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quadruples.rs
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/
quadruples.rs
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use super::EcdsaPayloadError;
use crate::ecdsa::pre_signer::EcdsaTranscriptBuilder;
use ic_logger::{debug, error, ReplicaLogger};
use ic_registry_subnet_features::EcdsaConfig;
use ic_replicated_state::metadata_state::subnet_call_context_manager::SignWithEcdsaContext;
use ic_types::{
consensus::ecdsa::{self, TranscriptAttributes},
crypto::{canister_threshold_sig::idkg::IDkgTranscript, AlgorithmId},
messages::CallbackId,
Height, NodeId, RegistryVersion,
};
use std::collections::{BTreeMap, BTreeSet};
/// Update the quadruples in the payload by:
/// - making new configs when pre-conditions are met;
/// - gathering ready results (new transcripts) from ecdsa pool;
/// - moving completed quadruples from "in creation" to "available".
/// Returns the newly created transcripts.
pub(super) fn update_quadruples_in_creation(
payload: &mut ecdsa::EcdsaPayload,
transcript_cache: &dyn EcdsaTranscriptBuilder,
height: Height,
log: &ReplicaLogger,
) -> Result<Vec<IDkgTranscript>, EcdsaPayloadError> {
let mut newly_available = Vec::new();
let mut new_transcripts = Vec::new();
if let Some(key_transcript) = &payload.key_transcript.current {
let registry_version = key_transcript.registry_version();
let receivers = key_transcript.receivers().clone();
for (key, quadruple) in payload.quadruples_in_creation.iter_mut() {
// Update quadruple with completed transcripts
if quadruple.kappa_masked.is_none() {
if let Some(config) = &quadruple.kappa_masked_config {
if let Some(transcript) =
transcript_cache.get_completed_transcript(config.as_ref().transcript_id)
{
debug!(
log,
"update_quadruples_in_creation: {:?} kappa_masked transcript is made",
key
);
quadruple.kappa_masked =
Some(ecdsa::MaskedTranscript::try_from((height, &transcript))?);
new_transcripts.push(transcript);
}
}
}
if quadruple.lambda_masked.is_none() {
if let Some(transcript) = transcript_cache
.get_completed_transcript(quadruple.lambda_config.as_ref().transcript_id)
{
debug!(
log,
"update_quadruples_in_creation: {:?} lamdba_masked transcript is made", key
);
quadruple.lambda_masked =
Some(ecdsa::MaskedTranscript::try_from((height, &transcript))?);
new_transcripts.push(transcript);
}
}
if quadruple.kappa_unmasked.is_none() {
if let Some(config) = &quadruple.unmask_kappa_config {
if let Some(transcript) =
transcript_cache.get_completed_transcript(config.as_ref().transcript_id)
{
debug!(
log,
"update_quadruples_in_creation: {:?} kappa_unmasked transcript {:?} \
is made from reshare",
key,
transcript.get_type()
);
quadruple.kappa_unmasked =
Some(ecdsa::UnmaskedTranscript::try_from((height, &transcript))?);
new_transcripts.push(transcript);
}
} else if let Some(config) = &quadruple.kappa_unmasked_config {
if let Some(transcript) =
transcript_cache.get_completed_transcript(config.as_ref().transcript_id)
{
debug!(
log,
"update_quadruples_in_creation: {:?} kappa_unmasked transcript {:?} is \
made from unmasked config",
key,
transcript.get_type()
);
quadruple.kappa_unmasked =
Some(ecdsa::UnmaskedTranscript::try_from((height, &transcript))?);
new_transcripts.push(transcript);
}
}
}
if quadruple.key_times_lambda.is_none() {
if let Some(config) = &quadruple.key_times_lambda_config {
if let Some(transcript) =
transcript_cache.get_completed_transcript(config.as_ref().transcript_id)
{
debug!(
log,
"update_quadruples_in_creation: {:?} key_times_lambda transcript is made",
key
);
