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Michael Sproul 923486f34c Use bulk verification for sync_aggregate signature (#2415) 
## Proposed Changes

Add the `sync_aggregate` from `BeaconBlock` to the bulk signature verifier for blocks. This necessitates a new signature set constructor for the sync aggregate, which is different from the others due to the use of [`eth2_fast_aggregate_verify`](https://github.com/ethereum/eth2.0-specs/blob/v1.1.0-alpha.7/specs/altair/bls.md#eth2_fast_aggregate_verify) for sync aggregates, per [`process_sync_aggregate`](https://github.com/ethereum/eth2.0-specs/blob/v1.1.0-alpha.7/specs/altair/beacon-chain.md#sync-aggregate-processing). I made the choice to return an optional signature set, with `None` representing the case where the signature is valid on account of being the point at infinity (requires no further checking).

To "dogfood" the changes and prevent duplication, the consensus logic now uses the signature set approach as well whenever it is required to verify signatures (which should only be in testing AFAIK). The EF tests pass with the code as it exists currently, but failed before I adapted the `eth2_fast_aggregate_verify` changes (which is good).

As a result of this change Altair block processing should be a little faster, and importantly, we will no longer accidentally verify signatures when replaying blocks, e.g. when replaying blocks from the database.
2021-07-28 05:40:21 +00:00
..
src Use bulk verification for sync_aggregate signature (#2415) 2021-07-28 05:40:21 +00:00
tests [Altair] Sync committee pools (#2321) 2021-07-15 00:52:02 +00:00
.gitignore Altair consensus changes and refactors (#2279) 2021-07-09 06:15:32 +00:00
Cargo.toml Altair consensus changes and refactors (#2279) 2021-07-09 06:15:32 +00:00
check_all_files_accessed.py [Altair] Sync committee pools (#2321) 2021-07-15 00:52:02 +00:00
Makefile Update to spec v1.1.0-beta.1 (#2460) 2021-07-27 05:43:35 +00:00
README.md Directory Restructure (#1163) 2020-05-18 21:24:23 +10:00

README.md

Ethereum 2.0 Specification Tests

This crate parses and executes the test vectors at ethereum/eth2.0-spec-tests.

Functionality is achieved only via the $ cargo test --features ef_tests command.

Running the Tests

Because the test vectors are very large, we do not download or run them by default. To download them, run (in this directory):

$ make

Note: this may download hundreds of MB of compressed archives from the ethereum/eth2.0-spec-tests, which may expand into several GB of files.

If successful, you should now have the extracted tests in ./eth2.0-spec-tests.

Run them with:

$ cargo test --features ef_tests

The tests won't run without the ef_tests feature enabled (this is to ensure that a top-level cargo test --all won't fail on missing files).

Saving Space

When you download the tests, the downloaded archives will be kept in addition to the extracted files. You have several options for saving space:

  1. Delete the archives (make clean-archives), and keep the extracted files. Suitable for everyday use, just don't re-run make or it will redownload the archives.
  2. Delete the extracted files (make clean-test-files), and keep the archives. Suitable for CI, or temporarily saving space. If you re-run make it will extract the archives rather than redownloading them.
  3. Delete everything (make clean). Good for updating to a new version, or if you no longer wish to run the EF tests.