You would be right, except that there are no faster hash functions (on all moder... | Hacker News

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		adrian_b on Dec 15, 2022 \| parent \| context \| favorite \| on: NIST is announcing that SHA-1 should be phased out... You would be right, except that there are no faster hash functions (on all modern Intel, AMD and ARM CPUs, which have hardware SHA-1). BLAKE 3 is faster only in wall clock time, on an otherwise idle computer, because it fully uses all CPU cores, but it does not do less work. BLAKE 3 is preferable only when the computer does nothing else but hashing.

lazide on Dec 16, 2022 [–]

Uh no.

On a modern intel CPU, one core of SHA1 does about 500MB/s worth of hashing. Blake3 on the same core is 1.5GB/s or faster.

oconnor663 on Dec 16, 2022 | [–]

On the ThinkPad I'm typing this on, the single-threaded BLAKE3 benchmarks hit 8.8 GB/s :)

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