| """ |
"""Obtain bytes of random data with varying degrees of quality, |
| Obtain bytes of random data with varying degrees of quality, using |
using OS facilities for high-quality entropy if available.""" |
| OS facilities for high-quality entropy if available. |
|
| """ |
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| __all__ = ['randbytes', 'rand16'] |
__all__ = ['randbytes', 'rand16'] |
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| import sys, os, time |
import sys, os, time |
| from whrandom import random, seed |
random = __import__('random',{}).random # from _.random import random |
| seeded = 0 |
seeded = 0 |
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| try: |
try: |
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| lasthash = seedhash = '' |
lasthash = seedhash = '' |
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| def prng_some(): |
def prng_some(): |
| prng_some() |
prng_some() |
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| def prng(nbytes): |
def prng(nbytes): |
| """ |
""" |
| A PRNG that hopefully is better than just using whrandom. |
A PRNG that hopefully is better than just using random. |
| Don't trust this for crypto, though! |
Don't trust this for crypto, though! |
| """ |
""" |
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| return None |
return None |
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| funcs = { |
funcs = { |
| #(prng, wait) : function |
#(prng, wait) : function |
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| # through python, it should be added here. XXX |
# through python, it should be added here. XXX |
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| def randbytes(nbytes, prng=1, wait=0): |
def randbytes(nbytes, prng=1, wait=0): |
| """ |
""" |
| Get nbytes number of bytes of randomness if possible. |
Get nbytes number of bytes of randomness if possible. |
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| s = randbytes(2, prng, wait) |
s = randbytes(2, prng, wait) |
| return (ord(s[0]) << 8) | ord(s[1]) |
return (ord(s[0]) << 8) | ord(s[1]) |
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Diff of /PEAK/src/peak/util/random.py
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