core

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: 18 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ByteToFloat64 

func ByteToFloat64(bytes []byte) float64

func BytesToHash 

func BytesToHash(b []byte) common.Hash

func GetNodeFromLeaf 

func GetNodeFromLeaf(ln uint64) uint64

func HashToF64 

func HashToF64(x common.Hash) float64

extract bits from the hash value to generate an f64 value this is used for extracting randomness from hash values https://news.ycombinator.com/item?id=9207874 http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/ARTICLES/dSFMT.pdf

func IsPowerOfTwo 

func IsPowerOfTwo(n uint64) bool

func MapVerify 

func MapVerify(proof []byte, txHash common.Hash) error

func NextPowerOfTwo 

func NextPowerOfTwo(n uint64) uint64

func ProofInfoToBytes 

func ProofInfoToBytes(info *ProofInfo) ([]byte, error)

func RlpHash 

func RlpHash(x interface{}) (h common.Hash)

func SortAndRemoveRepeatForBlocks 

func SortAndRemoveRepeatForBlocks(slc []uint64) []uint64

////////////////////////////////////////////////////////////////

func Uint64ToBytes 

func Uint64ToBytes(i uint64) []byte

Types

type ChainAdapter 

type ChainAdapter struct {
	Genesis      common.Hash
	ConfirmBlock *types.Header
	ProofHeader  *types.Header
	Latest       []*types.Header
}

func (*ChainAdapter) Copy 

func (o *ChainAdapter) Copy() *ChainAdapter

func (*ChainAdapter) GenesisCheck 

func (o *ChainAdapter) GenesisCheck(head *types.Header) error

type ChainHeaderProof 

type ChainHeaderProof struct {
	Proof  *ProofInfo // the leatest blockchain and an proof of existence
	Header []*types.Header
	Right  *big.Int
}

func (*ChainHeaderProof) Data 

func (b *ChainHeaderProof) Data() ([]byte, error)

type ChainInfoProof 

type ChainInfoProof struct {
	Proof  *ProofInfo
	Header []*types.Header
}

type ChainProofs 

type ChainProofs struct {
	Remote      *ChainAdapter `json:"remote"     rlp:"nil"`
	HeaderProof *ChainHeaderProof
	InfoProof   *ChainInfoProof
}

func NewChainProofs 

func NewChainProofs() *ChainProofs

func (*ChainProofs) Data 

func (cps *ChainProofs) Data() ([]byte, error)

func (*ChainProofs) Verify 

func (cps *ChainProofs) Verify() error

type MapProofs 

type MapProofs struct {
	ChainProof   *ChainProofs
	ReceiptProof *ReceiptProof
	End          *big.Int
	Header       *types.Header
	Result       bool
	TxHash       common.Hash
}

newBlockData is the network packet for the block propagation message.

func (*MapProofs) VerifyMapTransaction 

func (mr *MapProofs) VerifyMapTransaction(txHash common.Hash) (*types.Receipt, error)

type MapTransaction 

type MapTransaction struct {
	SimpUlvpP *MapProofs
	Tx        *types.Transaction
}

UlvpTransaction is the network packet for the block propagation message.

type Mmr 

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

func NewMMR 

func NewMMR() *Mmr

func (*Mmr) Copy 

func (m *Mmr) Copy() *Mmr

func (*Mmr) CreateNewProof 

func (m *Mmr) CreateNewProof(right_difficulty *big.Int) (*ProofInfo, []uint64, []uint64)

func (*Mmr) GenerateProof 

func (m *Mmr) GenerateProof(proofHeight, EndHeight uint64) *ProofInfo

func (*Mmr) GenerateProof2 

func (m *Mmr) GenerateProof2(proofHeight, EndHeight uint64) *ProofInfo

func (*Mmr) GetRoot2 

func (m *Mmr) GetRoot2() common.Hash

func (*Mmr) Pop2 

func (m *Mmr) Pop2() *Node

func (*Mmr) Push 

func (m *Mmr) Push(newElem *Node)

type Node 

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

func NewNode 

func NewNode(v common.Hash, d, ds, de *big.Int, timeCost uint64) *Node

func (*Node) GetHash 

func (n *Node) GetHash() common.Hash

func (*Node) String 

func (n *Node) String() string

type NodeList 

type NodeList []rlp.RawValue

NodeList stores an ordered list of trie nodes. It implements mosdb.KeyValueWriter.

