mod proverkey;
mod verifierkey;
pub use proverkey::ProverKey;
pub use verifierkey::VerifierKey;
use dusk_bls12_381::Scalar;
fn delta(f: Scalar) -> Scalar {
let f_1 = f - Scalar::one();
let f_2 = f - Scalar::from(2);
let f_3 = f - Scalar::from(3);
f * f_1 * f_2 * f_3
}