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Last change
on this file since 281 was 2, checked in by Yuri Dario, 15 years ago |
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Initial import for vendor code.
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-
Property svn:eol-style
set to
native
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File size:
1.1 KB
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| 1 | class Security:
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| 2 |
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| 3 | def __init__(self):
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| 4 | import os
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| 5 | env = os.environ
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| 6 | if env.has_key('PYTHON_KEYFILE'):
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| 7 | keyfile = env['PYTHON_KEYFILE']
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| 8 | else:
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| 9 | keyfile = '.python_keyfile'
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| 10 | if env.has_key('HOME'):
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| 11 | keyfile = os.path.join(env['HOME'], keyfile)
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| 12 | if not os.path.exists(keyfile):
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| 13 | import sys
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| 14 | for dir in sys.path:
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| 15 | kf = os.path.join(dir, keyfile)
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| 16 | if os.path.exists(kf):
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| 17 | keyfile = kf
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| 18 | break
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| 19 | try:
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| 20 | self._key = eval(open(keyfile).readline())
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| 21 | except IOError:
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| 22 | raise IOError, "python keyfile %s: cannot open" % keyfile
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| 23 |
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| 24 | def _generate_challenge(self):
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| 25 | import random
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| 26 | return random.randint(100, 100000)
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| 27 |
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| 28 | def _compare_challenge_response(self, challenge, response):
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| 29 | return self._encode_challenge(challenge) == response
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| 30 |
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| 31 | def _encode_challenge(self, challenge):
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| 32 | p, m = self._key
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| 33 | return pow(long(challenge), p, m)
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