quadruple.key_times_lambda =
Some(ecdsa::MaskedTranscript::try_from((height, &transcript))?);
new_transcripts.push(transcript);
}
}
}
if quadruple.kappa_times_lambda.is_none() {
if let Some(config) = &quadruple.kappa_times_lambda_config {
if let Some(transcript) =
transcript_cache.get_completed_transcript(config.as_ref().transcript_id)
{
debug!(
log,
"update_quadruples_in_creation: {:?} kappa_times_lambda transcript is made",
key
);
quadruple.kappa_times_lambda =
Some(ecdsa::MaskedTranscript::try_from((height, &transcript))?);
new_transcripts.push(transcript);
}
}
}
// Check what to do in the next step
if let (Some(kappa_masked_config), Some(kappa_masked), None) = (
&quadruple.kappa_masked_config,
&quadruple.kappa_masked,
&quadruple.unmask_kappa_config,
) {
quadruple.unmask_kappa_config = Some(ecdsa::ReshareOfMaskedParams::new(
payload.uid_generator.next_transcript_id(),
receivers.clone(),
registry_version,
kappa_masked_config.as_ref(),
*kappa_masked,
));
}
if let (Some(lambda_masked), None) =
(&quadruple.lambda_masked, &quadruple.key_times_lambda_config)
{
let lambda_config = quadruple.lambda_config.as_ref();
if key_transcript.receivers() != lambda_config.receivers() {
error!(
log,
"Key transcript has a different receiver set than lambda_config: {:?} {:?}",
key_transcript,
lambda_config
);
} else {
quadruple.key_times_lambda_config =
Some(ecdsa::UnmaskedTimesMaskedParams::new(
payload.uid_generator.next_transcript_id(),
receivers.clone(),
registry_version,
(key_transcript, key_transcript.unmasked_transcript()),
(lambda_config, *lambda_masked),
));
}
}
let unmask_kappa_config = quadruple
.unmask_kappa_config
.as_ref()
.map(|config| config.as_ref());
let kappa_unmasked_config = quadruple
.kappa_unmasked_config
.as_ref()
.map(|config| config.as_ref());
if let (Some(lambda_masked), Some(kappa_config), Some(kappa_unmasked), None) = (
&quadruple.lambda_masked,
unmask_kappa_config.or(kappa_unmasked_config),
&quadruple.kappa_unmasked,
&quadruple.kappa_times_lambda_config,
) {
let lambda_config = quadruple.lambda_config.as_ref();
if kappa_config.receivers() != lambda_config.receivers() {
error!(
log,
"kappa_config has a different receiver set than lambda_config: {:?} {:?}",
kappa_config,
lambda_config
);
} else {
quadruple.kappa_times_lambda_config =
Some(ecdsa::UnmaskedTimesMaskedParams::new(
payload.uid_generator.next_transcript_id(),
receivers.clone(),
registry_version,
(kappa_config, *kappa_unmasked),
(lambda_config, *lambda_masked),
));
}
}
if let (
Some(_kappa_unmasked),
Some(_lambda_masked),
Some(_key_times_lambda),
Some(_kappa_times_lambda),
) = (
&quadruple.kappa_unmasked,
&quadruple.lambda_masked,
&quadruple.key_times_lambda,
&quadruple.kappa_times_lambda,
) {
newly_available.push(key.clone());
}
}
for key in newly_available.into_iter() {
// the following unwraps are safe
let quadruple = payload.quadruples_in_creation.remove(&key).unwrap();
let lambda_masked = quadruple.lambda_masked.unwrap();
let kappa_unmasked = quadruple.kappa_unmasked.unwrap();
let key_times_lambda = quadruple.key_times_lambda.unwrap();
let kappa_times_lambda = quadruple.kappa_times_lambda.unwrap();
debug!(
log,
"update_quadruples_in_creation: making of quadruple {:?} is complete", key
);
payload.available_quadruples.insert(
key,
ecdsa::PreSignatureQuadrupleRef::new(
kappa_unmasked,
lambda_masked,
kappa_times_lambda,
key_times_lambda,
Some(key_transcript.unmasked_transcript()),
),
);
}
}
Ok(new_transcripts)
}
/// Purge all available but unmatched quadruples that are referencing a different key transcript
/// than the one currently used.
