1.7 KiB
| title | code_owner | round | category | repositories |
|---|---|---|---|---|
| SSZ (De)Serialization & Tree hashing | Zahary Karadjov (zah) | Audit round 2 | Network Core Audit | nim-beacon-chain |
Relevant modules:
SSZ spec implementation: https://github.com/status-im/nim-beacon-chain/tree/master/beacon_chain/ssz
Spec: https://github.com/ethereum/eth2.0-specs/blob/dev/ssz/simple-serialize.md
Lower-level layers:
- Nim-serialization https://github.com/status-im/nim-serialization/ Implements compile-time reflection responsible for operations such as "List all serializable fields of an object", defines a generic protocol and a set of extensibility points (overloadable functions) that can be used to provide custom serialization for certain types.
May be sensitive to bugs in the Nim compiler related to generic programming.
- Nim-FastStreams https://github.com/status-im/nim-faststreams/ Defines low-level interfaces for working with various synchronous and asynchronous input streams.
The SSZ implementation is tested against the official Eth2 test suite here: https://github.com/status-im/nim-beacon-chain/blob/master/tests/official/test_fixture_ssz_consensus_objects.nim https://github.com/status-im/nim-beacon-chain/blob/master/tests/official/test_fixture_ssz_generic_types.nim
Run the tests with: nim c -r tests/official/test_fixture_ssz_consensus_objects.nim
Also, with some basic fuzzing tests here: https://github.com/status-im/nim-beacon-chain/blob/master/scripts/run_ssz_fuzzing_test.nims https://github.com/status-im/nim-beacon-chain/blob/master/tests/fuzzing/ssz_fuzzing.nim
The fuzzing tests can be launched with:
nim scripts/run_ssz_fuzzing_test.nims Attestation
or
nim scripts/run_ssz_fuzzing_test.nims --fuzzer:honggfuz Attestation