Messages in this thread | | | Date | Wed, 16 Jul 2014 15:59:57 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH v3 2/5] random,x86: Add arch_get_slow_rng_u64 |
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On 07/16/2014 03:40 PM, Andy Lutomirski wrote: > On Wed, Jul 16, 2014 at 3:13 PM, Andy Lutomirski <luto@amacapital.net> wrote: >> My personal preference is to defer this until some user shows up. I >> think that even this would be too complicated for KASLR, which is the >> only extremely early-boot user that I found. >> >> Hmm. Does the prandom stuff want to use this? > > prandom isn't even using rdrand. I'd suggest fixing this separately, > or even just waiting until someone goes and deletes prandom. >
prandom is exactly the opposite; it is designed for when we need possibly low quality random numbers very quickly. RDRAND is actually too slow.
-hpa
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