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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2020, Google Inc.
#
# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
#
# ipa-gen-key.py - Generate the IPA module signing public key
import string
import subprocess
import sys
def main(argv):
if len(argv) != 4:
print('Usage: %s priv-key template output' % argv[0])
return 1
priv_key = argv[1]
template = argv[2]
output = argv[3]
try:
ret = subprocess.run(['openssl', 'rsa', '-pubout', '-in', priv_key,
'-outform', 'DER'],
stdout=subprocess.PIPE)
except FileNotFoundError:
print('Please install openssl to sign IPA modules')
return 1
ipa_key = ['0x%02x' % c for c in ret.stdout]
ipa_key = [', '.join(ipa_key[bound:bound + 8]) for bound in range(0, len(ipa_key), 8)]
ipa_key = ',\n\t'.join(ipa_key)
data = {'ipa_key': ipa_key}
template = open(template, 'rb').read()
template = template.decode('utf-8')
template = string.Template(template)
f = open(output, 'wb')
f.write(template.substitute(data).encode('utf-8'))
f.close()
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))
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