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Sign full Exit message so that a validator can prevent tampering (#468)

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Alex Stokes 2019-01-18 02:10:23 -08:00 committed by Justin
parent c8a42c4dcc
commit a7307b9236
1 changed files with 2 additions and 1 deletions
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specs/core/0_beacon-chain.md
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@ -1585,7 +1585,8 @@ For each `exit` in `block.body.exits`:
* Let `validator = state.validator_registry[exit.validator_index]`.
* Verify that `validator.exit_slot > state.slot + ENTRY_EXIT_DELAY`.
* Verify that `state.slot >= exit.slot`.
* Verify that `bls_verify(pubkey=validator.pubkey, message=ZERO_HASH, signature=exit.signature, domain=get_domain(state.fork, exit.slot, DOMAIN_EXIT))`.
* Let `exit_message = hash_tree_root(Exit(slot=exit.slot, validator_index=exit.validator_index, signature=EMPTY_SIGNATURE))`.
* Verify that `bls_verify(pubkey=validator.pubkey, message=exit_message, signature=exit.signature, domain=get_domain(state.fork, exit.slot, DOMAIN_EXIT))`.
* Run `initiate_validator_exit(state, exit.validator_index)`.
#### Custody