有加密部分,哪位大哥帮写写解密部分!谢~:)

[D_Q]

加密:
asm
@@4: PUSHEBX
MOV EBX, H
PUSH0
MOV EAX, EBX
ADD EAX, $4
PUSHEAX
PUSHMAX_BUF_SIZE
MOV EDX, B
PUSHEDX
MOV EAX, EBX
MOV EAX, [EAX]
PUSHEAX
CALLReadFile

LEA ESI, Key
MOV EDI, B
MOV ECX, 0
MOV EAX, EBX
ADD EAX, 4
MOV EDX, [EAX]
@@2: MOV EAX, [EDI + ECX]
MOV EBX, ECX
AND EBX, $7FF // MOD 2048 = 0
CMP EBX, 0
JNZ @@6
CMP AL, $31
JNZ @@1
@@6: MOV EBX, ECX
AND EBX, $F
MOV EBX, [ESI + EBX]
XOR EAX, EBX
MOV [EDI + ECX], EAX
@@5: ADD ECX, 4
CMP ECX, EDX
JNZ @@2
@@1: POP EBX
end;

[D_Q]

B: PBuffer;
H: THandle;