pub(super) fn purge_old_key_quadruples(
ecdsa_payload: &mut ecdsa::EcdsaPayload,
all_signing_requests: &BTreeMap<CallbackId, SignWithEcdsaContext>,
) {
let Some(unmasked_transcript) = ecdsa_payload.key_transcript.current.as_ref() else {
return;
};
let current_key_transcript_id = unmasked_transcript.transcript_id();
let matched_quadruples = all_signing_requests
.values()
.flat_map(|context| context.matched_quadruple.clone())
.map(|(quadruple_id, _)| quadruple_id)
.collect::<BTreeSet<_>>();
ecdsa_payload.available_quadruples.retain(|id, quadruple| {
matched_quadruples.contains(id)
|| match quadruple.key_unmasked_ref.as_ref() {
Some(transcript) => transcript.as_ref().transcript_id == current_key_transcript_id,
None => true,
}
});
}
/// Creating new quadruples if necessary by updating quadruples_in_creation,
/// considering currently available quadruples, quadruples in creation, and
/// ecdsa configs.
pub(super) fn make_new_quadruples_if_needed(
ecdsa_config: &EcdsaConfig,
ecdsa_payload: &mut ecdsa::EcdsaPayload,
matched_quadruples: usize,
) {
if let Some(key_transcript) = &ecdsa_payload.key_transcript.current {
let node_ids: Vec<_> = key_transcript.receivers().iter().copied().collect();
make_new_quadruples_if_needed_helper(
&node_ids,
key_transcript.registry_version(),
ecdsa_config,
ecdsa_payload,
matched_quadruples,
)
}
}
fn make_new_quadruples_if_needed_helper(
subnet_nodes: &[NodeId],
registry_version: RegistryVersion,
ecdsa_config: &EcdsaConfig,
ecdsa_payload: &mut ecdsa::EcdsaPayload,
matched_quadruples: usize,
) {
let unassigned_quadruples = ecdsa_payload
.unassigned_quadruple_ids()
.count()
.saturating_sub(matched_quadruples);
let quadruples_to_create = ecdsa_config.quadruples_to_create_in_advance as usize;
if quadruples_to_create > unassigned_quadruples {
let quadruples_in_creation = &mut ecdsa_payload.quadruples_in_creation;
let uid_generator = &mut ecdsa_payload.uid_generator;
for _ in 0..(quadruples_to_create - unassigned_quadruples) {
let kappa_config = new_random_config(subnet_nodes, registry_version, uid_generator);
let lambda_config = new_random_config(subnet_nodes, registry_version, uid_generator);
quadruples_in_creation.insert(
uid_generator.next_quadruple_id(ecdsa_payload.key_transcript.key_id.clone()),
ecdsa::QuadrupleInCreation::new(kappa_config, lambda_config),
);
}
}
}
/// Create a new masked random transcript config and advance the
/// next_unused_transcript_id by one.
fn new_random_config(
subnet_nodes: &[NodeId],
summary_registry_version: RegistryVersion,
uid_generator: &mut ecdsa::EcdsaUIDGenerator,
) -> ecdsa::RandomTranscriptParams {
let transcript_id = uid_generator.next_transcript_id();
let dealers = subnet_nodes.iter().copied().collect::<BTreeSet<_>>();
let receivers = subnet_nodes.iter().copied().collect::<BTreeSet<_>>();
ecdsa::RandomTranscriptParams::new(
transcript_id,
dealers,
receivers,
summary_registry_version,
AlgorithmId::ThresholdEcdsaSecp256k1,
)
}
/// Create a new random unmasked transcript config and advance the
/// next_unused_transcript_id by one.
