eth2

package
v1.2.2 Latest Latest
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 Go to latest Published: Apr 7, 2024 License: GPL-3.0, GPL-3.0 Imports: 14 Imported by: 0

Documentation

Index

Constants

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const ABIJSON = "" /* 4616-byte string literal not displayed */
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const BLSPubkeyLength = 48
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const BeaconBlockBodyTreeExecutionPayloadIndex uint64 = 25
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const BeaconHeaderABIJSON = "" /* 459-byte string literal not displayed */
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const ChainIdABIJSON = "{\"internalType\":\"uint64\",\"type\":\"uint64\"}"
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const DomainByteLength = 4

DomainByteLength length of domain byte array.

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const EpochsPerSyncCommitteePeriod uint64 = 256
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const ExecutionPayloadProofSize int = 4
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const ExecutionProofSize = L1BeaconBlockBodyProofSize + L2ExecutionPayloadProofSize
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const FinalizedRootIndex uint32 = 105
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const ForkVersionByteLength = 4

ForkVersionByteLength length of fork version byte array.

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const L1BeaconBlockBodyProofSize uint64 = 4
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const L1BeaconBlockBodyTreeExecutionPayloadIndex uint64 = 25
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const L2ExecutionPayloadProofSize uint64 = 4
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const L2ExecutionPayloadTreeExecutionBlockIndex uint64 = 28
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const MinSyncCommitteeParticipants uint64 = 1
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const NextSyncCommitteeIndex uint32 = 55
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const SlotsPerEpoch uint64 = 32
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const SyncCommitteeABIJSON = "" /* 231-byte string literal not displayed */
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const UpdateABIJSON = "" /* 3200-byte string literal not displayed */

Variables

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var DomainSyncCommittee = [4]byte{0x07, 0x00, 0x00, 0x00}

Functions

func ComputeDomain 

func ComputeDomain(domainType [DomainByteLength]byte, forkVersion, genesisValidatorsRoot []byte) ([]byte, error)

ComputeDomain returns the domain version for BLS private key to sign and verify with a zeroed 4-byte array as the fork version.

def compute_domain(domain_type: DomainType, fork_version: Version=None, genesis_validators_root: Root=None) -> Domain: 

"""
Return the domain for the ``domain_type`` and ``fork_version``.
"""
if fork_version is None:
    fork_version = GENESIS_FORK_VERSION
if genesis_validators_root is None:
    genesis_validators_root = Root()  # all bytes zero by default
fork_data_root = compute_fork_data_root(fork_version, genesis_validators_root)
return Domain(domain_type + fork_data_root[:28])

func ComputeSigningRoot 

func ComputeSigningRoot(object fssz.HashRoot, domain []byte) ([32]byte, error)

ComputeSigningRoot computes the root of the object by calculating the hash tree root of the signing data with the given domain.

Spec pseudocode definition: 

	def compute_signing_root(ssz_object: SSZObject, domain: Domain) -> Root:
   """
   Return the signing root for the corresponding signing data.
   """
   return hash_tree_root(SigningData(
       object_root=hash_tree_root(ssz_object),
       domain=domain,
   ))

func PadTo 

func PadTo(b []byte, size int) []byte

PadTo pads a byte slice to the given size. If the byte slice is larger than the given size, the original slice is returned.

func ReverseByteOrder 

func ReverseByteOrder(input []byte) []byte

ReverseByteOrder Switch the endianness of a byte slice by reversing its order. this function does not modify the actual input bytes.

func SyncCommitteeRoot 

func SyncCommitteeRoot(committee *SyncCommittee) ([32]byte, error)

SyncCommitteeRoot computes the HashTreeRoot Merkleization of a committee root. a SyncCommitteeRoot struct according to the eth2 Simple Serialize specification.

