facebook / facebook/watchman

Support modern hashes

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Description

- sha1 is a bit too broken for general use (http://alf.nu/SHA1)
- sha-256 is looking a bit shaky (vulnerable to length-extension attacks)

SHA3 and Blake2b are modern alternatives; SHA3 is probably more well-known, however blake2b offers comparable security with better performance, and is supported by both openssl and libsodium.

Contributor guide

Open the contributing guide

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