On Saturday, March 14, 2015 at 9:58:55 PM UTC-4, Mouse wrote:
>
> Does ARM (or whatever CPU the current iOS devices use) have an analog of 
> RDRAND?  If it does - it would be silly not to use it. If it doesn’t - I’m 
> not aware of a comparably good randomness source short of a purpose-built 
> hardware.
>

I don't believe so. Looking at an older ARM ARM 
(https://www.scss.tcd.ie/~waldroj/3d1/arm_arm.pdf), there is a pseudo 
random number generator, but its used by the cache manager when cache line 
replacement policy is "random". It does not appear to be available to the 
outside world.

Jeff

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