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Name	Size	Permission	Date
__init__.py	1.44 KB	-rw-r--r--	2016-03-26 13:34
__init__.pyc	1.08 KB	-rw-r--r--	2016-03-26 19:02
__init__.pyo	1.08 KB	-rw-r--r--	2016-03-26 19:02
_compat.py	3.8 KB	-rw-r--r--	2016-03-26 13:30
_compat.pyc	3.55 KB	-rw-r--r--	2016-03-26 19:02
_compat.pyo	3.55 KB	-rw-r--r--	2016-03-26 19:02
_version133.py	11.49 KB	-rw-r--r--	2016-03-26 13:31
_version133.pyc	13.23 KB	-rw-r--r--	2016-03-26 19:02
_version133.pyo	13.23 KB	-rw-r--r--	2016-03-26 19:02
_version200.py	14.77 KB	-rw-r--r--	2016-03-26 13:31
_version200.pyc	14.76 KB	-rw-r--r--	2016-03-26 19:02
_version200.pyo	14.76 KB	-rw-r--r--	2016-03-26 19:02
asn1.py	1.74 KB	-rw-r--r--	2016-03-26 13:30
asn1.pyc	1.61 KB	-rw-r--r--	2016-03-26 19:02
asn1.pyo	1.61 KB	-rw-r--r--	2016-03-26 19:02
bigfile.py	5.06 KB	-rw-r--r--	2016-03-26 13:31
bigfile.pyc	4.67 KB	-rw-r--r--	2016-03-26 19:02
bigfile.pyo	4.67 KB	-rw-r--r--	2016-03-26 19:02
cli.py	11.9 KB	-rw-r--r--	2016-03-26 13:31
cli.pyc	12.76 KB	-rw-r--r--	2016-03-26 19:02
cli.pyo	12.76 KB	-rw-r--r--	2016-03-26 19:02
common.py	4.53 KB	-rw-r--r--	2016-03-26 13:30
common.pyc	4.11 KB	-rw-r--r--	2016-03-26 19:02
common.pyo	4.11 KB	-rw-r--r--	2016-03-26 19:02
core.py	1.62 KB	-rw-r--r--	2016-03-26 13:30
core.pyc	1.44 KB	-rw-r--r--	2016-03-26 19:02
core.pyo	1.44 KB	-rw-r--r--	2016-03-26 19:02
key.py	22.33 KB	-rw-r--r--	2016-03-26 13:31
key.pyc	23.36 KB	-rw-r--r--	2016-03-26 19:02
key.pyo	23.36 KB	-rw-r--r--	2016-03-26 19:02
parallel.py	2.25 KB	-rw-r--r--	2016-03-26 13:30
parallel.pyc	2.01 KB	-rw-r--r--	2016-03-26 19:02
parallel.pyo	2.01 KB	-rw-r--r--	2016-03-26 19:02
pem.py	3.45 KB	-rw-r--r--	2016-03-26 13:31
pem.pyc	2.75 KB	-rw-r--r--	2016-03-26 19:02
pem.pyo	2.75 KB	-rw-r--r--	2016-03-26 19:02
pkcs1.py	11.94 KB	-rw-r--r--	2016-03-26 13:31
pkcs1.pyc	10.87 KB	-rw-r--r--	2016-03-26 19:02
pkcs1.pyo	10.83 KB	-rw-r--r--	2016-03-26 19:02
prime.py	4.45 KB	-rw-r--r--	2016-03-26 13:31
prime.pyc	3.54 KB	-rw-r--r--	2016-03-26 19:02
prime.pyo	3.49 KB	-rw-r--r--	2016-03-26 19:02
randnum.py	2.58 KB	-rw-r--r--	2016-03-26 13:30
randnum.pyc	2.01 KB	-rw-r--r--	2016-03-26 19:02
randnum.pyo	2.01 KB	-rw-r--r--	2016-03-26 19:02
transform.py	6.73 KB	-rw-r--r--	2016-03-26 13:30
transform.pyc	5.67 KB	-rw-r--r--	2016-03-26 19:02
transform.pyo	5.67 KB	-rw-r--r--	2016-03-26 19:02
util.py	2.99 KB	-rw-r--r--	2016-03-26 13:30
util.pyc	2.38 KB	-rw-r--r--	2016-03-26 19:02
util.pyo	2.3 KB	-rw-r--r--	2016-03-26 19:02
varblock.py	5.28 KB	-rw-r--r--	2016-03-26 13:31
varblock.pyc	4.7 KB	-rw-r--r--	2016-03-26 19:02
varblock.pyo	4.7 KB	-rw-r--r--	2016-03-26 19:02

Rename

# -*- coding: utf-8 -*-
#
#  Copyright 2011 Sybren A. Stüvel <sybren@stuvel.eu>
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      https://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

"""Functions for parallel computation on multiple cores.

Introduced in Python-RSA 3.1.

.. note::

Requires Python 2.6 or newer.

"""

from __future__ import print_function

import multiprocessing as mp

import rsa.prime
import rsa.randnum

def _find_prime(nbits, pipe):
    while True:
        integer = rsa.randnum.read_random_odd_int(nbits)

# Test for primeness
        if rsa.prime.is_prime(integer):
            pipe.send(integer)
            return

def getprime(nbits, poolsize):
    """Returns a prime number that can be stored in 'nbits' bits.

Works in multiple threads at the same time.

>>> p = getprime(128, 3)
    >>> rsa.prime.is_prime(p-1)
    False
    >>> rsa.prime.is_prime(p)
    True
    >>> rsa.prime.is_prime(p+1)
    False

>>> from rsa import common
    >>> common.bit_size(p) == 128
    True

"""

(pipe_recv, pipe_send) = mp.Pipe(duplex=False)

# Create processes
    try:
        procs = [mp.Process(target=_find_prime, args=(nbits, pipe_send))
                 for _ in range(poolsize)]
        # Start processes
        for p in procs:
            p.start()

result = pipe_recv.recv()
    finally:
        pipe_recv.close()
        pipe_send.close()

# Terminate processes
    for p in procs:
        p.terminate()

return result

__all__ = ['getprime']

if __name__ == '__main__':
    print('Running doctests 1000x or until failure')
    import doctest

for count in range(100):
        (failures, tests) = doctest.testmod()
        if failures:
            break

if count and count % 10 == 0:
            print('%i times' % count)

print('Doctests done')