mirror of
https://github.com/RIOT-OS/RIOT.git
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61 lines
2.4 KiB
Python
61 lines
2.4 KiB
Python
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# -*- coding: utf-8 -*-
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# ----------------------------------------------------------------------------
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# Copyright 2019-2020 ARM Limited or its affiliates
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ----------------------------------------------------------------------------
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from cryptography.hazmat.backends import default_backend
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from cryptography.hazmat.primitives import hashes
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from cryptography.hazmat.primitives.asymmetric import ec
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from cryptography.hazmat.primitives.asymmetric import ed25519
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from cryptography.hazmat.primitives.asymmetric import utils as asymmetric_utils
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from cryptography.hazmat.primitives import serialization as ks
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import logging
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import binascii
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import textwrap
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LOG = logging.getLogger(__name__)
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KeyGenerators = {
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'secp256r1' : lambda o: ec.generate_private_key(ec.SECP256R1(), default_backend()),
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'secp384r1' : lambda o: ec.generate_private_key(ec.SECP384R1(), default_backend()),
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'secp521r1' : lambda o: ec.generate_private_key(ec.SECP521R1(), default_backend()),
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'ed25519' : lambda o: ed25519.Ed25519PrivateKey.generate(),
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}
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OutputFormaters = {
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'pem' : lambda pk: pk.private_bytes(ks.Encoding.PEM, ks.PrivateFormat.PKCS8, ks.NoEncryption()),
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'der' : lambda pk: pk.private_bytes(ks.Encoding.DER, ks.PrivateFormat.PKCS8, ks.NoEncryption()),
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'c-hss-lms' : lambda pk: pk.serialize(),
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}
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def main(options):
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if options.type == 'hsslms':
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options.output_format = 'c-hss-lms'
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# Read the manifest wrapper
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private_key = KeyGenerators.get(options.type) (options)
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odata = OutputFormaters.get(options.output_format)(private_key)
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if options.output_file.isatty():
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try:
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odata = odata.decode('utf-8')
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except:
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odata = binascii.b2a_hex(odata).decode('utf-8')
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odata = '\n'.join(textwrap.wrap(odata, 64)) + '\n'
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options.output_file.write(odata)
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return 0
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