Mathematician warns US spies may be weakening next-gen encryption

Re:Mathematician warns US spies may be weakening next-gen en... by vlovich123 on Friday October 13, 2023 @10:20AM (#37870934)

SHA-2 is has more reliable HW acceleration from what I’ve seen.

SHA-1 SW according to smhasher is 350mib/s as is MD5, so never use MD5 as SHA-1 is always stronger (sha2 supposedly is 150mib/s). Hw accelerated SHA-1 and SHA-2 are both ~1.5 Gib/s and on x86 HW acceleration is always available.

Blake3 is the most interesting because it’s competitive with SHA2 even without HW acceleration. I wonder how it would fare with HW acceleration.

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Re:Mathematician warns US spies may be weakening next-gen en... by throw0101c on Friday October 13, 2023 @12:37PM (#37872493)

> Blake3 is the most interesting […]

Not really. SHA-2 was released in 2001:

* https://en.wikipedia.org/wiki/SHA-2

Blake3 was released 2020. I'm sure if the folks that created SHA-2 did a hash in 2020 they could do something better/faster as well.

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Re:Mathematician warns US spies may be weakening next-gen en... by vlovich123 on Friday October 13, 2023 @10:15PM (#37877560)

First, each Blake version was written by a totally different authors AFAICT so while each version is faster, making a faster construction was a totally different team. I don't see why you're putting so much confidence that the original SHA-2 team could come up with a faster hash function.

FWIW, SHA-3 is slower than SHA-2 although of course SHA-3 is a totally different construction from SHA-2 by design.

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