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Move `verify_slashable_vote_data` to the last verification of Casper slashings

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Hsiao-Wei Wang 2018-12-13 03:04:10 +08:00
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specs/core/0_beacon-chain.md
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@ -1375,13 +1375,13 @@ Verify that `len(block.body.casper_slashings) <= MAX_CASPER_SLASHINGS`.
For each `casper_slashing` in `block.body.casper_slashings`:
* Verify that `verify_slashable_vote_data(state, casper_slashing.slashable_vote_data_1)`.
* Verify that `verify_slashable_vote_data(state, casper_slashing.slashable_vote_data_2)`.
* Verify that `casper_slashing.slashable_vote_data_1.data != casper_slashing.slashable_vote_data_2.data`.
* Let `indices(vote) = vote.aggregate_signature_poc_0_indices + vote.aggregate_signature_poc_1_indices`.
* Let `intersection = [x for x in indices(casper_slashing.slashable_vote_data_1) if x in indices(casper_slashing.slashable_vote_data_2)]`.
* Verify that `len(intersection) >= 1`.
* Verify that `casper_slashing.slashable_vote_data_1.data.justified_slot + 1 < casper_slashing.slashable_vote_data_2.data.justified_slot + 1 == casper_slashing.slashable_vote_data_2.data.slot < casper_slashing.slashable_vote_data_1.data.slot` or `casper_slashing.slashable_vote_data_1.data.slot == casper_slashing.slashable_vote_data_2.data.slot`.
* Verify that `verify_slashable_vote_data(state, casper_slashing.slashable_vote_data_1)`.
* Verify that `verify_slashable_vote_data(state, casper_slashing.slashable_vote_data_2)`.
* For each [validator](#dfn-validator) index `i` in `intersection`, if `state.validator_registry[i].status` does not equal `EXITED_WITH_PENALTY`, then run `update_validator_status(state, i, new_status=EXITED_WITH_PENALTY)`
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