Function signatory::verify_digest

pub fn verify_digest<D, L, S>(
    verifier: &dyn DigestVerifier<D, S>, 
    digest: D, 
    signature: &S
) -> Result<(), Error> where
    D: Digest,
    S: Signature, 

Verify the given prehashed Digest with the given Verifier. This can be used to avoid importing the DigestVerifier and Signature traits