Sujet : Re: Truly Random Numbers On A Quantum Computer??
De : kludge (at) *nospam* panix.com (Scott Dorsey)
Groupes : comp.miscDate : 30. Mar 2025, 14:11:47
Autres entêtes
Organisation : Former users of Netcom shell (1989-2000)
Message-ID : <vsbfuj$qmo$1@panix2.panix.com>
References : 1 2 3 4
Richard Kettlewell <
invalid@invalid.invalid> wrote:
Richard Kettlewell <invalid@invalid.invalid> writes:
Exactly! All the stuff about lava lamps, helium motion inside hard
disks, etc is just gimmicks. Real random numbers are tiny electronic
^generators
components built into CPUs, HSMs, etc.
>
Strictly I should probably say “entropy sources”, since there’s
generally a DRBG between the electronics and the application, as well.
The problem with those genuine random number generators is that they are
usually comparatively slow. They take milliseconds to spit out a number,
sometimes tens or even hundreds of them. So we use the genuine RNG to
seed a PNG in situations where we don't need complete randomness but need
pretty good randomness and need a lot of it fast. Knuth has a discussion
of this.
--scott
-- "C'est un Nagra. C'est suisse, et tres, tres precis."