Author vstinner
Recipients Arfrever, Mark.Shannon, PaulMcMillan, Zhiping.Deng, alex, barry, benjamin.peterson, christian.heimes, dmalcolm, eric.araujo, georg.brandl, gvanrossum, jcea, lemburg, pitrou, terry.reedy, vstinner
Date 2012-01-04.23:54:25
SpamBayes Score 4.57984e-05
Marked as misclassified No
Message-id <>
> add PyOS_URandom() using CryptoGen, SSL (only on VMS!!)
> or /dev/urandom

Oh, OpenSSL (RAND_pseudo_bytes) should be used on Windows, Linux, Mac OS X, etc. if OpenSSL is available. I was just too lazy to add a define or pyconfig.h option to indicate if OpenSSL is available or not. FYI RAND_pseudo_bytes() is now exposed in the ssl module of Python 3.3.

> will a fallback on a dummy LCG

It's the Linear congruent generator (LCG) used by Microsoft Visual C++ and PHP:

x(n+1) = (x(n) * 214013 + 2531011) % 2^32

I only use bits 23..16 (bits 15..0 are not really random).
Date User Action Args
2012-01-04 23:54:26vstinnersetrecipients: + vstinner, lemburg, gvanrossum, barry, georg.brandl, terry.reedy, jcea, pitrou, christian.heimes, benjamin.peterson, eric.araujo, Arfrever, alex, dmalcolm, Mark.Shannon, Zhiping.Deng, PaulMcMillan
2012-01-04 23:54:25vstinnersetmessageid: <>
2012-01-04 23:54:25vstinnerlinkissue13703 messages
2012-01-04 23:54:25vstinnercreate