cerc-io/lighthouse
15
0
Fork 0
Code Issues 1 Pull Requests Packages Projects Releases Wiki Activity
Ethereum consensus client in Rust
4,065 Commits 2 Branches 0 Tags 125 MiB
Rust 99.5%
Shell 0.2%
Makefile 0.1%
ceda27371d
Go to file
Paul Hauner ceda27371d Ensure doppelganger detects attestations in blocks (#2495) 
## Issue Addressed

NA

## Proposed Changes

When testing our (not-yet-released) Doppelganger implementation, I noticed that we aren't detecting attestations included in blocks (only those on the gossip network).

This is because during [block processing](e8c0d1f19b/beacon_node/beacon_chain/src/beacon_chain.rs (L2168)) we only update the `observed_attestations` cache with each attestation, but not the `observed_attesters` cache. This is the correct behaviour when we consider the [p2p spec](https://github.com/ethereum/eth2.0-specs/blob/v1.0.1/specs/phase0/p2p-interface.md):

> [IGNORE] There has been no other valid attestation seen on an attestation subnet that has an identical attestation.data.target.epoch and participating validator index.

We're doing the right thing here and still allowing attestations on gossip that we've seen in a block. However, this doesn't work so nicely for Doppelganger.

To resolve this, I've taken the following steps:

- Add a `observed_block_attesters` cache.
- Rename `observed_attesters` to `observed_gossip_attesters`.

## TODO

- [x] Add a test to ensure a validator that's been seen in a block attestation (but not a gossip attestation) returns `true` for `BeaconChain::validator_seen_at_epoch`.
- [x] Add a test to ensure `observed_block_attesters` isn't polluted via gossip attestations and vice versa. 


Co-authored-by: realbigsean <seananderson33@gmail.com>
2021-08-09 02:43:03 +00:00
.github Update mdbook version in github actions (#2497) 2021-08-05 00:58:23 +00:00
account_manager Rust 1.54.0 lints (#2483) 2021-07-30 01:11:47 +00:00
beacon_node Ensure doppelganger detects attestations in blocks (#2495) 2021-08-09 02:43:03 +00:00
book Add docs for doppelganger protection (#2496) 2021-08-06 02:13:16 +00:00
boot_node Altair validator client and HTTP API (#2404) 2021-08-06 00:47:31 +00:00
common Altair validator client and HTTP API (#2404) 2021-08-06 00:47:31 +00:00
consensus Altair validator client and HTTP API (#2404) 2021-08-06 00:47:31 +00:00
crypto Rust 1.54.0 lints (#2483) 2021-07-30 01:11:47 +00:00
lcli Altair validator client and HTTP API (#2404) 2021-08-06 00:47:31 +00:00
lighthouse Doppelganger detection (#2230) 2021-07-31 03:50:52 +00:00
remote_signer Rust 1.54.0 lints (#2483) 2021-07-30 01:11:47 +00:00
scripts Altair validator client and HTTP API (#2404) 2021-08-06 00:47:31 +00:00
slasher Rust 1.54.0 lints (#2483) 2021-07-30 01:11:47 +00:00
testing Doppelganger detection (#2230) 2021-07-31 03:50:52 +00:00
validator_client Add docs for doppelganger protection (#2496) 2021-08-06 02:13:16 +00:00
.dockerignore Use OS file locks in validator client (#1958) 2020-11-26 11:25:46 +00:00
.editorconfig Add editorconfig template 2019-03-11 15:09:57 +11:00
.gitignore Delete uncompressed genesis states (#2092) 2020-12-16 03:44:05 +00:00
.gitmodules Replace EF tests submodule with a makefile 2019-09-08 04:19:54 +10:00
bors.toml Add Windows to Bors config (#2358) 2021-05-20 00:23:08 +00:00
Cargo.lock Altair validator client and HTTP API (#2404) 2021-08-06 00:47:31 +00:00
Cargo.toml Improve compilation error on 32-bit (#2424) 2021-06-30 04:56:22 +00:00
CONTRIBUTING.md Update CONTRIBUTING.md (#751) 2020-01-03 10:45:53 +11:00
Cross.toml Ensure RUSTFLAGS is passed through on cross compile (#1529) 2020-08-17 10:06:06 +00:00
Dockerfile Update outdated dependencies (#2425) 2021-07-05 00:54:17 +00:00
Dockerfile.cross Multiarch docker GitHub actions (#2065) 2020-12-09 06:06:37 +00:00
LICENSE Update License to Apache 2.0 2019-04-15 16:47:35 +10:00
Makefile Cache participating indices for Altair epoch processing (#2416) 2021-07-27 07:01:01 +00:00
README.md Fix readme typo (#2312) 2021-04-14 02:30:54 +00:00

README.md

Lighthouse: Ethereum 2.0

An open-source Ethereum 2.0 client, written in Rust and maintained by Sigma Prime.

Build Status Book Status Chat Badge

Documentation

Banner

Overview

Lighthouse is:

  • Ready for use on Eth2 mainnet.
  • Fully open-source, licensed under Apache 2.0.
  • Security-focused. Fuzzing techniques have been continuously applied and several external security reviews have been performed.
  • Built in Rust, a modern language providing unique safety guarantees and excellent performance (comparable to C++).
  • Funded by various organisations, including Sigma Prime, the Ethereum Foundation, ConsenSys, the Decentralization Foundation and private individuals.
  • Actively involved in the specification and security analysis of the Ethereum 2.0 specification.

Eth2 Deposit Contract

The Lighthouse team acknowledges 0x00000000219ab540356cBB839Cbe05303d7705Fa as the canonical Eth2 deposit contract address.

Documentation

The Lighthouse Book contains information for users and developers.

The Lighthouse team maintains a blog at lighthouse.sigmaprime.io which contains periodical progress updates, roadmap insights and interesting findings.

Branches

Lighthouse maintains two permanent branches:

  • stable: Always points to the latest stable release.
    • This is ideal for most users.
  • unstable: Used for development, contains the latest PRs.
    • Developers should base their PRs on this branch.

Contributing

Lighthouse welcomes contributors.

If you are looking to contribute, please head to the Contributing section of the Lighthouse book.

Contact

The best place for discussion is the Lighthouse Discord server. Alternatively, you may use the sigp/lighthouse gitter.

Sign up to the Lighthouse Development Updates mailing list for email notifications about releases, network status and other important information.

Encrypt sensitive messages using our PGP key.

Donations

Lighthouse is an open-source project and a public good. Funding public goods is hard and we're grateful for the donations we receive from the community via:

  • Gitcoin Grants.
  • Ethereum address: 0x25c4a76E7d118705e7Ea2e9b7d8C59930d8aCD3b (donation.sigmaprime.eth).