2019-09-01 15:02:49 +00:00
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import
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initial 0.9.0 spec sync (#509)
* rename compute_epoch_of_slot(...) to compute_epoch_at_slot(...)
* remove some unnecessary imports; remove some crosslink-related code and tests; complete renaming of compute_epoch_of_slot(...) to compute_epoch_at_slot(...)
* rm more transfer-related code and tests; rm more unnecessary strutils imports
* rm remaining unused imports
* remove useless get_empty_per_epoch_cache(...)/compute_start_slot_of_epoch(...) calls
* rename compute_start_slot_of_epoch(...) to compute_start_slot_at_epoch(...)
* rename ACTIVATION_EXIT_DELAY to MAX_SEED_LOOKAHEAD
* update domain types to 0.9.0
* mark AttesterSlashing, IndexedAttestation, AttestationDataAndCustodyBit, DepositData, BeaconBlockHeader, Fork, integer_squareroot(...), and process_voluntary_exit(...) as 0.9.0
* mark increase_balance(...), decrease_balance(...), get_block_root(...), CheckPoint, Deposit, PendingAttestation, HistoricalBatch, is_active_validator(...), and is_slashable_attestation_data(...) as 0.9.0
* mark compute_activation_exit_epoch(...), bls_verify(...), Validator, get_active_validator_indices(...), get_current_epoch(...), get_total_active_balance(...), and get_previous_epoch(...) as 0.9.0
* mark get_block_root_at_slot(...), ProposerSlashing, get_domain(...), VoluntaryExit, mainnet preset Gwei values, minimal preset max operations, process_block_header(...), and is_slashable_validator(...) as 0.9.0
* mark makeWithdrawalCredentials(...), get_validator_churn_limit(...), get_total_balance(...), is_valid_indexed_attestation(...), bls_aggregate_pubkeys(...), initial genesis value/constants, Attestation, get_randao_mix(...), mainnet preset max operations per block constants, minimal preset Gwei values and time parameters, process_eth1_data(...), get_shuffled_seq(...), compute_committee(...), and process_slots(...) as 0.9.0; partially update get_indexed_attestation(...) to 0.9.0 by removing crosslink refs and associated tests
* mark initiate_validator_exit(...), process_registry_updates(...), BeaconBlock, Eth1Data, compute_domain(...), process_randao(...), process_attester_slashing(...), get_base_reward(...), and process_slot(...) as 0.9.0
2019-10-30 19:41:19 +00:00
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ospaths,
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2019-09-01 15:02:49 +00:00
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stew/endians2, stint,
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2019-10-25 10:59:56 +00:00
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./extras, ./ssz,
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2019-09-01 15:02:49 +00:00
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spec/[crypto, datatypes, digest, helpers]
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func get_eth1data_stub*(deposit_count: uint64, current_epoch: Epoch): Eth1Data =
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# https://github.com/ethereum/eth2.0-pm/blob/e596c70a19e22c7def4fd3519e20ae4022349390/interop/mocked_eth1data/README.md
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let
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epochs_per_period = SLOTS_PER_ETH1_VOTING_PERIOD div SLOTS_PER_EPOCH
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voting_period = current_epoch.uint64 div epochs_per_period.uint64
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Eth1Data(
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deposit_root: hash_tree_root(voting_period),
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deposit_count: deposit_count,
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block_hash: hash_tree_root(hash_tree_root(voting_period).data),
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)
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when ValidatorPrivKey is BlsValue:
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func makeInteropPrivKey*(i: int): ValidatorPrivKey =
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discard
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{.fatal: "todo/unused?".}
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else:
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func makeInteropPrivKey*(i: int): ValidatorPrivKey =
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var bytes: array[32, byte]
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bytes[0..7] = uint64(i).toBytesLE()
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let
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# BLS381-12 curve order - same as milagro but formatted different
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curveOrder =
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"52435875175126190479447740508185965837690552500527637822603658699938581184513".parse(UInt256)
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privkeyBytes = eth2hash(bytes)
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key = (UInt256.fromBytesLE(privkeyBytes.data) mod curveOrder).toBytesBE()
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ValidatorPrivKey.init(key)
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2019-09-02 10:31:14 +00:00
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const eth1BlockHash* = block:
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var x: Eth2Digest
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for v in x.data.mitems: v = 0x42
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x
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2019-09-01 15:02:49 +00:00
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func makeWithdrawalCredentials*(k: ValidatorPubKey): Eth2Digest =
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2019-11-11 09:02:52 +00:00
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# https://github.com/ethereum/eth2.0-specs/blob/v0.9.1/specs/core/0_deposit-contract.md#withdrawal-credentials
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2019-09-01 15:02:49 +00:00
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var bytes = eth2hash(k.getBytes())
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bytes.data[0] = BLS_WITHDRAWAL_PREFIX.uint8
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bytes
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func makeDeposit*(
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pubkey: ValidatorPubKey, privkey: ValidatorPrivKey, epoch = 0.Epoch,
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amount: Gwei = MAX_EFFECTIVE_BALANCE.Gwei,
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flags: UpdateFlags = {}): Deposit =
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var
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ret = Deposit(
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data: DepositData(
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amount: amount,
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pubkey: pubkey,
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withdrawal_credentials: makeWithdrawalCredentials(pubkey)))
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if skipValidation notin flags:
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ret.data.signature =
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bls_sign(
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privkey, signing_root(ret.data).data, compute_domain(DOMAIN_DEPOSIT))
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ret
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