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- IF @Version LT 800
- ECHO MASM version 8.00 or later is strongly recommended.
- ENDIF
- .686
- .XMM
- IF @Version LT 800
- XMMWORD STRUCT 16
- DQ 2 dup (?)
- XMMWORD ENDS
- ENDIF
- .MODEL FLAT
- OPTION DOTNAME
- IF @Version LT 800
- .text$ SEGMENT PAGE 'CODE'
- ELSE
- .text$ SEGMENT ALIGN(64) 'CODE'
- ENDIF
- ;EXTERN _OPENSSL_ia32cap_P:NEAR
- ALIGN 16
- _RC4 PROC PUBLIC
- $L_RC4_begin::
- push ebp
- push ebx
- push esi
- push edi
- mov edi,DWORD PTR 20[esp]
- mov edx,DWORD PTR 24[esp]
- mov esi,DWORD PTR 28[esp]
- mov ebp,DWORD PTR 32[esp]
- xor eax,eax
- xor ebx,ebx
- cmp edx,0
- je $L000abort
- mov al,BYTE PTR [edi]
- mov bl,BYTE PTR 4[edi]
- add edi,8
- lea ecx,DWORD PTR [edx*1+esi]
- sub ebp,esi
- mov DWORD PTR 24[esp],ecx
- inc al
- cmp DWORD PTR 256[edi],-1
- je $L001RC4_CHAR
- mov ecx,DWORD PTR [eax*4+edi]
- and edx,-4
- jz $L002loop1
- mov DWORD PTR 32[esp],ebp
- test edx,-8
- jz $L003go4loop4
- lea ebp,DWORD PTR _OPENSSL_ia32cap_P
- bt DWORD PTR [ebp],26
- jnc $L003go4loop4
- mov ebp,DWORD PTR 32[esp]
- and edx,-8
- lea edx,DWORD PTR [edx*1+esi-8]
- mov DWORD PTR [edi-4],edx
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- movq mm0,QWORD PTR [esi]
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm2,DWORD PTR [edx*4+edi]
- jmp $L004loop_mmx_enter
- ALIGN 16
- $L005loop_mmx:
- add bl,cl
- psllq mm1,56
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- movq mm0,QWORD PTR [esi]
- movq QWORD PTR [esi*1+ebp-8],mm2
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm2,DWORD PTR [edx*4+edi]
- $L004loop_mmx_enter:
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm0
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- add bl,cl
- psllq mm1,8
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- add bl,cl
- psllq mm1,16
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- add bl,cl
- psllq mm1,24
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- add bl,cl
- psllq mm1,32
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- add bl,cl
- psllq mm1,40
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- add bl,cl
- psllq mm1,48
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- inc eax
- add edx,ecx
- movzx eax,al
- movzx edx,dl
- pxor mm2,mm1
- mov ecx,DWORD PTR [eax*4+edi]
- movd mm1,DWORD PTR [edx*4+edi]
- mov edx,ebx
- xor ebx,ebx
- mov bl,dl
- cmp esi,DWORD PTR [edi-4]
- lea esi,DWORD PTR 8[esi]
- jb $L005loop_mmx
- psllq mm1,56
- pxor mm2,mm1
- movq QWORD PTR [esi*1+ebp-8],mm2
- emms
- cmp esi,DWORD PTR 24[esp]
- je $L006done
- jmp $L002loop1
- ALIGN 16
- $L003go4loop4:
- lea edx,DWORD PTR [edx*1+esi-4]
- mov DWORD PTR 28[esp],edx
- $L007loop4:
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- add edx,ecx
- inc al
- and edx,255
- mov ecx,DWORD PTR [eax*4+edi]
- mov ebp,DWORD PTR [edx*4+edi]
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- add edx,ecx
- inc al
- and edx,255
- ror ebp,8
- mov ecx,DWORD PTR [eax*4+edi]
- or ebp,DWORD PTR [edx*4+edi]
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- add edx,ecx
- inc al
- and edx,255
- ror ebp,8
- mov ecx,DWORD PTR [eax*4+edi]
- or ebp,DWORD PTR [edx*4+edi]
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- add edx,ecx
- inc al
- and edx,255
- ror ebp,8
- mov ecx,DWORD PTR 32[esp]
- or ebp,DWORD PTR [edx*4+edi]
- ror ebp,8
- xor ebp,DWORD PTR [esi]
- cmp esi,DWORD PTR 28[esp]
