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117 lines
3.3 KiB
117 lines
3.3 KiB
#!/usr/bin/env python
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# Copyright (c) 2014 clowwindy
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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from __future__ import absolute_import, division, print_function, \
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with_statement
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import sys
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import logging
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__all__ = ['ciphers']
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has_m2 = True
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try:
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__import__('M2Crypto')
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except ImportError:
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has_m2 = False
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def create_cipher(alg, key, iv, op, key_as_bytes=0, d=None, salt=None, i=1,
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padding=1):
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import M2Crypto.EVP
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return M2Crypto.EVP.Cipher(alg.replace('-', '_'), key, iv, op,
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key_as_bytes=0, d='md5', salt=None, i=1,
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padding=1)
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def err(alg, key, iv, op, key_as_bytes=0, d=None, salt=None, i=1, padding=1):
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logging.error(('M2Crypto is required to use %s, please run'
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' `apt-get install python-m2crypto`') % alg)
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sys.exit(1)
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if has_m2:
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ciphers = {
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b'aes-128-cfb': (16, 16, create_cipher),
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b'aes-192-cfb': (24, 16, create_cipher),
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b'aes-256-cfb': (32, 16, create_cipher),
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b'bf-cfb': (16, 8, create_cipher),
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b'camellia-128-cfb': (16, 16, create_cipher),
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b'camellia-192-cfb': (24, 16, create_cipher),
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b'camellia-256-cfb': (32, 16, create_cipher),
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b'cast5-cfb': (16, 8, create_cipher),
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b'des-cfb': (8, 8, create_cipher),
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b'idea-cfb': (16, 8, create_cipher),
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b'rc2-cfb': (16, 8, create_cipher),
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b'rc4': (16, 0, create_cipher),
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b'seed-cfb': (16, 16, create_cipher),
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}
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else:
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ciphers = {}
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def run_method(method):
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from shadowsocks.crypto import util
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cipher = create_cipher(method, b'k' * 32, b'i' * 16, 1)
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decipher = create_cipher(method, b'k' * 32, b'i' * 16, 0)
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util.run_cipher(cipher, decipher)
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def check_env():
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# skip this test on pypy and Python 3
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try:
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import __pypy__
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del __pypy__
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from nose.plugins.skip import SkipTest
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raise SkipTest
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except ImportError:
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pass
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if bytes != str:
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from nose.plugins.skip import SkipTest
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raise SkipTest
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def test_aes_128_cfb():
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check_env()
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run_method(b'aes-128-cfb')
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def test_aes_256_cfb():
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check_env()
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run_method(b'aes-256-cfb')
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def test_bf_cfb():
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check_env()
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run_method(b'bf-cfb')
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def test_rc4():
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check_env()
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run_method(b'rc4')
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if __name__ == '__main__':
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test_aes_128_cfb()
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