Function run_with_setup

pub async fn run_with_setup<S, M, F>(
    setups: impl IntoIterator<Item = S>,
    party_start: impl FnMut(u16, MpcParty<M, MockedDelivery<M>>, S) -> F,
) -> SimResult<F::Output>
where
    M: Clone + Send + Unpin + 'static,
    F: Future,

Available on crate features sim and sim-async only.

Simulates execution of the protocol

Similar to run, but allows some setup to be provided to the protocol execution function.

Simulation will have as many parties as setups iterator yields

Example

use round_based::{Mpc, PartyIndex};

// Any MPC protocol you want to test
pub async fn protocol_of_random_generation<M>(
    rng: impl rand::RngCore,
    party: M,
    i: PartyIndex,
    n: u16
) -> Result<Randomness>
where
    M: Mpc<ProtocolMessage = Msg>
{
    // ...
}

let mut rng = rand_dev::DevRng::new();
let n = 3;
let output = round_based::sim::async_env::run_with_setup(
    core::iter::repeat_with(|| rng.fork()).take(n.into()),
    |i, party, rng| protocol_of_random_generation(rng, party, i, n),
)
.await
// unwrap `Result`s
.expect_ok()
// check that all parties produced the same response
.expect_eq();

println!("Output randomness: {}", hex::encode(output));