++ on SHA-512/256. SHA-512 uses 64-bit operations where SHA-256 uses 32-bit, so ... | Hacker News

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twotwotwo on Aug 5, 2015 | parent | context | favorite | on: SHA-3 Standard [pdf]

++ on SHA-512/256. SHA-512 uses 64-bit operations where SHA-256 uses 32-bit, so on a beefy 64-bit chip, it's faster per byte hashed. So, compared to SHA-256, more rounds, twice the state size, same familiar/widely-implemented design, and faster -- what's not to love?

See http://bench.cr.yp.to/results-hash.html for a comparison of hash-function speeds.

cpeterso on Aug 6, 2015 | [–]

Thanks for the link. I was just about to ask the very ideation you answered. :)

JoachimS on Aug 6, 2015 | [–]

Dang, just saw your reply which was better than mine.

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