[cryptography] [liberationtech] Random number generator failure in Rasperri Pis?

Greg Rose ggr at seer-grog.net
Sat Jul 20 12:18:06 EDT 2013


On Jul 20, 2013, at 5:59 , "Dean, James" <Jdean at lsuhsc.edu> wrote:

> Ø  If my 64-bit hardware TRNG can only generate 1% of 64-bit numbers (probably because I hacked it), how are you going to discover that anytime soon?
>  
> Test for more collisions than predicted by the birthday paradox.

Or less collisions. One really simple way to compromise a random number generator would be to just run a block cipher in counter mode with a key that only the hardware (and the bad guy) knows.

Greg.



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