Ocamlnet 4 Reference Manual : Netsys_crypto_types.DIGESTS

`sig
type digest
val digests : Netsys_crypto_types.DIGESTS.digest list
val find : string -> Netsys_crypto_types.DIGESTS.digest
val name : Netsys_crypto_types.DIGESTS.digest -> string
val size : Netsys_crypto_types.DIGESTS.digest -> int
val block_length : Netsys_crypto_types.DIGESTS.digest -> int
type digest_ctx
val create :
Netsys_crypto_types.DIGESTS.digest ->
Netsys_crypto_types.DIGESTS.digest_ctx
val add :
Netsys_crypto_types.DIGESTS.digest_ctx -> Netsys_types.memory -> unit
val finish : Netsys_crypto_types.DIGESTS.digest_ctx -> string
end`