Function sig_setup

saver/src/tests.rs:45–64

(
    rng: &mut R,
    message_count: u32,
)

type Fr = <Bls12_381 as Pairing>::ScalarField;

fn sig_setup<R: RngCore>(
    rng: &mut R,
    message_count: u32,
) -> (
    Vec<Fr>,
    SignatureParamsG1<Bls12_381>,
    KeypairG2<Bls12_381>,
    SignatureG1<Bls12_381>,
) {
    let messages: Vec<Fr> = (0..message_count)
        .into_iter()
        .map(|_| Fr::rand(rng))
        .collect();
    let params = SignatureParamsG1::<Bls12_381>::generate_using_rng(rng, message_count);
    let keypair = KeypairG2::<Bls12_381>::generate_using_rng(rng, &params);
    let sig = SignatureG1::<Bls12_381>::new(rng, &messages, &keypair.secret_key, &params).unwrap();
    sig.verify(&messages, keypair.public_key.clone(), params.clone())
        .unwrap();
    (messages, params, keypair, sig)
}

#[test]
fn bbs_plus_verifiably_encrypt_message() {