forked from DecentralizedClimateFoundation/DCIPs
36 lines
740 B
Python
36 lines
740 B
Python
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#!/usr/bin/env python
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from dataclasses import dataclass
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from hashlib import sha256 as SHA256
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DEPOSIT_CONTRACT_DEPTH = 32
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Hash32 = bytes
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Root = bytes
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uint64 = int
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BLSPubkey = bytes
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Bytes32 = bytes
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Gwei = uint64
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BLSSignature = bytes
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@dataclass
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class DepositData:
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pubkey: BLSPubkey
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withdrawal_credentials: Bytes32
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amount: Gwei
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signature: BLSSignature
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@dataclass
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class Eth1Data:
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deposit_root: Root
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deposit_count: uint64
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block_hash: Hash32
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def sha256(x) -> Hash32:
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return SHA256(x).digest()
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def to_le_bytes(i: int) -> bytes:
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return i.to_bytes(32, byteorder='little')
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zerohashes = [b'\x00' * 32]
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for i in range(1, DEPOSIT_CONTRACT_DEPTH):
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zerohashes.append(sha256(zerohashes[i-1] + zerohashes[i-1]))
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