Macro impl_certificate_ed25519 

macro_rules! impl_certificate_ed25519 {
    ($subject:ty, $namespace:ty) => { ... };
}

Generates an Ed25519 signing scheme wrapper for a specific protocol.

This macro creates a complete wrapper struct with constructors, Scheme trait implementation, and a fixture function for testing.

Parameters

• $subject: The subject type used as Scheme::Subject<'a, D>. Use 'a and D in the subject type to bind to the GAT lifetime and digest type parameters.

• $namespace: The namespace type that implements Namespace. This type pre-computes and stores any protocol-specific namespace bytes derived from a base namespace. The scheme calls $namespace::derive(base) at construction time to create the namespace, then passes it to Subject::namespace() during signing and verification. For simple protocols with only a base namespace, Vec<u8> can be used directly. For protocols with multiple message types, a custom struct can pre-compute all variants.

Example

// For non-generic subject types with a single namespace:
impl_certificate_ed25519!(MySubject, Vec<u8>);

// For protocols with generic subject types:
impl_certificate_ed25519!(Subject<'a, D>, Namespace);