func VerifyLightClientUpdate 

func VerifyLightClientUpdate(input []byte) error

Types

type BeaconBlockHeader 

type BeaconBlockHeader struct {
	Slot          uint64
	ProposerIndex ValidatorIndex
	ParentRoot    []byte
	StateRoot     []byte
	BodyRoot      []byte
}

func (*BeaconBlockHeader) HashTreeRoot 

func (b *BeaconBlockHeader) HashTreeRoot() ([32]byte, error)

HashTreeRoot ssz hashes the BeaconBlockHeader object

func (*BeaconBlockHeader) HashTreeRootWith 

func (b *BeaconBlockHeader) HashTreeRootWith(hh *ssz.Hasher) (err error)

HashTreeRootWith ssz hashes the BeaconBlockHeader object with a hasher

type DomainType 

type DomainType [4]byte

type ExecutionPayload 

type ExecutionPayload struct {
	ParentHash       common.Hash
	FeeRecipient     common.Address
	StateRoot        common.Hash
	ReceiptsRoot     common.Hash
	LogsBloom        []byte
	PrevRandao       common.Hash
	BlockNumber      *big.Int
	GasLimit         uint64
	GasUsed          uint64
	Timestamp        uint64
	ExtraData        []byte
	BaseFeePerGas    *big.Int
	BlockHash        common.Hash
	TransactionsRoot common.Hash
	WithdrawalsRoot  common.Hash
}

func (*ExecutionPayload) HashTreeRoot 

func (e *ExecutionPayload) HashTreeRoot() ([32]byte, error)

HashTreeRoot ssz hashes the ExecutionPayload object

func (*ExecutionPayload) HashTreeRootWith 

func (e *ExecutionPayload) HashTreeRootWith(hh *fssz.Hasher) (err error)

HashTreeRootWith ssz hashes the ExecutionPayload object with a hasher

type ForkData 

type ForkData struct {
	CurrentVersion        []byte
	GenesisValidatorsRoot []byte
}

func (*ForkData) HashTreeRoot 

func (f *ForkData) HashTreeRoot() ([32]byte, error)

HashTreeRoot ssz hashes the ForkData object

func (*ForkData) HashTreeRootWith 

func (f *ForkData) HashTreeRootWith(hh *ssz.Hasher) (err error)

type ForkVersion 

type ForkVersion [4]byte

type ILightClientUpdate 

type ILightClientUpdate interface {
	GetAttestedHeader() *BeaconBlockHeader
	GetNextSyncCommittee() *SyncCommittee
	GetNextSyncCommitteeBranch() [][]byte
	GetFinalizedHeader() *BeaconBlockHeader
	GetFinalityBranch() [][]byte
	GetSyncAggregate() *SyncAggregate
	GetSignatureSlot() uint64
}

type ILightNodeBeaconBlockHeader 

type ILightNodeBeaconBlockHeader struct {
	Slot          uint64
	ProposerIndex uint64
	ParentRoot    [32]byte
	StateRoot     [32]byte
	BodyRoot      [32]byte
}

ILightNodeBeaconBlockHeader is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeBlockHeader 

type ILightNodeBlockHeader struct {
	ParentHash       []byte
	Sha3Uncles       []byte
	Miner            common.Address
	StateRoot        []byte
	TransactionsRoot []byte
	ReceiptsRoot     []byte
	LogsBloom        []byte
	Difficulty       *big.Int
	Number           *big.Int
	GasLimit         *big.Int
	GasUsed          *big.Int
	Timestamp        *big.Int
	ExtraData        []byte
	MixHash          []byte
	Nonce            []byte
	BaseFeePerGas    *big.Int
}

ILightNodeBlockHeader is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeExecution 

type ILightNodeExecution struct {
	ParentHash       [32]byte
	FeeRecipient     common.Address
	StateRoot        [32]byte
	ReceiptsRoot     [32]byte
	LogsBloom        []byte
	PrevRandao       [32]byte
	BlockNumber      *big.Int
	GasLimit         *big.Int
	GasUsed          *big.Int
	Timestamp        *big.Int
	ExtraData        []byte
	BaseFeePerGas    *big.Int
	BlockHash        [32]byte
	TransactionsRoot [32]byte
	WithdrawalsRoot  [32]byte
}