func (NodeList) DataSize 

func (n NodeList) DataSize() int

DataSize returns the aggregated data size of nodes in the list

func (*NodeList) Delete 

func (n *NodeList) Delete(key []byte) error

Delete panics as there's no reason to remove a node from the list.

func (NodeList) NodeSet 

func (n NodeList) NodeSet() *NodeSet

NodeSet converts the node list to a NodeSet

func (*NodeList) Put 

func (n *NodeList) Put(key []byte, value []byte) error

Put stores a new node at the end of the list

func (NodeList) Store 

func (n NodeList) Store(db ethdb.KeyValueWriter)

Store writes the contents of the list to the given database

type NodeSet 

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

NodeSet stores a set of trie nodes. It implements trie.Database and can also act as a cache for another trie.Database.

func NewNodeSet 

func NewNodeSet() *NodeSet

NewNodeSet creates an empty node set

func (*NodeSet) DataSize 

func (db *NodeSet) DataSize() int

DataSize returns the aggregated data size of nodes in the set

func (*NodeSet) Delete 

func (db *NodeSet) Delete(key []byte) error

Delete removes a node from the set

func (*NodeSet) Get 

func (db *NodeSet) Get(key []byte) ([]byte, error)

Get returns a stored node

func (*NodeSet) Has 

func (db *NodeSet) Has(key []byte) (bool, error)

Has returns true if the node set contains the given key

func (*NodeSet) KeyCount 

func (db *NodeSet) KeyCount() int

KeyCount returns the number of nodes in the set

func (*NodeSet) NodeList 

func (db *NodeSet) NodeList() NodeList

NodeList converts the node set to a NodeList

func (*NodeSet) Put 

func (db *NodeSet) Put(key []byte, value []byte) error

Put stores a new node in the set

func (*NodeSet) Store 

func (db *NodeSet) Store(target ethdb.KeyValueWriter)

Store writes the contents of the set to the given database

type ProofBlock 

type ProofBlock struct {
	Number     uint64
	AggrWeight float64
}

func SortAndRemoveRepeatForProofBlocks 

func SortAndRemoveRepeatForProofBlocks(slc []*ProofBlock) []*ProofBlock

func VerifyRequiredBlocks 

func VerifyRequiredBlocks(info *ProofInfo, right_difficulty *big.Int) ([]*ProofBlock, error)

func VerifyRequiredBlocks2 

func VerifyRequiredBlocks2(info *ProofInfo) ([]*ProofBlock, error)

type ProofBlocks 

type ProofBlocks []*ProofBlock

func (ProofBlocks) Len 

func (a ProofBlocks) Len() int

func (ProofBlocks) Less 

func (a ProofBlocks) Less(i, j int) bool

func (ProofBlocks) Swap 

func (a ProofBlocks) Swap(i, j int)

type ProofElem 

type ProofElem struct {
	Cat     uint8 // 0--root,1--node,2 --child
	Res     *ProofRes
	Right   bool
	LeafNum uint64
}

func (*ProofElem) String 

func (p *ProofElem) String() string

type ProofElems 

type ProofElems []*ProofElem

type ProofInfo 

type ProofInfo struct {
	RootHash       common.Hash
	RootDifficulty *big.Int
	LeafNumber     uint64
	Elems          []*ProofElem
	Checked        []uint64
}

func ProofInfoFromBytes 

func ProofInfoFromBytes(data []byte) (*ProofInfo, error)

func (*ProofInfo) String 

func (p *ProofInfo) String() string

func (*ProofInfo) VerifyProof 

func (p *ProofInfo) VerifyProof(blocks []*ProofBlock) bool

func (*ProofInfo) VerifyProof2 

func (p *ProofInfo) VerifyProof2(blocks []*ProofBlock) bool

type ProofRes 

type ProofRes struct {
	H  common.Hash
	TD *big.Int
}

///////////////////////////////////////////////////////////////////////////////

func (*ProofRes) String 

func (r *ProofRes) String() string

type ReceiptProof 

type ReceiptProof struct {
	Proofs      NodeList
	Index       uint64
	ReceiptHash common.Hash
}

func (*ReceiptProof) Verify 

func (r *ReceiptProof) Verify() (*types.Receipt, error)

type VerifyElem 

type VerifyElem struct {
	Res        *ProofRes
	Index      uint64
	LeafNumber uint64
}

type VerifyElems 

type VerifyElems []*VerifyElem

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