__init__.py 1.6 KB

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  1. # -*- coding: utf-8 -*-
  2. #
  3. # Random/__init__.py : PyCrypto random number generation
  4. #
  5. # Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
  6. #
  7. # ===================================================================
  8. # The contents of this file are dedicated to the public domain. To
  9. # the extent that dedication to the public domain is not available,
  10. # everyone is granted a worldwide, perpetual, royalty-free,
  11. # non-exclusive license to exercise all rights associated with the
  12. # contents of this file for any purpose whatsoever.
  13. # No rights are reserved.
  14. #
  15. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16. # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17. # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18. # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19. # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20. # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21. # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22. # SOFTWARE.
  23. # ===================================================================
  24. __revision__ = "$Id$"
  25. __all__ = ['new']
  26. from Crypto.Random import OSRNG
  27. from Crypto.Random import _UserFriendlyRNG
  28. def new(*args, **kwargs):
  29. """Return a file-like object that outputs cryptographically random bytes."""
  30. return _UserFriendlyRNG.new(*args, **kwargs)
  31. def atfork():
  32. """Call this whenever you call os.fork()"""
  33. _UserFriendlyRNG.reinit()
  34. def get_random_bytes(n):
  35. """Return the specified number of cryptographically-strong random bytes."""
  36. return _UserFriendlyRNG.get_random_bytes(n)
  37. # vim:set ts=4 sw=4 sts=4 expandtab: