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Update the coordinator binary for the new DKG

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This does not yet update any tests.
This commit is contained in:
Luke Parker
2024-08-04 04:48:12 -04:00
parent 58a435d4e9
commit 54eefbde0c
17 changed files with 401 additions and 952 deletions
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41
coordinator/src/substrate/mod.rs
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@@ -10,7 +10,7 @@ use ciphersuite::{group::GroupEncoding, Ciphersuite, Ristretto};
use serai_client::{
SeraiError, Block, Serai, TemporalSerai,
primitives::{BlockHash, NetworkId},
primitives::{BlockHash, EmbeddedEllipticCurve, NetworkId},
validator_sets::{primitives::ValidatorSet, ValidatorSetsEvent},
in_instructions::InInstructionsEvent,
coins::CoinsEvent,
@@ -60,13 +60,46 @@ async fn handle_new_set<D: Db>(
{
log::info!("present in set {:?}", set);
let set_data = {
let validators;
let mut evrf_public_keys = vec![];
{
let serai = serai.as_of(block.hash());
let serai = serai.validator_sets();
let set_participants =
serai.participants(set.network).await?.expect("NewSet for set which doesn't exist");
set_participants.into_iter().map(|(k, w)| (k, u16::try_from(w).unwrap())).collect::<Vec<_>>()
validators = set_participants
.iter()
.map(|(k, w)| {
(
<Ristretto as Ciphersuite>::read_G::<&[u8]>(&mut k.0.as_ref())
.expect("invalid key registered as participant"),
u16::try_from(*w).unwrap(),
)
})
.collect::<Vec<_>>();
for (validator, _) in set_participants {
// This is only run for external networks which always do a DKG for Serai
let substrate = serai
.embedded_elliptic_curve_key(validator, EmbeddedEllipticCurve::Embedwards25519)
.await?
.expect("Serai called NewSet on a validator without an Embedwards25519 key");
// `embedded_elliptic_curves` is documented to have the second entry be the
// network-specific curve (if it exists and is distinct from Embedwards25519)
let network =
if let Some(embedded_elliptic_curve) = set.network.embedded_elliptic_curves().get(1) {
serai.embedded_elliptic_curve_key(validator, *embedded_elliptic_curve).await?.expect(
"Serai called NewSet on a validator without the embedded key required for the network",
)
} else {
substrate.clone()
};
evrf_public_keys.push((
<[u8; 32]>::try_from(substrate)
.expect("validator-sets pallet accepted a key of an invalid length"),
network,
));
}
};
let time = if let Ok(time) = block.time() {
@@ -90,7 +123,7 @@ async fn handle_new_set<D: Db>(
const SUBSTRATE_TO_TRIBUTARY_TIME_DELAY: u64 = 120;
let time = time + SUBSTRATE_TO_TRIBUTARY_TIME_DELAY;
let spec = TributarySpec::new(block.hash(), time, set, set_data);
let spec = TributarySpec::new(block.hash(), time, set, validators, evrf_public_keys);
log::info!("creating new tributary for {:?}", spec.set());