[Cryptography] RNGs, Entropy, and Unguessability
Barney Wolff
barney at databus.com
Mon May 31 11:18:37 EDT 2021
On Sun, May 30, 2021 at 01:14:02PM -0700, Kent Borg wrote:
>
> A (1) uncorrelated sampling of a (2) fast clock is, indeed, a good
> source of unguessability.
Surely this depends on how many guesses an attacker is allowed before being detected and blocked. If there's no penalty for guessing wrong, as with an offline attack, I doubt the GHz ticker can contribute more than about 20 bits or so.
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