTR 16[esp]
|
|
mov ebx, DWORD PTR 20[esp]
|
|
mov DWORD PTR [edi],eax
|
|
mov DWORD PTR 4[edi],ebx
|
|
add esi, 8
|
|
add edi, 8
|
|
sub ebp, 8
|
|
jnz L030encrypt_loop
|
|
$L029encrypt_finish:
|
|
mov ebp, DWORD PTR 60[esp]
|
|
and ebp, 7
|
|
jz $L031finish
|
|
xor ecx, ecx
|
|
xor edx, edx
|
|
mov ebp, DWORD PTR $L032cbc_enc_jmp_table[ebp*4]
|
|
jmp ebp
|
|
L033ej7:
|
|
mov dh, BYTE PTR 6[esi]
|
|
shl edx, 8
|
|
L034ej6:
|
|
mov dh, BYTE PTR 5[esi]
|
|
L035ej5:
|
|
mov dl, BYTE PTR 4[esi]
|
|
L036ej4:
|
|
mov ecx, DWORD PTR [esi]
|
|
jmp $L037ejend
|
|
L038ej3:
|
|
mov ch, BYTE PTR 2[esi]
|
|
shl ecx, 8
|
|
L039ej2:
|
|
mov ch, BYTE PTR 1[esi]
|
|
L040ej1:
|
|
mov cl, BYTE PTR [esi]
|
|
$L037ejend:
|
|
xor eax, ecx
|
|
xor ebx, edx
|
|
mov DWORD PTR 16[esp],eax
|
|
mov DWORD PTR 20[esp],ebx
|
|
call _des_encrypt3
|
|
mov eax, DWORD PTR 16[esp]
|
|
mov ebx, DWORD PTR 20[esp]
|
|
mov DWORD PTR [edi],eax
|
|
mov DWORD PTR 4[edi],ebx
|
|
jmp $L031finish
|
|
$L028decrypt:
|
|
and ebp, 4294967288
|
|
mov eax, DWORD PTR 24[esp]
|
|
mov ebx, DWORD PTR 28[esp]
|
|
jz $L041decrypt_finish
|
|
L042decrypt_loop:
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
mov DWORD PTR 16[esp],eax
|
|
mov DWORD PTR 20[esp],ebx
|
|
call _des_decrypt3
|
|
mov eax, DWORD PTR 16[esp]
|
|
mov ebx, DWORD PTR 20[esp]
|
|
mov ecx, DWORD PTR 24[esp]
|
|
mov edx, DWORD PTR 28[esp]
|
|
xor ecx, eax
|
|
xor edx, ebx
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
mov DWORD PTR [edi],ecx
|
|
mov DWORD PTR 4[edi],edx
|
|
mov DWORD PTR 24[esp],eax
|
|
mov DWORD PTR 28[esp],ebx
|
|
add esi, 8
|
|
add edi, 8
|
|
sub ebp, 8
|
|
jnz L042decrypt_loop
|
|
$L041decrypt_finish:
|
|
mov ebp, DWORD PTR 60[esp]
|
|
and ebp, 7
|
|
jz $L031finish
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
mov DWORD PTR 16[esp],eax
|
|
mov DWORD PTR 20[esp],ebx
|
|
call _des_decrypt3
|
|
mov eax, DWORD PTR 16[esp]
|
|
mov ebx, DWORD PTR 20[esp]
|
|
mov ecx, DWORD PTR 24[esp]
|
|
mov edx, DWORD PTR 28[esp]
|
|
xor ecx, eax
|
|
xor edx, ebx
|
|
mov eax, DWORD PTR [esi]
|
|
mov ebx, DWORD PTR 4[esi]
|
|
L043dj7:
|
|
ror edx, 16
|
|
mov BYTE PTR 6[edi],dl
|
|
shr edx, 16
|
|
L044dj6:
|
|
mov BYTE PTR 5[edi],dh
|
|
L045dj5:
|
|
mov BYTE PTR 4[edi],dl
|
|
L046dj4:
|
|
mov DWORD PTR [edi],ecx
|
|
jmp $L047djend
|
|
L048dj3:
|
|
ror ecx, 16
|
|
mov BYTE PTR 2[edi],cl
|
|
shl ecx, 16
|
|
L049dj2:
|
|
mov BYTE PTR 1[esi],ch
|
|
L050dj1:
|
|
mov BYTE PTR [esi], cl
|
|
$L047djend:
|
|
jmp $L031finish
|
|
$L031finish:
|
|
mov ecx, DWORD PTR 76[esp]
|
|
add esp, 32
|
|
mov DWORD PTR [ecx],eax
|
|
mov DWORD PTR 4[ecx],ebx
|
|
pop edi
|
|
pop esi
|
|
pop ebx
|
|
pop ebp
|
|
ret
|
|
$L032cbc_enc_jmp_table:
|
|
DD 0
|
|
DD L040ej1
|
|
DD L039ej2
|
|
DD L038ej3
|
|
DD L036ej4
|
|
DD L035ej5
|
|
DD L034ej6
|
|
DD L033ej7
|
|
L051cbc_dec_jmp_table:
|
|
DD 0
|
|
DD L050dj1
|
|
DD L049dj2
|
|
DD L048dj3
|
|
DD L046dj4
|
|
DD L045dj5
|
|
DD L044dj6
|
|
DD L043dj7
|
|
_des_ede3_cbc_encrypt ENDP
|
|
_TEXT ENDS
|
|
END
|