coconut_crypto/setup/
mod.rs

1//! Modified Pointcheval-Sanders signature scheme setup.
2//! Defines params, public/private keys, and setup params.
3//! Implements keygen based on Shamir's secret sharing.
4
5use alloc::vec::Vec;
6
7pub mod keygen;
8pub mod keypair;
9pub mod signature_params;
10
11pub use keypair::*;
12pub use signature_params::*;
13
14/// **Not intended to be used anywhere except for tests.**
15/// Initializes secret/public key along with params and messages to be used in tests.
16#[allow(clippy::type_complexity)]
17pub fn test_setup<E, D, R>(
18    rng: &mut R,
19    message_count: usize,
20) -> (
21    SecretKey<E::ScalarField>,
22    PublicKey<E>,
23    SignatureParams<E>,
24    Vec<E::ScalarField>,
25)
26where
27    E: ark_ec::pairing::Pairing,
28    D: digest::Digest,
29    R: ark_std::rand::RngCore,
30{
31    use crate::helpers::n_rand;
32
33    let params = SignatureParams::new::<D>(b"test", message_count as u32);
34    let secret = SecretKey::rand(rng, message_count as u32);
35    let public = PublicKey::new(&secret, &params);
36    let messages = n_rand(rng, message_count).collect();
37
38    (secret, public, params, messages)
39}
coconut_crypto/setup/mod.rs

coconut_crypto/setup/
mod.rs
