[−]Derive Macro signature::Signer
#[derive(Signer)]
This is supported on
feature="derive-preview"
only.Derive the Signer
trait for a type which impls [DigestSigner
].
When implementing the [DigestSigner
] 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 Signer
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.