[openssl-dev] Work on a new RNG for OpenSSL

[Kurt Roeckx]

On Mon, Jun 26, 2017 at 01:18:58PM -0700, John Denker via openssl-dev wrote:
> On 06/26/2017 12:41 PM, Salz, Rich wrote:
> 
> > Suppose the chip supports RDRAND but the runtime doesn't have
> > getrandom or /dev/random?
> 
> That's an easy one!
> 
> Check the feature-test bit and then call RDRAND yourself.
> Code to do this exists, e.g.
>   https://en.wikipedia.org/wiki/RdRand#Sample_x86_asm_code_to_check_upon_RDRAND_instruction
> 
> A version of that for 64-bit architecture exists somewhere, too.

We already have code to detect it.


Kurt