Messages in this thread | | | From | Andy Lutomirski <> | Date | Thu, 17 Jul 2014 10:45:22 -0700 | Subject | Re: [PATCH v3 1/5] x86,kvm: Add MSR_KVM_GET_RNG_SEED and a matching feature bit |
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On Thu, Jul 17, 2014 at 10:43 AM, Andrew Honig <ahonig@google.com> wrote: >> + case MSR_KVM_GET_RNG_SEED: >> + get_random_bytes(&data, sizeof(data)); >> + break; > > Should this be rate limited in the interest of conserving randomness? > If there ever is an attack on the prng, this would create very > favorable conditions for an attacker to exploit it.
IMO if the nonblocking pool has a weakness that requires us to conserve its output, then this is the least of our worries.
--Andy
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