lighthouse/crypto
Michael Sproul 5828ff1204 Implement slasher (#1567)
This is an implementation of a slasher that lives inside the BN and can be enabled via `lighthouse bn --slasher`.

Features included in this PR:

- [x] Detection of attester slashing conditions (double votes, surrounds existing, surrounded by existing)
- [x] Integration into Lighthouse's attestation verification flow
- [x] Detection of proposer slashing conditions
- [x] Extraction of attestations from blocks as they are verified
- [x] Compression of chunks
- [x] Configurable history length
- [x] Pruning of old attestations and blocks
- [x] More tests

Future work:

* Focus on a slice of history separate from the most recent N epochs (e.g. epochs `current - K` to `current - M`)
* Run out-of-process
* Ingest attestations from the chain without a resync

Design notes are here https://hackmd.io/@sproul/HJSEklmPL
2020-11-23 03:43:22 +00:00
..
bls Implement slasher (#1567) 2020-11-23 03:43:22 +00:00
eth2_hashing Update external deps (#1711) 2020-10-05 08:22:19 +00:00
eth2_key_derivation Update external deps (#1711) 2020-10-05 08:22:19 +00:00
eth2_keystore Add validation to kdf parameters (#1930) 2020-11-19 08:52:51 +00:00
eth2_wallet Update tiny-bip39 dependency (#1887) 2020-11-12 00:46:33 +00:00