Author larry
Recipients Lukasa, Theodore Tso, christian.heimes, dstufft, larry, lemburg, martin.panter, ncoghlan, vstinner
Date 2016-06-09.09:17:28
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> In my tests, reading from /dev/urandom never blocks even before urandom is initialized.

That's correct, and is the big difference between getrandom(0) and reading from /dev/urandom.  If "the entropy pool has not been initialized" (terminology from the man pages), getrandom(0) will block, but read(/dev/urandom) will return bytes from the urandom CPRNG before it's been initialized.  Which means they are some seriously low-quality not-very-random numbers.
Date User Action Args
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