Derive Macro signature_derive::Verifier

#[derive(Verifier)]

Derive the Verifier trait for a type which impls [DigestVerifier].

When implementing the [DigestVerifier] trait for a signature type which itself impl's the [PrehashSignature] trait (which marks signature algorithms which are computed using a Digest), signature providers can automatically derive the Verifier trait when the digest algorithm is [PrehashSignature::Digest] (i.e. the "standard" digest algorithm for a given signature type)

This automates all of the digest computation otherwise needed for a complete signature algorithm implementation.