[seccon beginners ctf 2020] mask

1. 개요

or 문제

 

2. 분석

flag_a = "atd4`qdedtUpetepqeUdaaeUeaqau"
flag_b = "c`b bk`kj`KbababcaKbacaKiacki"

flag = ""

for a, b in zip(flag_a, flag_b):
    flag += chr(ord(a) | ord(b))

print("flag", flag)
# ctf4b{dont_reverse_face_mask}