BRIEFCAES

# This script requires python 3.5 but could be easily changed for older python versions
# If you are on windows then download openssl from here: https://wiki.openssl.org/index.php/Binaries

import subprocess
import sys
import os

def Rot13(a):
    o = ord(a)
    return chr(o+13 if o < 78 else o-13)

successes = 0
path = " ".join(sys.argv[1:])


pathrot13 = "".join([Rot13(a) for a in path])
checks = [path, pathrot13, path[::-1], pathrot13[::-1], path.lower(), pathrot13.lower(), path[::-1].lower(), pathrot13[::-1].lower()]
aeses = ["aes-256-cbc","aes-128-cbc","aes-192-cbc","aes-256-ecb","aes-128-ecb","aes-192-ecb"]
for check in checks:
    for aes in aeses:
        if subprocess.run(["openssl", aes, "-d", "-in", "BRIEFCAES", "-out", "BRIEFCAES-out", "-k", check], stderr=subprocess.PIPE).returncode == 0:
            print(check)
            print("WIN!")
            os.rename("BRIEFCAES-out", "solutions/BRIEFCAES-"+str(successes))
            successes = successes + 1