(PHP 7 >= 7.2.0, PHP 8)
sodium_crypto_generichash — Get a hash of the message
$message, string $key = "", int $length = SODIUM_CRYPTO_GENERICHASH_BYTES): stringHash a message with BLAKE2b.
messageThe message being hashed.
key(Optional) cryptographic key. This serves the same function as a HMAC key, but it's utilized as a reserved section of the internal BLAKE2 state.
lengthOutput size.
The cryptographic hash as raw bytes. If a hex-encoded output is desired, the result can be passed to sodium_bin2hex().