#[allow(dead_code)]
pub fn new_random_unmasked_config(
subnet_nodes: &[NodeId],
summary_registry_version: RegistryVersion,
uid_generator: &mut ecdsa::EcdsaUIDGenerator,
) -> ecdsa::RandomUnmaskedTranscriptParams {
let transcript_id = uid_generator.next_transcript_id();
let dealers = subnet_nodes.iter().copied().collect::<BTreeSet<_>>();
let receivers = subnet_nodes.iter().copied().collect::<BTreeSet<_>>();
ecdsa::RandomUnmaskedTranscriptParams::new(
transcript_id,
dealers,
receivers,
summary_registry_version,
AlgorithmId::ThresholdEcdsaSecp256k1,
)
}
#[cfg(test)]
pub(super) mod test_utils {
use crate::ecdsa::test_utils::create_sig_inputs;
use super::*;
use std::collections::BTreeMap;
use ic_management_canister_types::EcdsaKeyId;
use ic_types::{
consensus::ecdsa::{
self, EcdsaPayload, QuadrupleId, QuadrupleInCreation, UnmaskedTranscript,
},
NodeId, RegistryVersion,
};
pub fn create_new_quadruple_in_creation(
subnet_nodes: &[NodeId],
registry_version: RegistryVersion,
uid_generator: &mut ecdsa::EcdsaUIDGenerator,
key_id: EcdsaKeyId,
quadruples_in_creation: &mut BTreeMap<ecdsa::QuadrupleId, ecdsa::QuadrupleInCreation>,
) -> (ecdsa::RandomTranscriptParams, ecdsa::RandomTranscriptParams) {
let kappa_config_ref = new_random_config(subnet_nodes, registry_version, uid_generator);
let lambda_config_ref = new_random_config(subnet_nodes, registry_version, uid_generator);
quadruples_in_creation.insert(
uid_generator.next_quadruple_id(key_id),
ecdsa::QuadrupleInCreation::new(kappa_config_ref.clone(), lambda_config_ref.clone()),
);
(kappa_config_ref, lambda_config_ref)
}
pub fn create_new_quadruple_in_creation_unmasked_kappa(
subnet_nodes: &[NodeId],
registry_version: RegistryVersion,
uid_generator: &mut ecdsa::EcdsaUIDGenerator,
key_id: EcdsaKeyId,
quadruples_in_creation: &mut BTreeMap<ecdsa::QuadrupleId, ecdsa::QuadrupleInCreation>,
) -> (
ecdsa::RandomUnmaskedTranscriptParams,
ecdsa::RandomTranscriptParams,
) {
let kappa_config_ref =
new_random_unmasked_config(subnet_nodes, registry_version, uid_generator);
let lambda_config_ref = new_random_config(subnet_nodes, registry_version, uid_generator);
quadruples_in_creation.insert(
uid_generator.next_quadruple_id(key_id),
ecdsa::QuadrupleInCreation::new_with_unmasked_kappa(
kappa_config_ref.clone(),
lambda_config_ref.clone(),
),
);
(kappa_config_ref, lambda_config_ref)
}
pub fn create_available_quadruple(
ecdsa_payload: &mut EcdsaPayload,
key_id: EcdsaKeyId,
caller: u8,
) -> QuadrupleId {
create_available_quadruple_with_key_transcript(
ecdsa_payload,
caller,
key_id,
/*key_transcript=*/ None,
)
}
pub fn create_available_quadruple_with_key_transcript(
ecdsa_payload: &mut EcdsaPayload,
caller: u8,
key_id: EcdsaKeyId,
key_transcript: Option<UnmaskedTranscript>,
) -> QuadrupleId {
let sig_inputs = create_sig_inputs(caller);
let quadruple_id = ecdsa_payload.uid_generator.next_quadruple_id(key_id);
let mut quadruple_ref = sig_inputs.sig_inputs_ref.presig_quadruple_ref.clone();
quadruple_ref.key_unmasked_ref = key_transcript;
ecdsa_payload
.available_quadruples
.insert(quadruple_id.clone(), quadruple_ref);
for (t_ref, transcript) in sig_inputs.idkg_transcripts {
ecdsa_payload
.idkg_transcripts
.insert(t_ref.transcript_id, transcript);
}
quadruple_id
}
/// Return a sorted list of IDs of all transcripts in creation
pub fn config_ids(payload: &ecdsa::EcdsaPayload) -> Vec<u64> {
let mut arr = payload
.iter_transcript_configs_in_creation()
.map(|x| x.transcript_id.id())
