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Completed challenge 240

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This commit is contained in:
Michael Chen 2022-09-23 15:35:13 +02:00
parent e74d98615f
commit 84c640a03c
Signed by: cnml
GPG Key ID: 5845BF3F82D5F629
1 changed files with 21 additions and 0 deletions
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240/fixme1.py Normal file
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import random
def str_xor(secret, key):
#extend key to secret length
new_key = key
i = 0
while len(new_key) < len(secret):
new_key = new_key + key[i]
i = (i + 1) % len(key)
return "".join([chr(ord(secret_c) ^ ord(new_key_c)) for (secret_c,new_key_c) in zip(secret,new_key)])
flag_enc = chr(0x15) + chr(0x07) + chr(0x08) + chr(0x06) + chr(0x27) + chr(0x21) + chr(0x23) + chr(0x15) + chr(0x5a) + chr(0x07) + chr(0x00) + chr(0x46) + chr(0x0b) + chr(0x1a) + chr(0x5a) + chr(0x1d) + chr(0x1d) + chr(0x2a) + chr(0x06) + chr(0x1c) + chr(0x5a) + chr(0x5c) + chr(0x55) + chr(0x40) + chr(0x3a) + chr(0x58) + chr(0x0a) + chr(0x5d) + chr(0x53) + chr(0x43) + chr(0x06) + chr(0x56) + chr(0x0d) + chr(0x14)
flag = str_xor(flag_enc, 'enkidu')
print('That is correct! Here\'s your flag: ' + flag)