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Route blame between Processor and Coordinator (#427)

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* Have processor report errors during the DKG to the coordinator

* Add RemoveParticipant, InvalidDkgShare to coordinator

* Route DKG blame around coordinator

* Allow public construction of AdditionalBlameMachine

Necessary for upcoming work on handling DKG blame in the processor and
coordinator.

Additionally fixes a publicly reachable panic when commitments parsed with one
ThresholdParams are used in a machine using another set of ThresholdParams.

Renames InvalidProofOfKnowledge to InvalidCommitments.

* Remove unused error from dleq

* Implement support for VerifyBlame in the processor

* Have coordinator send the processor share message relevant to Blame

* Remove desync between processors reporting InvalidShare and ones reporting GeneratedKeyPair

* Route blame on sign between processor and coordinator

Doesn't yet act on it in coordinator.

* Move txn usage as needed for stable Rust to build

* Correct InvalidDkgShare serialization
This commit is contained in:
Luke Parker
2023-11-12 07:24:41 -05:00
committed by GitHub
parent d015ee96a3
commit 54f1929078
18 changed files with 931 additions and 281 deletions
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25
coordinator/src/tests/tributary/mod.rs
View File

@@ -88,6 +88,11 @@ fn serialize_sign_data() {
#[test]
fn serialize_transaction() {
test_read_write(Transaction::RemoveParticipant(
frost::Participant::new(u16::try_from(OsRng.next_u64() >> 48).unwrap().saturating_add(1))
.unwrap(),
));
{
let mut commitments = vec![random_vec(&mut OsRng, 512)];
for _ in 0 .. (OsRng.next_u64() % 100) {
@@ -133,6 +138,26 @@ fn serialize_transaction() {
});
}
for i in 0 .. 2 {
test_read_write(Transaction::InvalidDkgShare {
attempt: random_u32(&mut OsRng),
accuser: frost::Participant::new(
u16::try_from(OsRng.next_u64() >> 48).unwrap().saturating_add(1),
)
.unwrap(),
faulty: frost::Participant::new(
u16::try_from(OsRng.next_u64() >> 48).unwrap().saturating_add(1),
)
.unwrap(),
blame: if i == 0 {
None
} else {
Some(random_vec(&mut OsRng, 500)).filter(|blame| !blame.is_empty())
},
signed: random_signed(&mut OsRng),
});
}
test_read_write(Transaction::DkgConfirmed(
random_u32(&mut OsRng),
{