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Fix domain generation

This commit is contained in:
Hsiao-Wei Wang 2021-03-11 21:02:05 +08:00
parent 86fe6bc094
commit 9d3556668b
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GPG Key ID: 1111A8A81778319E
1 changed files with 6 additions and 4 deletions
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10
specs/lightclient/sync-protocol.md
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@ -115,7 +115,8 @@ A light client maintains its state in a `store` object of type `LightClientStore
#### `validate_light_client_update` #### `validate_light_client_update`
```python ```python
def validate_light_client_update(snapshot: LightClientSnapshot, update: LightClientUpdate) -> None: def validate_light_client_update(snapshot: LightClientSnapshot, update: LightClientUpdate,
genesis_validators_root: Root) -> None:
# Verify update slot is larger than snapshot slot # Verify update slot is larger than snapshot slot
assert update.header.slot > snapshot.header.slot assert update.header.slot > snapshot.header.slot
@ -157,7 +158,7 @@ def validate_light_client_update(snapshot: LightClientSnapshot, update: LightCli
# Verify sync committee aggregate signature # Verify sync committee aggregate signature
participant_pubkeys = [pubkey for (bit, pubkey) in zip(update.sync_committee_bits, sync_committee.pubkeys) if bit] participant_pubkeys = [pubkey for (bit, pubkey) in zip(update.sync_committee_bits, sync_committee.pubkeys) if bit]
domain = compute_domain(DOMAIN_SYNC_COMMITTEE, update.fork_version) domain = compute_domain(DOMAIN_SYNC_COMMITTEE, update.fork_version, genesis_validators_root)
signing_root = compute_signing_root(signed_header, domain) signing_root = compute_signing_root(signed_header, domain)
assert bls.FastAggregateVerify(participant_pubkeys, signing_root, update.sync_committee_signature) assert bls.FastAggregateVerify(participant_pubkeys, signing_root, update.sync_committee_signature)
``` ```
@ -177,8 +178,9 @@ def apply_light_client_update(snapshot: LightClientSnapshot, update: LightClient
#### `process_light_client_update` #### `process_light_client_update`
```python ```python
def process_light_client_update(store: LightClientStore, update: LightClientUpdate, current_slot: Slot) -> None: def process_light_client_update(store: LightClientStore, update: LightClientUpdate, current_slot: Slot,
validate_light_client_update(store.snapshot, update) genesis_validators_root: Root) -> None:
validate_light_client_update(store.snapshot, update, genesis_validators_root)
store.valid_updates.append(update) store.valid_updates.append(update)
if ( if (