58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
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# -*- coding: utf-8 -*-
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#
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# Random/__init__.py : PyCrypto random number generation
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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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__all__ = ['new', 'get_random_bytes']
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from os import urandom
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class _UrandomRNG(object):
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def read(self, n):
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"""Return a random byte string of the desired size."""
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return urandom(n)
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def flush(self):
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"""Method provided for backward compatibility only."""
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pass
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def reinit(self):
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"""Method provided for backward compatibility only."""
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pass
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def close(self):
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"""Method provided for backward compatibility only."""
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pass
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def new(*args, **kwargs):
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"""Return a file-like object that outputs cryptographically random bytes."""
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return _UrandomRNG()
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def atfork():
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pass
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#: Function that returns a random byte string of the desired size.
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get_random_bytes = urandom
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