; Don't even think of reading this code ; It was automatically generated by des-som2.pl ; Which is a perl program used to generate the x86 assember for ; any of elf, a.out, Win32, or Solaris ; It can be found in SSLeay 0.6.5+ or in libdes 3.26+ ; eric ; The inner loop instruction sequence and the IP/FP modifications ; are from Svend Olaf Mikkelsen ; TITLE dx86xxxx.asm .386 .model FLAT _TEXT SEGMENT PUBLIC _des_encrypt EXTRN _des_SPtrans:DWORD _des_encrypt PROC NEAR push ebp push ebx push esi push edi ; ; Load the 2 words mov esi, DWORD PTR 20[esp] xor ecx, ecx mov eax, DWORD PTR [esi] mov ebx, DWORD PTR 28[esp] mov edi, DWORD PTR 4[esi] ; ; IP rol eax, 4 mov esi, eax xor eax, edi and eax, 0f0f0f0f0h xor esi, eax xor edi, eax ; rol edi, 20 mov eax, edi xor edi, esi and edi, 0fff0000fh xor eax, edi xor esi, edi ; rol eax, 14 mov edi, eax xor eax, esi and eax, 033333333h xor edi, eax xor esi, eax ; rol esi, 22 mov eax, esi xor esi, edi and esi, 003fc03fch xor eax, esi xor edi, esi ; rol eax, 9 mov esi, eax xor eax, edi and eax, 0aaaaaaaah xor esi, eax xor edi, eax ; rol edi, 1 cmp ebx, 0 mov ebp, DWORD PTR 24[esp] je $L000start_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 $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 edi pop esi pop ebx pop ebp ret _des_encrypt ENDP _TEXT ENDS _TEXT SEGMENT PUBLIC _des_encrypt2 EXTRN _des_SPtrans:DWORD _des_encrypt2 PROC NEAR push ebp push ebx push esi push edi ; ; Load the 2 words mov eax, DWORD PTR 20[esp] xor ecx, ecx mov esi, DWORD PTR [eax] mov ebx, DWORD PTR 28[esp] rol esi, 3 mov edi, DWORD PTR 4[eax] rol edi, 3 cmp ebx, 0 mov ebp, DWORD PTR 24[esp] 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 edi pop esi pop ebx pop ebp ret _des_encrypt2 ENDP _TEXT ENDS _TEXT SEGMENT PUBLIC _des_encrypt3 EXTRN _des_SPtrans:DWORD _des_encrypt3 PROC NEAR push ebp push ebx push esi push edi ; ; Load the data words mov ebx, DWORD PTR 20[esp] mov edi, DWORD PTR [ebx] mov esi, DWORD PTR 4[ebx] ; ; 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 24[esp] mov DWORD PTR [ebx],edx mov edi, DWORD PTR 28[esp] mov esi, DWORD PTR 32[esp] push 1 push eax push ebx call _des_encrypt2 push 0 push edi push ebx call _des_encrypt2 push 1 push esi push ebx call _des_encrypt2 mov edi, DWORD PTR [ebx] add esp, 36 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 ebx pop ebp ret _des_encrypt3 ENDP _TEXT ENDS _TEXT SEGMENT PUBLIC _des_decrypt3 EXTRN _des_SPtrans:DWORD _des_decrypt3 PROC NEAR push ebp push ebx push esi push edi ; ; Load the data words mov ebx, DWORD PTR 20[esp] mov edi, DWORD PTR [ebx] mov esi, DWORD PTR 4[ebx] ; ; 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 24[esp] mov DWORD PTR [ebx],edx mov edi, DWORD PTR 28[esp] mov eax, DWORD PTR 32[esp] push 0 push eax push ebx call _des_encrypt2 push 1 push edi push ebx call _des_encrypt2 push 0 push esi push ebx call _des_encrypt2 mov edi, DWORD PTR [ebx] add esp, 36 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 ebx pop ebp ret _des_decrypt3 ENDP _TEXT ENDS END