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1d543edbc130d43d267b65bdcae916925e908028
heimdal/lib/des/asm/win32.asm
Björn Groenvall da0f8353ac From libdes 4.01 
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1924 ec53bebd-3082-4978-b11e-865c3cabbd6b
1997-06-22 10:23:25 +00:00

2767 lines
57 KiB
NASM
Raw Blame History

; 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 <eay@mincom.oz.au>
; The inner loop instruction sequence and the IP/FP modifications
; are from Svend Olaf Mikkelsen <svolaf@inet.uni-c.dk>
;
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
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