Falseen
9 years ago
1 changed files with 0 additions and 117 deletions
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#!/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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