use rand::RngCore;

pub trait KeyGen<'a, P> {
    fn gen(params: P, rand: &'a mut dyn RngCore) -> Self;
}

pub trait Signer<S> {
    fn sign(&self, msg: &[u8]) -> S;
}

pub trait Verifier<S> {
    fn verify(&self, sig: &S, msg: &[u8]) -> bool;
}