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..