.collect::<Vec<_>>();
arr.sort_unstable();
arr
}
/// Return a sorted list of IDs of all completed transcripts,
/// excluding the key transcript
pub fn transcript_ids(payload: &ecdsa::EcdsaPayload) -> Vec<u64> {
let key_transcript = payload.key_transcript.current.as_ref().unwrap();
let mut arr = payload
.active_transcripts()
.into_iter()
.map(|x| x.transcript_id.id())
.filter(|id| *id != key_transcript.transcript_id().id())
.collect::<Vec<_>>();
arr.sort_unstable();
arr
}
pub fn assert_quadruple_masked_kappa(quadruple: Option<&QuadrupleInCreation>) {
let quadruple = quadruple.expect("Quadruple in creation should exist");
assert_eq!(quadruple.kappa_unmasked_config, None);
}
pub fn assert_quadruple_unmasked_kappa(quadruple: Option<&QuadrupleInCreation>) {
let quadruple = quadruple.expect("Quadruple in creation should exist");
assert_eq!(quadruple.kappa_masked, None);
assert_eq!(quadruple.kappa_masked_config, None);
assert_eq!(quadruple.unmask_kappa_config, None);
}
}
#[cfg(test)]
pub(super) mod tests {
use super::test_utils::*;
use super::*;
use crate::ecdsa::test_utils::{
fake_sign_with_ecdsa_context_with_quadruple, set_up_ecdsa_payload, EcdsaPayloadTestHelper,
TestEcdsaBlockReader, TestEcdsaTranscriptBuilder,
};
use ic_crypto_test_utils_canister_threshold_sigs::{
generate_key_transcript, CanisterThresholdSigTestEnvironment, IDkgParticipants,
};
use ic_crypto_test_utils_reproducible_rng::{reproducible_rng, ReproducibleRng};
use ic_logger::replica_logger::no_op_logger;
use ic_test_utilities::types::ids::subnet_test_id;
use ic_types::{
consensus::ecdsa::{EcdsaPayload, UnmaskedTranscript},
crypto::canister_threshold_sig::idkg::IDkgTranscriptId,
SubnetId,
};
fn set_up(
rng: &mut ReproducibleRng,
subnet_id: SubnetId,
height: Height,
) -> (
EcdsaPayload,
CanisterThresholdSigTestEnvironment,
TestEcdsaBlockReader,
) {
let (mut ecdsa_payload, env, block_reader) = set_up_ecdsa_payload(
rng, subnet_id, /*nodes_count=*/ 4, /*should_create_key_transcript=*/ true,
);
ecdsa_payload
.uid_generator
.update_height(height)
.expect("Should successfully update the height");
(ecdsa_payload, env, block_reader)
}
#[test]
fn test_ecdsa_make_new_quadruples_if_needed() {
let mut rng = reproducible_rng();
let subnet_id = subnet_test_id(1);
let height = Height::new(10);
let (mut ecdsa_payload, env, _block_reader) = set_up(&mut rng, subnet_id, height);
let key_id = ecdsa_payload.key_transcript.key_id.clone();
// 4 Quadruples should be created in advance (in creation + unmatched available = 4)
let quadruples_to_create_in_advance = 4;
let ecdsa_config = EcdsaConfig {
quadruples_to_create_in_advance,
..EcdsaConfig::default()
};
// Add 3 available quadruples
for i in 0..3 {
create_available_quadruple(&mut ecdsa_payload, key_id.clone(), i);
}
// 2 available quadruples are already matched
let quadruples_already_matched = 2;
// We expect 3 quadruples in creation to be added
let expected_quadruples_in_creation = quadruples_to_create_in_advance as usize
- (ecdsa_payload.available_quadruples.len() - quadruples_already_matched);
assert_eq!(expected_quadruples_in_creation, 3);
make_new_quadruples_if_needed_helper(
&env.nodes.ids::<Vec<_>>(),
env.newest_registry_version,
&ecdsa_config,
&mut ecdsa_payload,
quadruples_already_matched,
);
assert_eq!(
ecdsa_payload.quadruples_in_creation.len() + ecdsa_payload.available_quadruples.len()
- quadruples_already_matched,
quadruples_to_create_in_advance as usize
);
// Verify the generated transcript ids.
