Size of hash results, in bytes.

An empty hash context.

Create a new hash state.

feed_bytes msg t adds informations in msg to t. feed is analogous to appending: feed (feed t msg1) msg2 = feed t (append msg1 msg2)

Same as feed_bytes but for String.t.

Same as feed_bytes but for bigstring.

feedi_bytes t iter = let r = ref t in iter (fun msg -> r := feed !r msg); !r

Same as feed_bytes but for String.t.

Same as feed_bytes but for bigstring.

get t is the digest corresponding to t.

digest_bytes msg is the digest of msg.

digest_bytes msg = get (feed_bytes empty msg).

Same as digest_bytes but for a String.t.

Same as digest_bytes but for a bigstring.

digesti_bytes iter = feedi_bytes empty iter |> get.

Same as digesti_bytes but for String.t.

Same as digesti_bigstring but for bigstring.

Specialization of digesti_bytes with a list of Bytes.t (see iter).

Same as digestv_bytes but for String.t.

Same as digestv_bytes but for bigstring.

unsafe_compare function returns 0 on equality and a negative/positive int depending on the difference (like String.compare). This is usually OK, but this is not constant time, so in some cases it could leak some information.

The equal (constant-time) function for t.

Pretty-printer of t.

of_hex tries to parse an hexadecimal representation of t. of_hex raises an invalid_argument when input is malformed. We take only firsts digest_size hexadecimal values and ignore rest of input. If it has not enough hexadecimal values, trailing values of the output hash are zero (\x00),

of_hex tries to parse an hexadecimal representation of t. of_hex returns None when input is malformed. We take only first digest_size hexadecimal values and ignore rest of input. If it has not enough hexadecimal values, trailing values of the output hash are zero (\x00).

consistent_of_hex tries to parse an hexadecimal representation of t. consistent_of_hex raises an invalid_argument when input is malformed. However, instead of_hex, consistent_of_hex expects exactly {!digest_size} * 2 hexadecimal values (but continues to ignore whitespaces).

consistent_of_hex_opt tries to parse an hexadecimal representation of t. consistent_of_hex returns None when input is malformed. However, instead of_hex, consistent_of_hex expects exactly {!digest_size} * 2 hexadecimal values (but continues to ignore whitespaces).

to_hex makes a hex-decimal representation of t.

of_raw_string s see s as a hash. Useful when reading serialized hashes.

of_raw_string_opt s see s as a hash. Useful when reading serialized hashes. Returns None if s is not the digest_size bytes long.

to_raw_string s is (s :> string).