히공

문제 #!/usr/bin/env python3 from os import urandom from random import randint from pwn import xor input_img = open("flag.png", "rb").read() outpout_img = open("flag.png.enc", "wb") key = urandom(8) + bytes([randint(0, 9)]) outpout_img.write(xor(input_img, key)) xor.py의 내용이다. from pwn import xor with open('flag.png.enc', 'rb') as f: read = f.read() png_signature = bytes.fromhex("89 50 4E 47 0D 0A 1..

문제 int __cdecl main(int argc, const char **argv, const char **envp) { int i; // [rsp+4h] [rbp-18Ch] __int64 v5; // [rsp+8h] [rbp-188h] __int64 v6; // [rsp+8h] [rbp-188h] char *gets_value; // [rsp+10h] [rbp-180h] BYREF char *v8; // [rsp+18h] [rbp-178h] _QWORD *v9; // [rsp+20h] [rbp-170h] BYREF __int64 v10; // [rsp+28h] [rbp-168h] int v11; // [rsp+30h] [rbp-160h] __int64 v12[8]; // [rsp+40h] [rbp-..