let mut transcript_ids = BTreeSet::new();
for quadruple in &ecdsa_payload.quadruples_in_creation {
let kappa_masked_config = quadruple.1.kappa_masked_config.clone().unwrap();
let kappa_transcript_id = kappa_masked_config.as_ref().transcript_id;
transcript_ids.insert(kappa_transcript_id);
transcript_ids.insert(quadruple.1.lambda_config.as_ref().transcript_id);
assert_eq!(quadruple.1.kappa_unmasked_config, None);
}
assert_eq!(transcript_ids.len(), 2 * expected_quadruples_in_creation);
assert_eq!(
transcript_ids,
BTreeSet::from([
IDkgTranscriptId::new(subnet_id, /*id=*/ 0, height),
IDkgTranscriptId::new(subnet_id, /*id=*/ 1, height),
IDkgTranscriptId::new(subnet_id, /*id=*/ 2, height),
IDkgTranscriptId::new(subnet_id, /*id=*/ 3, height),
IDkgTranscriptId::new(subnet_id, /*id=*/ 4, height),
IDkgTranscriptId::new(subnet_id, /*id=*/ 5, height),
])
);
assert_eq!(
ecdsa_payload.peek_next_transcript_id().id() as usize,
2 * expected_quadruples_in_creation,
);
}
#[test]
fn test_ecdsa_update_quadruples_in_creation() {
let mut rng = reproducible_rng();
let subnet_id = subnet_test_id(1);
let (mut payload, env, mut block_reader) = set_up(&mut rng, subnet_id, Height::from(100));
let transcript_builder = TestEcdsaTranscriptBuilder::new();
// Start quadruple creation
let (kappa_config_ref, lambda_config_ref) = create_new_quadruple_in_creation(
&env.nodes.ids::<Vec<_>>(),
env.newest_registry_version,
&mut payload.uid_generator,
payload.key_transcript.key_id.clone(),
&mut payload.quadruples_in_creation,
);
// 0. No action case
let cur_height = Height::new(1000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
);
assert!(result.unwrap().is_empty());
// check if nothing has changed
assert!(payload.available_quadruples.is_empty());
assert_eq!(payload.peek_next_transcript_id().id(), 2);
assert_eq!(payload.iter_transcript_configs_in_creation().count(), 2);
assert!(transcript_ids(&payload).is_empty());
assert_eq!(config_ids(&payload), [0, 1]);
assert_quadruple_masked_kappa(payload.quadruples_in_creation.values().next());
// 1. When kappa_masked is ready, expect a new kappa_unmasked config.
let kappa_transcript = {
let param = kappa_config_ref.as_ref();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder
.add_transcript(kappa_config_ref.as_ref().transcript_id, kappa_transcript);
let cur_height = Height::new(2000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 1);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert!(payload.available_quadruples.is_empty());
let kappa_unmasked_config_id = IDkgTranscriptId::new(subnet_id, 2, cur_height);
assert_eq!(payload.peek_next_transcript_id().id(), 3);
assert_eq!(transcript_ids(&payload), [0]);
assert_eq!(config_ids(&payload), [1, 2]);
assert_quadruple_masked_kappa(payload.quadruples_in_creation.values().next());
// 2. When lambda_masked is ready, expect a new key_times_lambda config.
let lambda_transcript = {
let param = lambda_config_ref.as_ref(); //env.params_for_random_sharing(algorithm);
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder
.add_transcript(lambda_config_ref.as_ref().transcript_id, lambda_transcript);
let cur_height = Height::new(3000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 1);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert!(payload.available_quadruples.is_empty());
assert_eq!(payload.peek_next_transcript_id().id(), 4);
let key_times_lambda_config_id = IDkgTranscriptId::new(subnet_id, 3, cur_height);
assert_eq!(transcript_ids(&payload), [0, 1]);
assert_eq!(config_ids(&payload), [2, 3]);
assert_quadruple_masked_kappa(payload.quadruples_in_creation.values().next());
// 3. When kappa_unmasked and lambda_masked is ready, expect kappa_times_lambda
// config.
