25 lines
1.0 KiB
Python
25 lines
1.0 KiB
Python
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#!/usr/bin/env python3
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import random
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def str_xor(secret, key):
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#extend key to secret length
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new_key = key
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i = 0
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while len(new_key) < len(secret):
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new_key = new_key + key[i]
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i = (i + 1) % len(key)
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return "".join([chr(ord(secret_c) ^ ord(new_key_c)) for (secret_c,new_key_c) in zip(secret,new_key)])
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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(0x0d) + chr(0x5f) + chr(0x05) + chr(0x40) + chr(0x04) + chr(0x0b) + chr(0x0d) + chr(0x0a) + chr(0x19)
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flag = str_xor(flag_enc, 'enkidu')
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# Check that flag is not empty
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if flag == "": # NOTE: changed = to ==
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print('String XOR encountered a problem, quitting.')
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else:
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print('That is correct! Here\'s your flag: ' + flag)
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