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val empty : t
empty
is the hash of the empty string.
feed t msg
adds the information in msg
to t
.
feed
is analogous to appending: feed (feed t msg1) msg2 = feed t (Cstruct.append msg1 msg2)
.
val get : t -> Mirage_crypto.Hash.digest
get t
is the digest corresponding to t
.
val hmac_get : hmac -> Mirage_crypto.Hash.digest
hmac_get hmac
is the hmac corresponding to hmac
.
Functions that operate on data stored in a single chunk.
val digest : Cstruct.t -> Mirage_crypto.Hash.digest
digest msg
is the digest of msg
.
digest msg = get (feed empty msg)
val hmac : key:Cstruct.t -> Cstruct.t -> Mirage_crypto.Hash.digest
hmac ~key bytes
is the authentication code for bytes
under the secret key
, generated using the standard HMAC construction over this hash algorithm.
Functions that operate on arbitrary iterators. They can serve as a basis for other, more specialized aggregate hashing operations.
These functions are a little faster than using feed
directly.
val feedi : t -> Cstruct.t Mirage_crypto.Hash.iter -> t
feedi t iter =
(let r = ref t in iter (fun msg -> r := feed !r msg); !r)
val digesti : Cstruct.t Mirage_crypto.Hash.iter -> Mirage_crypto.Hash.digest
digesti iter = feedi empty iter |> get
val hmaci :
key:Cstruct.t ->
Cstruct.t Mirage_crypto.Hash.iter ->
Mirage_crypto.Hash.digest
See hmac
.