let kappa_unmasked_transcript = {
let param = payload
.iter_transcript_configs_in_creation()
.find(|x| x.transcript_id == kappa_unmasked_config_id)
.unwrap()
.clone();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder.add_transcript(kappa_unmasked_config_id, kappa_unmasked_transcript);
let cur_height = Height::new(4000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 1);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert!(payload.available_quadruples.is_empty());
assert_eq!(payload.peek_next_transcript_id().id(), 5);
let kappa_times_lambda_config_id = IDkgTranscriptId::new(subnet_id, 4, cur_height);
assert_eq!(transcript_ids(&payload), [0, 1, 2]);
assert_eq!(config_ids(&payload), [3, 4]);
assert_quadruple_masked_kappa(payload.quadruples_in_creation.values().next());
// 4. When both kappa_times_lambda and key_times_lambda are ready, quadruple is
// complete.
let kappa_times_lambda_transcript = {
let param = payload
.iter_transcript_configs_in_creation()
.find(|x| x.transcript_id == kappa_times_lambda_config_id)
.unwrap()
.clone();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder
.add_transcript(kappa_times_lambda_config_id, kappa_times_lambda_transcript);
let key_times_lambda_transcript = {
let param = payload
.iter_transcript_configs_in_creation()
.find(|x| x.transcript_id == key_times_lambda_config_id)
.unwrap()
.clone();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder.add_transcript(key_times_lambda_config_id, key_times_lambda_transcript);
let cur_height = Height::new(5000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 2);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert_eq!(payload.available_quadruples.len(), 1);
assert_eq!(payload.quadruples_in_creation.len(), 0);
assert_eq!(payload.peek_next_transcript_id().id(), 5);
assert_eq!(transcript_ids(&payload), [1, 2, 3, 4]);
assert!(config_ids(&payload).is_empty());
let quadruple_ref = payload.available_quadruples.values().next().unwrap();
quadruple_ref
.translate(&block_reader)
.expect("Translating should succeed");
}
#[test]
fn test_ecdsa_update_quadruples_in_creation_unmasked_kappa() {
let mut rng = reproducible_rng();
let subnet_id = subnet_test_id(1);
let (mut payload, env, mut block_reader) = set_up(&mut rng, subnet_id, Height::from(100));
let transcript_builder = TestEcdsaTranscriptBuilder::new();
// Start quadruple creation
let (kappa_unmasked_config_ref, lambda_config_ref) =
create_new_quadruple_in_creation_unmasked_kappa(
&env.nodes.ids::<Vec<_>>(),
env.newest_registry_version,
&mut payload.uid_generator,
payload.key_transcript.key_id.clone(),
&mut payload.quadruples_in_creation,
);
// 0. No action case
let cur_height = Height::new(1000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
);
assert!(result.unwrap().is_empty());
// check if nothing has changed
assert!(payload.available_quadruples.is_empty());
assert_eq!(payload.peek_next_transcript_id().id(), 2);
assert!(transcript_ids(&payload).is_empty());
assert_eq!(config_ids(&payload), [0, 1]);
assert_quadruple_unmasked_kappa(payload.quadruples_in_creation.values().next());
// 1. When lambda_masked is ready, expect a new key_times_lambda config.
let lambda_transcript = {
let param = lambda_config_ref.as_ref();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder
.add_transcript(lambda_config_ref.as_ref().transcript_id, lambda_transcript);
let cur_height = Height::new(2000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 1);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert!(payload.available_quadruples.is_empty());
assert_eq!(payload.peek_next_transcript_id().id(), 3);
let key_times_lambda_config_id = IDkgTranscriptId::new(subnet_id, 2, cur_height);
assert_eq!(transcript_ids(&payload), [1]);
assert_eq!(config_ids(&payload), [0, 2]);
assert_quadruple_unmasked_kappa(payload.quadruples_in_creation.values().next());
// 2. When kappa_unmasked and lambda_masked is ready, expect kappa_times_lambda
// config.
