Macro secp256kfun::derive_nonce_rng
source · [−]macro_rules! derive_nonce_rng {
(
nonce_gen => $nonce_gen:expr,
secret => $secret:expr,
public => [$($public:expr),+],
seedable_rng => $rng:ty
) => { ... };
}
Expand description
Macro to derive a rng for producing multiple nonces.
This works like derive_nonce
except that it produces an rng with the output rather than a
scalar.
Examples
use secp256kfun::{Scalar, derive_nonce_rng, nonce::AddTag, nonce::{NonceGen,Deterministic}};
use sha2::Sha256;
let secret_scalar = Scalar::random(&mut rand::thread_rng());
let nonce_gen = Deterministic::<Sha256>::default().add_tag("my-protocol");
let mut rng = derive_nonce_rng!(
nonce_gen => nonce_gen,
secret => &secret_scalar,
public => [b"public-inputs-to-the-algorithm".as_ref()],
seedable_rng => rand::rngs::StdRng
);
let r1 = Scalar::random(&mut rng);
let r2 = Scalar::random(&mut rng);