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1e52ac21e4
This tool generates a random hexadecimal value of a given maximum size. This is useful for generating random canary values during compile-time for the ssp module which currently uses a constant value.
21 lines
422 B
Python
Executable File
21 lines
422 B
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (C) 2020 Sören Tempel <tempel@uni-bremen.de>
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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#
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import sys
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import secrets
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if len(sys.argv) >= 2:
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maxbits = int(sys.argv[1])
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else:
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maxbits = 64
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maxval = 2 ** maxbits
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print(hex(secrets.randbelow(maxval)))
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