Digestif is a hashing library for OCaml supporting the following
algorithm: BLAKE2B, BLAKE2S, Keccak-256, MD5, RIPEMD160, SHA1, SHA224,
SHA256, SHA3, SHA384, SHA512 and WHIRLPOOL.

This library permits to link against one of the two provided
implementations: the pure OCaml implementation ("digestif.ocaml"), or
one written in the C language ("digestif.c").