xor_strings:
    push ebp
    mov ebp, esp

    mov eax, [ebp + 8] ;mesajul
    mov ebx, [ebp + 12] ;cheia
    mov edx, [ebp + 16] ;lungimea
    decode_xor_strings:
        xor ecx, ecx
        mov cl, [ebx + edx - 1]
        xor [eax + edx - 1], ecx
        dec edx
        cmp edx, 0
        jg decode_xor_strings

    leave
    ret