49 lines
1.3 KiB
Nim
49 lines
1.3 KiB
Nim
# Nimbus
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# Copyright (c) 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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# https://github.com/ethereum/stateless-ethereum-specs/blob/master/state-network.md#content
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{.push raises: [Defect].}
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import
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nimcrypto/[sha2, hash], eth/ssz/ssz_serialization
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type
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ByteList* = List[byte, 2048]
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ContentType* = enum
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Account = 0x01
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ContractStorage = 0x02
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ContractBytecode = 0x03
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NetworkId* = uint16
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NodeHash* = List[byte, 32] # MDigest[32 * 8] - sha256
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CodeHash* = List[byte, 32] # MDigest[32 * 8] - keccak256
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Address* = List[byte, 20]
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ContentKey* = object
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# TODO: How shall we deal with the different ContentKey structures?
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networkId: NetworkId
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contentType: ContentType
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address: Address
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triePath: ByteList
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nodeHash: NodeHash
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ContentId* = MDigest[32 * 8]
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template toSszType*(x: auto): auto =
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mixin toSszType
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when x is ContentType: uint8(x)
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else: x
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func toContentId*(contentKey: ContentKey): ContentId =
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sha2.sha_256.digest(SSZ.encode(contentKey))
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