--- /dev/null
+ ; Don't even think of reading this code
+ ; It was automatically generated by cast-586.pl
+ ; Which is a perl program used to generate the x86 assember for
+ ; any of elf, a.out, BSDI,Win32, or Solaris
+ ; eric <eay@cryptsoft.com>
+ ;
+ TITLE cast-586.asm
+ .486
+.model FLAT
+_TEXT SEGMENT
+PUBLIC _CAST_encrypt
+EXTERN _CAST_S_table0:DWORD
+EXTERN _CAST_S_table1:DWORD
+EXTERN _CAST_S_table2:DWORD
+EXTERN _CAST_S_table3:DWORD
+
+_CAST_encrypt PROC NEAR
+ ;
+ push ebp
+ push ebx
+ mov ebx, DWORD PTR 12[esp]
+ mov ebp, DWORD PTR 16[esp]
+ push esi
+ push edi
+ ; Load the 2 words
+ mov edi, DWORD PTR [ebx]
+ mov esi, DWORD PTR 4[ebx]
+ ; Get short key flag
+ mov eax, DWORD PTR 128[ebp]
+ push eax
+ xor eax, eax
+ ; round 0
+ mov edx, DWORD PTR [ebp]
+ mov ecx, DWORD PTR 4[ebp]
+ add edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor edi, ecx
+ ; round 1
+ mov edx, DWORD PTR 8[ebp]
+ mov ecx, DWORD PTR 12[ebp]
+ xor edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor esi, ecx
+ ; round 2
+ mov edx, DWORD PTR 16[ebp]
+ mov ecx, DWORD PTR 20[ebp]
+ sub edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor edi, ecx
+ ; round 3
+ mov edx, DWORD PTR 24[ebp]
+ mov ecx, DWORD PTR 28[ebp]
+ add edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor esi, ecx
+ ; round 4
+ mov edx, DWORD PTR 32[ebp]
+ mov ecx, DWORD PTR 36[ebp]
+ xor edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor edi, ecx
+ ; round 5
+ mov edx, DWORD PTR 40[ebp]
+ mov ecx, DWORD PTR 44[ebp]
+ sub edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor esi, ecx
+ ; round 6
+ mov edx, DWORD PTR 48[ebp]
+ mov ecx, DWORD PTR 52[ebp]
+ add edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor edi, ecx
+ ; round 7
+ mov edx, DWORD PTR 56[ebp]
+ mov ecx, DWORD PTR 60[ebp]
+ xor edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor esi, ecx
+ ; round 8
+ mov edx, DWORD PTR 64[ebp]
+ mov ecx, DWORD PTR 68[ebp]
+ sub edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor edi, ecx
+ ; round 9
+ mov edx, DWORD PTR 72[ebp]
+ mov ecx, DWORD PTR 76[ebp]
+ add edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor esi, ecx
+ ; round 10
+ mov edx, DWORD PTR 80[ebp]
+ mov ecx, DWORD PTR 84[ebp]
+ xor edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor edi, ecx
+ ; round 11
+ mov edx, DWORD PTR 88[ebp]
+ mov ecx, DWORD PTR 92[ebp]
+ sub edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor esi, ecx
+ ; test short key flag
+ pop edx
+ or edx, edx
+ jnz $L000cast_enc_done
+ ; round 12
+ mov edx, DWORD PTR 96[ebp]
+ mov ecx, DWORD PTR 100[ebp]
+ add edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor edi, ecx
