46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
#
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# Random/OSRNG/fallback.py : Fallback entropy source for systems with os.urandom
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#
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# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
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#
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# ===================================================================
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# The contents of this file are dedicated to the public domain. To
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# the extent that dedication to the public domain is not available,
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# everyone is granted a worldwide, perpetual, royalty-free,
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# non-exclusive license to exercise all rights associated with the
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# contents of this file for any purpose whatsoever.
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# No rights are reserved.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# ===================================================================
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__revision__ = "$Id$"
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__all__ = ['PythonOSURandomRNG']
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import os
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from .rng_base import BaseRNG
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class PythonOSURandomRNG(BaseRNG):
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name = "<os.urandom>"
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def __init__(self):
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self._read = os.urandom
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BaseRNG.__init__(self)
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def _close(self):
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self._read = None
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def new(*args, **kwargs):
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return PythonOSURandomRNG(*args, **kwargs)
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# vim:set ts=4 sw=4 sts=4 expandtab:
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