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Implement Slashing Protection (#1116)

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* Implement slashing protection

Roll-up of #588 with some conflicts resolved

* WIP improvements

* Require slot uniqueness for blocks (rather than epochs)
* Native DB support for Slot and Epoch
* Simplify surrounding/surrounded-by queries

* Implement unified slashing protection database

A single SQL database saves on open file descriptors.

* Make slashing protection concurrency safe.

Revive tests, add parallel tests.

* Some simplifications

* Auto-registration, test clean-ups

* More tests, clean-ups, hardening

* Fix comments in BLS

* Optimise bulk validator registration

* Delete outdated tests

* Use bundled SQLite in slashing protection

* Auto-register validators in simulation

* Use real signing_root in slashing protection

* Update book for --auto-register

* Refine log messages and help flags

* Correct typo in Cargo.toml authors

* Fix merge conflicts

* Safer error handling in sqlite slot/epoch

* Address review comments

* Add attestation test mutating block root

Co-authored-by: pscott <scottpiriou@gmail.com>
This commit is contained in:
Michael Sproul
2020-05-18 16:25:16 +10:00
committed by GitHub
parent 90b3953dda
commit 2d8e2dd7f5
30 changed files with 1720 additions and 52 deletions
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7
book/src/become-a-validator-source.md
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@@ -108,9 +108,14 @@ stake.
Start the validator client with:
```bash
lighthouse validator
lighthouse validator --auto-register
```
The `--auto-register` flag registers your signing key with the slashing protection database, which
keeps track of all the messages your validator signs. This flag should be used sparingly,
as reusing the same key on multiple nodes can lead to your validator getting slashed. On subsequent
runs you should leave off the `--auto-register` flag.
You know that your validator client is running and has found your validator keys from [step 3](become-a-validator-source.html#3-start-your-beacon-node) when you see the following logs:
```