+ ; round 13
+ mov edx, DWORD PTR 104[ebp]
+ mov ecx, DWORD PTR 108[ebp]
+ xor edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor esi, ecx
+ ; round 14
+ mov edx, DWORD PTR 112[ebp]
+ mov ecx, DWORD PTR 116[ebp]
+ sub edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor edi, ecx
+ ; round 15
+ mov edx, DWORD PTR 120[ebp]
+ mov ecx, DWORD PTR 124[ebp]
+ add edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor esi, ecx
+$L000cast_enc_done:
+ nop
+ mov eax, DWORD PTR 20[esp]
+ mov DWORD PTR 4[eax],edi
+ mov DWORD PTR [eax],esi
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
+_CAST_encrypt ENDP
+_TEXT ENDS
+_TEXT SEGMENT
+PUBLIC _CAST_decrypt
+EXTERN _CAST_S_table0:DWORD
+EXTERN _CAST_S_table1:DWORD
+EXTERN _CAST_S_table2:DWORD
+EXTERN _CAST_S_table3:DWORD
+
+_CAST_decrypt PROC NEAR
+ ;
+ push ebp
+ push ebx
+ mov ebx, DWORD PTR 12[esp]
+ mov ebp, DWORD PTR 16[esp]
+ push esi
+ push edi
+ ; Load the 2 words
+ mov edi, DWORD PTR [ebx]
+ mov esi, DWORD PTR 4[ebx]
+ ; Get short key flag
+ mov eax, DWORD PTR 128[ebp]
+ or eax, eax
+ jnz $L001cast_dec_skip
+ xor eax, eax
+ ; round 15
+ mov edx, DWORD PTR 120[ebp]
+ mov ecx, DWORD PTR 124[ebp]
+ add edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor edi, ecx
+ ; round 14
+ mov edx, DWORD PTR 112[ebp]
+ mov ecx, DWORD PTR 116[ebp]
+ sub edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor esi, ecx
+ ; round 13
+ mov edx, DWORD PTR 104[ebp]
+ mov ecx, DWORD PTR 108[ebp]
+ xor edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor edi, ecx
+ ; round 12
+ mov edx, DWORD PTR 96[ebp]
+ mov ecx, DWORD PTR 100[ebp]
+ add edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor esi, ecx
+$L001cast_dec_skip:
+ ; round 11
+ mov edx, DWORD PTR 88[ebp]
+ mov ecx, DWORD PTR 92[ebp]
+ sub edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor edi, ecx
+ ; round 10
+ mov edx, DWORD PTR 80[ebp]
+ mov ecx, DWORD PTR 84[ebp]
+ xor edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor esi, ecx
+ ; round 9
+ mov edx, DWORD PTR 72[ebp]
+ mov ecx, DWORD PTR 76[ebp]
+ add edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor edi, ecx
+ ; round 8
+ mov edx, DWORD PTR 64[ebp]
+ mov ecx, DWORD PTR 68[ebp]
+ sub edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor esi, ecx
+ ; round 7
+ mov edx, DWORD PTR 56[ebp]
+ mov ecx, DWORD PTR 60[ebp]
+ xor edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor edi, ecx
+ ; round 6
+ mov edx, DWORD PTR 48[ebp]
+ mov ecx, DWORD PTR 52[ebp]
+ add edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor esi, ecx
+ ; round 5
+ mov edx, DWORD PTR 40[ebp]
