sodium_crypto_generichash

Get a hash of the message

Description

string sodium_crypto_generichash(string $message, #[\SensitiveParameter]string $key = "", int $length = SODIUM_CRYPTO_GENERICHASH_BYTES)

Hash a message with BLAKE2b.

Parameters

message

The 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.

length

Output size.

Return Values

The cryptographic hash as raw bytes. If a hex-encoded output is desired, the result can be passed to sodium_bin2hex.