[tuxxy]

Keccak256? Isn't that just SHA3 with a digest of 256 bits?

[ryan-c]

No, it's slightly different from SHA3-256. There was a tweak for standardization.

[ecesena]

I'm unsure. I think this came before sha3 was defined so some parameters may have changed. But the core is essentially that.

[tylersmith]

There are minor padding differences but that's it.