let kappa_unmasked_transcript = {
let param = kappa_unmasked_config_ref.as_ref();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder.add_transcript(
kappa_unmasked_config_ref.as_ref().transcript_id,
kappa_unmasked_transcript,
);
let cur_height = Height::new(3000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 1);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert!(payload.available_quadruples.is_empty());
assert_eq!(payload.peek_next_transcript_id().id(), 4);
let kappa_times_lambda_config_id = IDkgTranscriptId::new(subnet_id, 3, cur_height);
assert_eq!(transcript_ids(&payload), [0, 1]);
assert_eq!(config_ids(&payload), [2, 3]);
assert_quadruple_unmasked_kappa(payload.quadruples_in_creation.values().next());
// 3. When both kappa_times_lambda and key_times_lambda are ready, quadruple is
// complete.
let kappa_times_lambda_transcript = {
let param = payload
.iter_transcript_configs_in_creation()
.find(|x| x.transcript_id == kappa_times_lambda_config_id)
.unwrap()
.clone();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder
.add_transcript(kappa_times_lambda_config_id, kappa_times_lambda_transcript);
let key_times_lambda_transcript = {
let param = payload
.iter_transcript_configs_in_creation()
.find(|x| x.transcript_id == key_times_lambda_config_id)
.unwrap()
.clone();
env.nodes.run_idkg_and_create_and_verify_transcript(
¶m.translate(&block_reader).unwrap(),
&mut rng,
)
};
transcript_builder.add_transcript(key_times_lambda_config_id, key_times_lambda_transcript);
let cur_height = Height::new(5000);
let update_res = payload.uid_generator.update_height(cur_height);
assert!(update_res.is_ok());
let result = update_quadruples_in_creation(
&mut payload,
&transcript_builder,
cur_height,
&no_op_logger(),
)
.unwrap();
assert_eq!(result.len(), 2);
for completed_transcript in result {
block_reader.add_transcript(
ecdsa::TranscriptRef::new(cur_height, completed_transcript.transcript_id),
completed_transcript,
);
}
// check if new config is made
assert_eq!(payload.available_quadruples.len(), 1);
assert_eq!(payload.quadruples_in_creation.len(), 0);
assert_eq!(payload.peek_next_transcript_id().id(), 4);
assert_eq!(transcript_ids(&payload), [0, 1, 2, 3]);
assert!(config_ids(&payload).is_empty());
let quadruple_ref = payload.available_quadruples.values().next().unwrap();
quadruple_ref
.translate(&block_reader)
.expect("Translating should succeed");
}
fn get_current_unmasked_key_transcript(payload: &EcdsaPayload) -> UnmaskedTranscript {
let transcript = payload.key_transcript.current.clone();
transcript.unwrap().unmasked_transcript()
}
#[test]
fn test_matched_quadruples_are_not_purged() {
let mut rng = reproducible_rng();
let (mut payload, env, _) = set_up(&mut rng, subnet_test_id(1), Height::from(100));
let key_id = payload.key_transcript.key_id.clone();
let key_transcript = get_current_unmasked_key_transcript(&payload);
let (dealers, receivers) = env.choose_dealers_and_receivers(
&IDkgParticipants::AllNodesAsDealersAndReceivers,
&mut rng,
);
let transcript = generate_key_transcript(
&env,
&dealers,
&receivers,
AlgorithmId::ThresholdEcdsaSecp256k1,
&mut rng,
);
let key_transcript2 =
UnmaskedTranscript::try_from((Height::from(200), &transcript)).unwrap();
// Create three quadruples, with the current, a different, no key transcript.
let quadruple_ids = vec![
create_available_quadruple_with_key_transcript(
&mut payload,
1,
key_id.clone(),
Some(key_transcript),
),
create_available_quadruple_with_key_transcript(
&mut payload,
2,
key_id.clone(),
Some(key_transcript2),
),
create_available_quadruple_with_key_transcript(&mut payload, 3, key_id.clone(), None),
];
// All three quadruples are matched with a context
let contexts = BTreeMap::from_iter(quadruple_ids.into_iter().map(|id| {
fake_sign_with_ecdsa_context_with_quadruple(id.id() as u8, key_id.clone(), Some(id))
}));