this post was submitted on 11 Nov 2024
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Edit: I found it for $36 elsewhere. :D

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[โ€“] [email protected] 17 points 7 months ago* (last edited 7 months ago) (4 children)

Yeah, not USB but in principle it's the same whether it's PCI or whatever. There's no way to prove an RNG is truly random really just have to rely on validating subsets of its output look random. NIST has published recommendations for sampling RNGs.

Here's the title:

A Statistical Test Suite for Random and Pseudorandom Number Generators for Cryptographic Applications

I don't think there's a real need unless it's regulated to need some dedicated HW RNG.

[โ€“] [email protected] 5 points 7 months ago (3 children)

Very precise answer, thank you.

How about a simple test to make sure it didn't break and start spitting out all zeroes. Read a few lines from /dev/random ?

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