class Hmac
pub class Hmac<D :: [Digest]>A message authentication code over a digest (RFC 2104): Hmac<Sha256>.new(key), then update
and finish as with a digest. Compare the code it returns with constantTimeEq, not ==.
Methods
pub static fn new(key: Slice<uint8>): Hmac<D>Returns an HMAC keyed with key, fed nothing yet.
pub mut fn update(bytes: Slice<uint8>): voidFeeds bytes to the message.
pub fn finish(): uint8[]Returns the code of everything fed so far, D.size bytes.