+ mov ecx, DWORD PTR 44[ebp]
+ sub edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor edi, ecx
+ ; round 4
+ mov edx, DWORD PTR 32[ebp]
+ mov ecx, DWORD PTR 36[ebp]
+ xor edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor esi, ecx
+ ; round 3
+ mov edx, DWORD PTR 24[ebp]
+ mov ecx, DWORD PTR 28[ebp]
+ add edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor edi, ecx
+ ; round 2
+ mov edx, DWORD PTR 16[ebp]
+ mov ecx, DWORD PTR 20[ebp]
+ sub edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ sub ecx, ebx
+ xor esi, ecx
+ ; round 1
+ mov edx, DWORD PTR 8[ebp]
+ mov ecx, DWORD PTR 12[ebp]
+ xor edx, esi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ add ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ xor ecx, ebx
+ xor edi, ecx
+ ; round 0
+ mov edx, DWORD PTR [ebp]
+ mov ecx, DWORD PTR 4[ebp]
+ add edx, edi
+ rol edx, cl
+ mov ebx, edx
+ xor ecx, ecx
+ mov cl, dh
+ and ebx, 255
+ shr edx, 16
+ xor eax, eax
+ mov al, dh
+ and edx, 255
+ mov ecx, DWORD PTR _CAST_S_table0[ecx*4]
+ mov ebx, DWORD PTR _CAST_S_table1[ebx*4]
+ xor ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table2[eax*4]
+ sub ecx, ebx
+ mov ebx, DWORD PTR _CAST_S_table3[edx*4]
+ add ecx, ebx
+ xor esi, ecx
+ nop
+ mov eax, DWORD PTR 20[esp]
+ mov DWORD PTR 4[eax],edi
+ mov DWORD PTR [eax],esi
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
+_CAST_decrypt ENDP
+_TEXT ENDS
+_TEXT SEGMENT
+PUBLIC _CAST_cbc_encrypt
+
+_CAST_cbc_encrypt PROC NEAR
+ ;
+ push ebp
+ push ebx
+ push esi
+ push edi
+ mov ebp, DWORD PTR 28[esp]
+ ; getting iv ptr from parameter 4
+ mov ebx, DWORD PTR 36[esp]
+ mov esi, DWORD PTR [ebx]
+ mov edi, DWORD PTR 4[ebx]
+ push edi
+ push esi
+ push edi
+ push esi
+ mov ebx, esp
+ mov esi, DWORD PTR 36[esp]
+ mov edi, DWORD PTR 40[esp]
+ ; getting encrypt flag from parameter 5
+ mov ecx, DWORD PTR 56[esp]
+ ; get and push parameter 3
+ mov eax, DWORD PTR 48[esp]
+ push eax
+ push ebx
+ cmp ecx, 0
+ jz $L002decrypt
+ and ebp, 4294967288
+ mov eax, DWORD PTR 8[esp]
+ mov ebx, DWORD PTR 12[esp]
+ jz $L003encrypt_finish
+L004encrypt_loop:
+ mov ecx, DWORD PTR [esi]
+ mov edx, DWORD PTR 4[esi]
+ xor eax, ecx
+ xor ebx, edx
+ bswap eax
+ bswap ebx
+ mov DWORD PTR 8[esp],eax
+ mov DWORD PTR 12[esp],ebx
+ call _CAST_encrypt
+ mov eax, DWORD PTR 8[esp]
+ mov ebx, DWORD PTR 12[esp]
+ bswap eax
+ bswap ebx
+ mov DWORD PTR [edi],eax
+ mov DWORD PTR 4[edi],ebx
+ add esi, 8
+ add edi, 8
+ sub ebp, 8
+ jnz L004encrypt_loop
+$L003encrypt_finish:
+ mov ebp, DWORD PTR 52[esp]
+ and ebp, 7
+ jz $L005finish
+ xor ecx, ecx
+ xor edx, edx
+ mov ebp, DWORD PTR $L006cbc_enc_jmp_table[ebp*4]
