mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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81 lines
2.3 KiB
Python
Executable File
81 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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########################################################################
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#
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# Copyright 2018 Gerhard Klostermeier
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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########################################################################
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#
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# Usage: ./key-file-diff.py <file A> <file B>
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#
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########################################################################
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#
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# Info:
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# - Read two key files and show the keys that are in file B but not in A.
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# - Keys must be 12 hex characters long and at the beginning of a line.
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#
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########################################################################
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import re
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def main(args):
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"""
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Read two key files and show the keys that are in file B but not in A.
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:param args: Path to two key files A and B (positional shell parameters).
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:return: 0 if everything went fine.
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"""
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key_file_a = args[1]
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key_file_b = args[2]
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with open(key_file_a, 'r') as f:
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keys_a = parse_keys(f)
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with open(key_file_b, 'r') as f:
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keys_b = parse_keys(f)
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# Show all keys that are in B but not in A.
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keys_diff = keys_b.difference(keys_a)
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for key in keys_diff:
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print(key)
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return 0
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def parse_keys(file):
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"""
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Parse keys from a file and return them as a set.
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Keys must be 12 hex characters long and at the beginning of a line.
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:param file: Path to a file containing keys.
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:return: A set of keys read from the file.
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"""
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keys = set()
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key_regex = re.compile('^[0-9a-fA-F]{12}')
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for line in file:
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key = key_regex.match(line)
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try:
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key = key.group(0).upper()
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keys.add(key)
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except AttributeError:
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pass
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return keys
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if __name__ == '__main__':
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import sys
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sys.exit(main(sys.argv))
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