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Ethereum consensus client in Rust
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Michael Sproul df02639b71 De-duplicate attestations in the slasher (#2767) 
## Issue Addressed

Closes https://github.com/sigp/lighthouse/issues/2112
Closes https://github.com/sigp/lighthouse/issues/1861

## Proposed Changes

Collect attestations by validator index in the slasher, and use the magic of reference counting to automatically discard redundant attestations. This results in us storing only 1-2% of the attestations observed when subscribed to all subnets, which carries over to a 50-100x reduction in data stored 🎉 

## Additional Info

There's some nuance to the configuration of the `slot-offset`. It has a profound effect on the effictiveness of de-duplication, see the docs added to the book for an explanation: 5442e695e5/book/src/slasher.md (slot-offset)
2021-11-08 00:01:09 +00:00
.github Add cargo vendor test (#2076) 2021-11-05 04:42:12 +00:00
account_manager Export slashing protection per validator (#2674) 2021-10-19 00:30:38 +00:00
beacon_node De-duplicate attestations in the slasher (#2767) 2021-11-08 00:01:09 +00:00
book De-duplicate attestations in the slasher (#2767) 2021-11-08 00:01:09 +00:00
boot_node Rename eth2_libp2p to lighthouse_network (#2702) 2021-10-19 00:30:39 +00:00
common Fix linting error on Windows (#2759) 2021-11-01 07:44:42 +00:00
consensus Check proposer index during block production (#2740) 2021-11-01 07:44:40 +00:00
crypto Get arbitrary check passing (2.0) (#2710) 2021-10-14 02:58:11 +00:00
lcli Rename eth2_libp2p to lighthouse_network (#2702) 2021-10-19 00:30:39 +00:00
lighthouse De-duplicate attestations in the slasher (#2767) 2021-11-08 00:01:09 +00:00
scripts Fix name collision in script (#2678) 2021-10-05 22:54:11 +00:00
slasher De-duplicate attestations in the slasher (#2767) 2021-11-08 00:01:09 +00:00
testing Add note about java dependency (#2746) 2021-10-25 22:11:26 +00:00
validator_client Check proposer index during block production (#2740) 2021-11-01 07:44:40 +00:00
.dockerignore Update spec tests to v1.1.0-beta.4 (#2548) 2021-09-25 05:58:35 +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 Update prometheus to v0.13.0 (#2757) 2021-11-01 05:52:30 +00:00
Cargo.toml Rename eth2_libp2p to lighthouse_network (#2702) 2021-10-19 00:30:39 +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 Add cargo vendor test (#2076) 2021-11-05 04:42:12 +00:00
README.md Fix readme typo (#2312) 2021-04-14 02:30:54 +00:00
SECURITY.md Add how users should report security vulnerabilities for this repository (#2562) 2021-09-07 01:54:05 +00:00

README.md

Lighthouse: Ethereum 2.0

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

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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).