Author vstinner
Recipients Theodore Tso, dstufft, larry, vstinner
Date 2016-06-08.22:29:40
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Message-id <1465424981.05.0.542613649065.issue27266@psf.upfronthosting.co.za>
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> Second, unless you can guarantee you support blocking / non-blocking behavior on all platforms, this is a bad move.

Well, there are two options:

* Detect when os.urandom() is going to block, and falls back to weaker entropy (Linux: /dev/urandom in non-blocking mode, others: getpid+time?).
* Never use os.urandom() to seed random.Random when the randim module is imported: I suggest to discuss this option in the issue #27272

I would prefer to collect enough technical information before taking a decision (ensure that it's not possible to get a portable function to check if /dev/urandom is going to block.)
History
Date User Action Args
2016-06-08 22:29:41vstinnersetrecipients: + vstinner, larry, dstufft, Theodore Tso
2016-06-08 22:29:41vstinnersetmessageid: <1465424981.05.0.542613649065.issue27266@psf.upfronthosting.co.za>
2016-06-08 22:29:41vstinnerlinkissue27266 messages
2016-06-08 22:29:40vstinnercreate