ILightNodeExecution is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeLightClientState 

type ILightNodeLightClientState struct {
	FinalizedHeader      ILightNodeBeaconBlockHeader
	CurrentSyncCommittee ILightNodeSyncCommittee
	NextSyncCommittee    ILightNodeSyncCommittee
	ChainID              uint64
}

ILightNodeLightClientState is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeLightClientUpdateV1 

type ILightNodeLightClientUpdateV1 struct {
	AttestedHeader          ILightNodeBeaconBlockHeader
	NextSyncCommittee       ILightNodeSyncCommittee
	NextSyncCommitteeBranch [][32]byte
	FinalizedHeader         ILightNodeBeaconBlockHeader
	FinalityBranch          [][32]byte
	FinalizedExeHeader      ILightNodeBlockHeader
	ExeFinalityBranch       [][32]byte
	SyncAggregate           ILightNodeSyncAggregate
	SignatureSlot           uint64
}

ILightNodeLightClientUpdate is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeLightClientUpdateV2 

type ILightNodeLightClientUpdateV2 struct {
	AttestedHeader          ILightNodeBeaconBlockHeader
	NextSyncCommittee       ILightNodeSyncCommittee
	NextSyncCommitteeBranch [][32]byte
	FinalizedHeader         ILightNodeBeaconBlockHeader
	FinalityBranch          [][32]byte
	FinalizedExecution      ILightNodeExecution
	ExecutionBranch         [][32]byte
	SyncAggregate           ILightNodeSyncAggregate
	SignatureSlot           uint64
}

ILightNodeLightClientUpdateV2 is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeLightClientVerify 

type ILightNodeLightClientVerify struct {
	Update ILightNodeLightClientUpdateV1
	State  ILightNodeLightClientState
}

ILightNodeLightClientVerify is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeSyncAggregate 

type ILightNodeSyncAggregate struct {
	SyncCommitteeBits      []byte
	SyncCommitteeSignature []byte
}

ILightNodeSyncAggregate is an auto generated low-level Go binding around an user-defined struct.

type ILightNodeSyncCommittee 

type ILightNodeSyncCommittee struct {
	Pubkeys         []byte
	AggregatePubkey []byte
}

ILightNodeSyncCommittee is an auto generated low-level Go binding around an user-defined struct.

type LightClientState 

type LightClientState struct {
	// contains filtered or unexported fields
}

func ConvertToLightClientState 

func ConvertToLightClientState(
	finalizedBeaconHeader *ILightNodeBeaconBlockHeader,
	curSyncCommittee *ILightNodeSyncCommittee,
	nextSyncCommittee *ILightNodeSyncCommittee,
	chainId uint64) *LightClientState

