57 lines
2.0 KiB
Nim
57 lines
2.0 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2021 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [Defect].}
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import
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stew/endians2, stint,
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./extras,
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spec/[eth2_merkleization, keystore, signatures],
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spec/datatypes/base
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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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voting_period = current_epoch.uint64 div EPOCHS_PER_ETH1_VOTING_PERIOD
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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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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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# BLS381-12 curve order - same as milagro but formatted differently
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const curveOrder =
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u256"52435875175126190479447740508185965837690552500527637822603658699938581184513"
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let
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privkeyBytes = eth2digest(bytes)
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key = (UInt256.fromBytesLE(privkeyBytes.data) mod curveOrder).toBytesBE()
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ValidatorPrivKey.fromRaw(key).get
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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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func makeDeposit*(
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preset: RuntimeConfig,
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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 = {}): DepositData =
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result = 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 skipBLSValidation notin flags:
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result.signature = preset.get_deposit_signature(result, privkey).toValidatorSig()
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