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RDRAND

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A module to use Intel's hardware RNG with python's random class

For full docs see https://rdrand.rtfd.io.

This module is distributed via the cheese shop (pypi.python.org), so to install it, all that is required is easy_install or pip and a compiler (and python)

USAGE

        #easy_install rdrand
        #python

        >>>from rdrand import RdRandom
        >>>r = RdRandom()

        >>>from rdrand import RdSeedom
        >>>s = RdSeedom()

At this point, r and s will behave just like random

RdRandom is a subclass of random.Random, and behaves like random.Random, but it uses inline assembly to access the hardware RNG using the RdRand instruction. This should be a cryptographically secure drop in replacement for random with a prediction complexity bound of O(2^128), if the Intel random number generator is valid. No mitigation is done to modify the output of the hardware to prevent problems with Intel's implementation. Caveat Emptor.

RdSeedom is a subclass of random.Random, and behaves like random.Random, but it uses inline assembly to access the hardware RNG using the RdSeed instruction. This should be a cryptographically secure drop in replacement for random returning full entropy bits, if the Intel random number generator is valid. No mitigation is done to modify the output of the hardware to prevent problems with Intel's implementation. Caveat Emptor.

Also, both RdRandom and RdSeedom include the function r.getrandbytes(i) where i is a positive int. This returns a string of length i filled with random bytes, which is ideal for generating a key or using directly in a protocol.

Please note, as with any security solution, it is possible to subvert this. Please understand the full context before deploying. I am not liable for misuse or clever hackers.

Special thanks to David Johnston @dj-on-github for the RdSeed code.

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python interface to intel hardware RNG

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