+ jmp ebp
+L007ej7:
+ xor edx, edx
+ mov dh, BYTE PTR 6[esi]
+ shl edx, 8
+L008ej6:
+ mov dh, BYTE PTR 5[esi]
+L009ej5:
+ mov dl, BYTE PTR 4[esi]
+L010ej4:
+ mov ecx, DWORD PTR [esi]
+ jmp $L011ejend
+L012ej3:
+ mov ch, BYTE PTR 2[esi]
+ xor ecx, ecx
+ shl ecx, 8
+L013ej2:
+ mov ch, BYTE PTR 1[esi]
+L014ej1:
+ mov cl, BYTE PTR [esi]
+$L011ejend:
+ xor eax, ecx
+ xor ebx, edx
+ bswap eax
+ bswap ebx
+ mov DWORD PTR 8[esp],eax
+ mov DWORD PTR 12[esp],ebx
+ call _CAST_encrypt
+ mov eax, DWORD PTR 8[esp]
+ mov ebx, DWORD PTR 12[esp]
+ bswap eax
+ bswap ebx
+ mov DWORD PTR [edi],eax
+ mov DWORD PTR 4[edi],ebx
+ jmp $L005finish
+$L002decrypt:
+ and ebp, 4294967288
+ mov eax, DWORD PTR 16[esp]
+ mov ebx, DWORD PTR 20[esp]
+ jz $L015decrypt_finish
+L016decrypt_loop:
+ mov eax, DWORD PTR [esi]
+ mov ebx, DWORD PTR 4[esi]
+ bswap eax
+ bswap ebx
+ mov DWORD PTR 8[esp],eax
+ mov DWORD PTR 12[esp],ebx
+ call _CAST_decrypt
+ mov eax, DWORD PTR 8[esp]
+ mov ebx, DWORD PTR 12[esp]
+ bswap eax
+ bswap ebx
+ mov ecx, DWORD PTR 16[esp]
+ mov edx, DWORD PTR 20[esp]
+ xor ecx, eax
+ xor edx, ebx
+ mov eax, DWORD PTR [esi]
+ mov ebx, DWORD PTR 4[esi]
+ mov DWORD PTR [edi],ecx
+ mov DWORD PTR 4[edi],edx
+ mov DWORD PTR 16[esp],eax
+ mov DWORD PTR 20[esp],ebx
+ add esi, 8
+ add edi, 8
+ sub ebp, 8
+ jnz L016decrypt_loop
+$L015decrypt_finish:
+ mov ebp, DWORD PTR 52[esp]
+ and ebp, 7
+ jz $L005finish
+ mov eax, DWORD PTR [esi]
+ mov ebx, DWORD PTR 4[esi]
+ bswap eax
+ bswap ebx
+ mov DWORD PTR 8[esp],eax
+ mov DWORD PTR 12[esp],ebx
+ call _CAST_decrypt
+ mov eax, DWORD PTR 8[esp]
+ mov ebx, DWORD PTR 12[esp]
+ bswap eax
+ bswap ebx
+ mov ecx, DWORD PTR 16[esp]
+ mov edx, DWORD PTR 20[esp]
+ xor ecx, eax
+ xor edx, ebx
+ mov eax, DWORD PTR [esi]
+ mov ebx, DWORD PTR 4[esi]
+L017dj7:
+ ror edx, 16
+ mov BYTE PTR 6[edi],dl
+ shr edx, 16
+L018dj6:
+ mov BYTE PTR 5[edi],dh
+L019dj5:
+ mov BYTE PTR 4[edi],dl
+L020dj4:
+ mov DWORD PTR [edi],ecx
+ jmp $L021djend
+L022dj3:
+ ror ecx, 16
+ mov BYTE PTR 2[edi],cl
+ shl ecx, 16
+L023dj2:
+ mov BYTE PTR 1[esi],ch
+L024dj1:
+ mov BYTE PTR [esi], cl
+$L021djend:
+ jmp $L005finish
+$L005finish:
+ mov ecx, DWORD PTR 60[esp]
+ add esp, 24
+ mov DWORD PTR [ecx],eax
+ mov DWORD PTR 4[ecx],ebx
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
+$L006cbc_enc_jmp_table:
+ DD 0
+ DD L014ej1
+ DD L013ej2
+ DD L012ej3
+ DD L010ej4
+ DD L009ej5
+ DD L008ej6
+ DD L007ej7
+L025cbc_dec_jmp_table:
+ DD 0
+ DD L024dj1
+ DD L023dj2
+ DD L022dj3
+ DD L020dj4
+ DD L019dj5
+ DD L018dj6
+ DD L017dj7
+_CAST_cbc_encrypt ENDP
+_TEXT ENDS
+END
projects / oweals / openssl.git / commitdiff