type LightClientUpdateV1 

type LightClientUpdateV1 struct {
	// contains filtered or unexported fields
}

func (LightClientUpdateV1) GetAttestedHeader 

func (l LightClientUpdateV1) GetAttestedHeader() *BeaconBlockHeader

func (LightClientUpdateV1) GetFinalityBranch 

func (l LightClientUpdateV1) GetFinalityBranch() [][]byte

func (LightClientUpdateV1) GetFinalizedHeader 

func (l LightClientUpdateV1) GetFinalizedHeader() *BeaconBlockHeader

func (LightClientUpdateV1) GetNextSyncCommittee 

func (l LightClientUpdateV1) GetNextSyncCommittee() *SyncCommittee

func (LightClientUpdateV1) GetNextSyncCommitteeBranch 

func (l LightClientUpdateV1) GetNextSyncCommitteeBranch() [][]byte

func (LightClientUpdateV1) GetSignatureSlot 

func (l LightClientUpdateV1) GetSignatureSlot() uint64

func (LightClientUpdateV1) GetSyncAggregate 

func (l LightClientUpdateV1) GetSyncAggregate() *SyncAggregate

type LightClientUpdateV2 

type LightClientUpdateV2 struct {
	// contains filtered or unexported fields
}

func (LightClientUpdateV2) GetAttestedHeader 

func (l LightClientUpdateV2) GetAttestedHeader() *BeaconBlockHeader

func (LightClientUpdateV2) GetFinalityBranch 

func (l LightClientUpdateV2) GetFinalityBranch() [][]byte

func (LightClientUpdateV2) GetFinalizedHeader 

func (l LightClientUpdateV2) GetFinalizedHeader() *BeaconBlockHeader

func (LightClientUpdateV2) GetNextSyncCommittee 

func (l LightClientUpdateV2) GetNextSyncCommittee() *SyncCommittee

func (LightClientUpdateV2) GetNextSyncCommitteeBranch 

func (l LightClientUpdateV2) GetNextSyncCommitteeBranch() [][]byte

func (LightClientUpdateV2) GetSignatureSlot 

func (l LightClientUpdateV2) GetSignatureSlot() uint64

func (LightClientUpdateV2) GetSyncAggregate 

func (l LightClientUpdateV2) GetSyncAggregate() *SyncAggregate

type LightClientVerify 

type LightClientVerify struct {
	// contains filtered or unexported fields
}

func ConvertToLightClientVerify 

func ConvertToLightClientVerify(update *ILightNodeLightClientUpdateV2,
	finalizedBeaconHeader *ILightNodeBeaconBlockHeader,
	curSyncCommittee *ILightNodeSyncCommittee,
	nextSyncCommittee *ILightNodeSyncCommittee,
	chainId uint64) *LightClientVerify

type NetworkConfig 

type NetworkConfig struct {
	GenesisValidatorsRoot [32]byte
	BellatrixForkVersion  ForkVersion
	BellatrixForkEpoch    uint64
	CapellaForkVersion    ForkVersion
	CapellaForkEpoch      uint64
}

type Root 

type Root []byte

type SigningData 

type SigningData struct {
	ObjectRoot []byte `protobuf:"bytes,1,opt,name=object_root,json=objectRoot,proto3" json:"object_root,omitempty" ssz-size:"32"`
	Domain     []byte `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty" ssz-size:"32"`
	// contains filtered or unexported fields
}

func (*SigningData) HashTreeRoot 

func (s *SigningData) HashTreeRoot() ([32]byte, error)

HashTreeRoot ssz hashes the SigningData object

func (*SigningData) HashTreeRootWith 

func (s *SigningData) HashTreeRootWith(hh *ssz.Hasher) (err error)

HashTreeRootWith ssz hashes the SigningData object with a hasher

type SyncAggregate 

type SyncAggregate struct {
	SyncCommitteeBits      bitfield.Bitvector512
	SyncCommitteeSignature []byte
}

type SyncCommittee 

type SyncCommittee struct {
	Pubkeys         [][]byte
	AggregatePubkey []byte
}

type ValidatorIndex 

type ValidatorIndex uint64

Source Files

View all Source files

Directories

Path Synopsis
Package bls implements a go-wrapper around a library implementing the the BLS12-381 curve and signature scheme.
 Package bls implements a go-wrapper around a library implementing the the BLS12-381 curve and signature scheme.
blst
Package blst implements a go-wrapper around a library implementing the the BLS12-381 curve and signature scheme.
 Package blst implements a go-wrapper around a library implementing the the BLS12-381 curve and signature scheme.
common
Package common provides the BLS interfaces that are implemented by the various BLS wrappers.
 Package common provides the BLS interfaces that are implemented by the various BLS wrappers.
herumi
Package hashutil includes all hash-function related helpers for Prysm.
 Package hashutil includes all hash-function related helpers for Prysm.
htr
Package rand defines methods of obtaining random number generators.
 Package rand defines methods of obtaining random number generators.
Package ssz defines HashTreeRoot utility functions.
 Package ssz defines HashTreeRoot utility functions.

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