The plaintext isn't guessable, though. The post says they use a 32-byte random s... | Hacker News

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		tuxmascot on March 11, 2019 \| parent \| context \| favorite \| on: Cryptographic coin flipping, now in Keybase The plaintext isn't guessable, though. The post says they use a 32-byte random string.

maxtaco on March 11, 2019 [–]

Agreed we could have used either of those. We needed a PRF keyed by the Game ID (so the revealed secrets of this game can't be replayed in the next). Blake2b and SHA3 would also have worked fine.

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