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Inverting the Xorshift128 random number generator

(littlemaninmyhead.wordpress.com)
108 points rurban | 1 comments | 31 Aug 25 18:49 UTC | HN request time: 0.205s | source
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Aardwolf ◴[04 Sep 25 14:09 UTC] No.45127470[source]▶
Xorshift128+ is not a cryptographic rng though, so at least this isn't a cryptographic attack...

Should programming languages use cryptographic rngs like a ChaCha20 based one in their standard libraries to stop accidental use of non cryptographic rngs for cryptographic purposes? But that comes at the cost of speed

replies(6): >>45127744 #>>45127837 #>>45127961 #>>45127992 #>>45131766 #>>45131852 #
1. tptacek ◴[04 Sep 25 14:54 UTC] No.45127992[source]▶
It is a cryptographic attack, just against an algorithm that isn't cryptographically strong. There's a lot of value in those.