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From: bartekltg <bartek@gmail.com>
Newsgroups: comp.programming
Subject: Re: Researches in quantum computing seem to progress only extremely slowly
Date: Wed, 02 Sep 2015 23:22:25 +0200
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On 02.09.2015 10:48, Mok-Kong Shen wrote:
>
> In my code PROVABLEPRIME
> (http://s13.zetaboards.com/Crypto/topic/7234475/1/) there is no seed
> to be input by the user at all. When the Python session starts, the
> system employs the current time to seed its built-in PRNG. So each
> time one uses the code to e.g. generate RSA keys, one gets a different
> pair by chance.

This is not safe.
For cryptography use
random.SystemRandom
or
os.urandom(n)
in python;
std::random_device from <random>
in c++
...

bartekltg