Secretbox.NonceNonces.
Use Nonce.generate to generate one.
val generate : unit -> tgenerate () generates a random nonce using Entropy.gather. The function blocks until enough entropy is gathered.
of_bytes b is a nonce from bytes b. Raises Invalid_argument if n's length differs from length.
val pp : Stdlib.Format.formatter -> t -> unitpp ppf n is an unspecified formatter for nonces.