- mov DWORD PTR [esi*1+ecx],ebp
- lea esi,DWORD PTR 4[esi]
- mov ecx,DWORD PTR [eax*4+edi]
- jb $L007loop4
- cmp esi,DWORD PTR 24[esp]
- je $L006done
- mov ebp,DWORD PTR 32[esp]
- ALIGN 16
- $L002loop1:
- add bl,cl
- mov edx,DWORD PTR [ebx*4+edi]
- mov DWORD PTR [ebx*4+edi],ecx
- mov DWORD PTR [eax*4+edi],edx
- add edx,ecx
- inc al
- and edx,255
- mov edx,DWORD PTR [edx*4+edi]
- xor dl,BYTE PTR [esi]
- lea esi,DWORD PTR 1[esi]
- mov ecx,DWORD PTR [eax*4+edi]
- cmp esi,DWORD PTR 24[esp]
- mov BYTE PTR [esi*1+ebp-1],dl
- jb $L002loop1
- jmp $L006done
- ALIGN 16
- $L001RC4_CHAR:
- movzx ecx,BYTE PTR [eax*1+edi]
- $L008cloop1:
- add bl,cl
- movzx edx,BYTE PTR [ebx*1+edi]
- mov BYTE PTR [ebx*1+edi],cl
- mov BYTE PTR [eax*1+edi],dl
- add dl,cl
- movzx edx,BYTE PTR [edx*1+edi]
- add al,1
- xor dl,BYTE PTR [esi]
- lea esi,DWORD PTR 1[esi]
- movzx ecx,BYTE PTR [eax*1+edi]
- cmp esi,DWORD PTR 24[esp]
- mov BYTE PTR [esi*1+ebp-1],dl
- jb $L008cloop1
- $L006done:
- dec al
- mov DWORD PTR [edi-4],ebx
- mov BYTE PTR [edi-8],al
- $L000abort:
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
- _RC4 ENDP
- ALIGN 16
- _RC4_set_key PROC PUBLIC
- $L_RC4_set_key_begin::
- push ebp
- push ebx
- push esi
- push edi
- mov edi,DWORD PTR 20[esp]
- mov ebp,DWORD PTR 24[esp]
- mov esi,DWORD PTR 28[esp]
- lea edx,DWORD PTR _OPENSSL_ia32cap_P
- lea edi,DWORD PTR 8[edi]
- lea esi,DWORD PTR [ebp*1+esi]
- neg ebp
- xor eax,eax
- mov DWORD PTR [edi-4],ebp
- bt DWORD PTR [edx],20
- jc $L009c1stloop
- ALIGN 16
- $L010w1stloop:
- mov DWORD PTR [eax*4+edi],eax
- add al,1
- jnc $L010w1stloop
- xor ecx,ecx
- xor edx,edx
- ALIGN 16
- $L011w2ndloop:
- mov eax,DWORD PTR [ecx*4+edi]
- add dl,BYTE PTR [ebp*1+esi]
- add dl,al
- add ebp,1
- mov ebx,DWORD PTR [edx*4+edi]
- jnz $L012wnowrap
- mov ebp,DWORD PTR [edi-4]
- $L012wnowrap:
- mov DWORD PTR [edx*4+edi],eax
- mov DWORD PTR [ecx*4+edi],ebx
- add cl,1
- jnc $L011w2ndloop
- jmp $L013exit
- ALIGN 16
- $L009c1stloop:
- mov BYTE PTR [eax*1+edi],al
- add al,1
- jnc $L009c1stloop
- xor ecx,ecx
- xor edx,edx
- xor ebx,ebx
- ALIGN 16
- $L014c2ndloop:
- mov al,BYTE PTR [ecx*1+edi]
- add dl,BYTE PTR [ebp*1+esi]
- add dl,al
- add ebp,1
- mov bl,BYTE PTR [edx*1+edi]
- jnz $L015cnowrap
- mov ebp,DWORD PTR [edi-4]
- $L015cnowrap:
- mov BYTE PTR [edx*1+edi],al
- mov BYTE PTR [ecx*1+edi],bl
- add cl,1
- jnc $L014c2ndloop
- mov DWORD PTR 256[edi],-1
- $L013exit:
- xor eax,eax
- mov DWORD PTR [edi-8],eax
- mov DWORD PTR [edi-4],eax
- pop edi
- pop esi
- pop ebx
- pop ebp
- ret
- _RC4_set_key ENDP
- ALIGN 16
- _RC4_options PROC PUBLIC
- $L_RC4_options_begin::
- call $L016pic_point
- $L016pic_point:
- pop eax
- lea eax,DWORD PTR ($L017opts-$L016pic_point)[eax]
- lea edx,DWORD PTR _OPENSSL_ia32cap_P
- mov edx,DWORD PTR [edx]
- bt edx,20
- jc $L0181xchar
- bt edx,26
- jnc $L019ret
- add eax,25
- ret
- $L0181xchar:
- add eax,12
- $L019ret:
- ret
- ALIGN 64
- $L017opts:
- DB 114,99,52,40,52,120,44,105,110,116,41,0
- DB 114,99,52,40,49,120,44,99,104,97,114,41,0
- DB 114,99,52,40,56,120,44,109,109,120,41,0
- DB 82,67,52,32,102,111,114,32,120,56,54,44,32,67,82,89
- DB 80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114
- DB 111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
- ALIGN 64
- _RC4_options ENDP
- .text$ ENDS
- .bss SEGMENT 'BSS'
- COMM _OPENSSL_ia32cap_P:DWORD:4
- .bss ENDS
- END
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