On Fri, Jun 10, 2016 at 12:55 PM, Larry Hastings <la...@hastings.org> wrote:
> On 06/10/2016 12:29 PM, David Mertz wrote: > > I believe that secrets.token_bytes() and secrets.SystemRandom() should be > changed even for 3.5.1 to use getrandom() on Linux. > > Surely you meant 3.5.2? 3.5.1 shipped last December. > Yeah, that combines a couple thinkos even. I had intended to write "for 3.5.2" ... but that is also an error, since the secrets module doesn't exist until 3.6. So yes, I think 3.5.2 should restore the 2.6-3.4 behavior of os.urandom(), and the NEW APIs in secrets should use the "best available randomness (even if it blocks)" Donald is correct that we have the spelling secrets.token_bytes() available in 3.6a1, so the spellings secrets.getrandom() or secrets.randbytes() are not needed. However, Sebastian's (adapted) suggestion to allow secrets.token_bytes(k, *, nonblock=False) as the signature makes sense to me (i.e. it's a choice of "block or raise exception", not an option to get non-crypto bytes). -- Keeping medicines from the bloodstreams of the sick; food from the bellies of the hungry; books from the hands of the uneducated; technology from the underdeveloped; and putting advocates of freedom in prisons. Intellectual property is to the 21st century what the slave trade was to the 16th.
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