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Completed challenge 241

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This commit is contained in:
Michael Chen 2022-09-23 15:36:31 +02:00
parent 84c640a03c
commit f0613543b2
Signed by: cnml
GPG Key ID: 5845BF3F82D5F629
1 changed files with 27 additions and 0 deletions
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241/fixme2.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(0x58) + chr(0x18) + chr(0x11) + chr(0x41) + chr(0x09) + chr(0x5f) + chr(0x1f) + chr(0x10) + chr(0x3b) + chr(0x1b) + chr(0x55) + chr(0x1a) + chr(0x34) + chr(0x5d) + chr(0x51) + chr(0x40) + chr(0x54) + chr(0x09) + chr(0x05) + chr(0x04) + chr(0x57) + chr(0x1b) + chr(0x11) + chr(0x31) + chr(0x5f) + chr(0x51) + chr(0x52) + chr(0x46) + chr(0x00) + chr(0x5f) + chr(0x5a) + chr(0x0b) + chr(0x19)
flag = str_xor(flag_enc, 'enkidu')
# Check that flag is not empty
if flag == "":
print('String XOR encountered a problem, quitting.')
else:
print('That is correct! Here\'s your flag: ' + flag)