core

package
v0.0.0-...-bff8ceb Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: May 3, 2022 License: GPL-3.0 Imports: 19 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	AddressChecksumLen = 4
	Version            = byte(0x00)
)

Variables

This section is empty.

Functions

func Checksum 

func Checksum(pubKeyHash []byte) []byte

func DBExists 

func DBExists(dbFile string) bool

func HashPubKey 

func HashPubKey(pub []byte) ([]byte, error)

func IntToBytes 

func IntToBytes(num int64) ([]byte, error)

func ValidateAddress 

func ValidateAddress(address string) bool

Types

type Block 

type Block struct {
	Timestamp     int64          `json:"timestamp"`
	Nonce         uint64         `json:"nonce"`
	PrevBlockHash []byte         `json:"prev_block_hash"`
	Hash          []byte         `json:"hash"`
	Transactions  []*Transaction `json:"transactions"`
}

func DeserializeBlock 

func DeserializeBlock(encData []byte) (Block, error)

func NewBlock 

func NewBlock(txs []*Transaction, prevBlockHash []byte) (Block, error)

func NewGenesisBlock 

func NewGenesisBlock(cbtx Transaction) (Block, error)

func (*Block) HashTXs 

func (b *Block) HashTXs() ([]byte, error)

func (Block) Serialize 

func (b Block) Serialize() ([]byte, error)

type Blockchain 

type Blockchain struct {
	Tip []byte
	DB  *bolt.DB
}

func CreateBlockchain 

func CreateBlockchain(address, dbFile string) (Blockchain, error)

func NewBlockchain 

func NewBlockchain(dbFile string) (Blockchain, error)

func (*Blockchain) AddToPool 

func (bc *Blockchain) AddToPool(tx Transaction) error

func (*Blockchain) FindTXByID 

func (bc *Blockchain) FindTXByID(ID []byte) (Transaction, error)

func (*Blockchain) FindUTXOsWithIDX 

func (chain *Blockchain) FindUTXOsWithIDX() (map[string]map[int]TXOutput, error)

scan the entire blockchain and find all UTXOs

func (*Blockchain) FindUXTOs 

func (chain *Blockchain) FindUXTOs() (map[string]TXOutputs, error)

func (*Blockchain) GetBlockHeight 

func (bc *Blockchain) GetBlockHeight() (uint64, error)

func (*Blockchain) Iterator 

func (bc *Blockchain) Iterator() *Iterator

func (*Blockchain) MineBlock 

func (bc *Blockchain) MineBlock(txs []*Transaction) (Block, error)

func (*Blockchain) SignTX 

func (bc *Blockchain) SignTX(tx Transaction, privKey ecdsa.PrivateKey) error

func (*Blockchain) VerifyTX 

func (bc *Blockchain) VerifyTX(tx Transaction) (bool, error)

type Iterator 

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

func (*Iterator) Next 

func (i *Iterator) Next() (*Block, error)

type MerkleNode 

type MerkleNode struct {
	Left  *MerkleNode
	Right *MerkleNode
	Data  []byte
}

type MerkleTree 

type MerkleTree struct {
	Root *MerkleNode
}

func NewMerkleTree 

func NewMerkleTree(data [][]byte) *MerkleTree

type PoW 

type PoW struct {
	Block  *Block
	Target *big.Int
}

func NewPoW 

func NewPoW(b *Block) *PoW

func (*PoW) PrepareData 

func (pow *PoW) PrepareData(nonce uint64) ([]byte, error)

func (*PoW) Run 

func (pow *PoW) Run() ([]byte, uint64, error)

func (*PoW) Validate 

func (pow *PoW) Validate() (bool, error)

type TXInput 

type TXInput struct {
	TxID      []byte `json:"txid"`
	Out       int    `json:"out"`
	PublicKey []byte `json:"public_key"`
	Signature []byte `json:"signature"`
}

func (TXInput) UsesKey 

func (in TXInput) UsesKey(pubKeyHash []byte) (bool, error)

check whether the address initiated the transaction

type TXOutput 

type TXOutput struct {
	Value      uint   `json:"value"`
	PubkeyHash []byte `json:"public_key_hash"`
}

func NewTXOutput 

func NewTXOutput(value uint, address string) TXOutput

create a new TXOutput

func (TXOutput) IsLockedWith 

func (out TXOutput) IsLockedWith(pubKeyHash []byte) bool

check if the output can be unlocked

func (*TXOutput) Lock 

func (out *TXOutput) Lock(address string) error

sign the output

type TXOutputs 

type TXOutputs struct {
	Outputs []TXOutput
}

func DeserializeOutputs 

func DeserializeOutputs(encData []byte) (TXOutputs, error)

func (TXOutputs) Serialize 

func (outs TXOutputs) Serialize() ([]byte, error)

type Transaction 

type Transaction struct {
	ID      []byte     `json:"id"`
	Inputs  []TXInput  `json:"inputs"`
	Outputs []TXOutput `json:"outputs"`
	Msg     string     `json:"msg"`
}

func DeserializeTX 

func DeserializeTX(data []byte) (Transaction, error)

func NewCBTX 

func NewCBTX(address, data string) (Transaction, error)

func NewUTXOTransaction 

func NewUTXOTransaction(receiver, sender string, senderPubKey []byte, amount uint, UTXOSet *UTXOSet, msg string) (Transaction, error)

func (Transaction) Hash 

func (tx Transaction) Hash() ([]byte, error)

func (Transaction) IsCoinbase 

func (tx Transaction) IsCoinbase() bool

func (Transaction) Serialize 

func (tx Transaction) Serialize() ([]byte, error)

func (*Transaction) Sign 

func (tx *Transaction) Sign(privKey ecdsa.PrivateKey, prevTXs map[string]Transaction) error

func (Transaction) TrimmedCopy 

func (tx Transaction) TrimmedCopy() Transaction

func (*Transaction) Verify 

func (tx *Transaction) Verify(prevTXs map[string]Transaction) (bool, error)

type UTXOSet 

type UTXOSet struct {
	Blockchain *Blockchain
}

func (*UTXOSet) FindSpendableOutputs 

func (u *UTXOSet) FindSpendableOutputs(pubkeyHash []byte, amount uint) (uint, map[string][]int, error)

func (*UTXOSet) FindUTXOs 

func (u *UTXOSet) FindUTXOs(pubkeyHash []byte) ([]TXOutput, error)

func (UTXOSet) Reindex 

func (u UTXOSet) Reindex() error

func (UTXOSet) Update 

func (u UTXOSet) Update(block *Block) error

type Wallet 

type Wallet struct {
	PrivKey ecdsa.PrivateKey
	PubKey  []byte
}

func NewWallet 

func NewWallet() (Wallet, error)

func (*Wallet) DecodePrivKeys 

func (w *Wallet) DecodePrivKeys(encPrivKey string) error

func (*Wallet) DecodePubKeys 

func (w *Wallet) DecodePubKeys(encPubKey string) error

func (Wallet) EncodePrivKeys 

func (w Wallet) EncodePrivKeys() (string, error)

func (Wallet) EncodePubKeys 

func (w Wallet) EncodePubKeys() string

func (Wallet) GetAddress 

func (w Wallet) GetAddress() (string, error)

Source Files

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