core

package
v0.5.0 Latest Latest
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 Go to latest Published: Jul 25, 2018 License: Apache-2.0 Imports: 22 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func GetSignedData 

func GetSignedData(privKey ecdsa.PrivateKey, dataToSign *TxPreSignature) []byte

func HashPubKey 

func HashPubKey(pubKey []byte) []byte

HashPubKey hashes public key

func ValidateAddress 

func ValidateAddress(address string) bool

ValidateAddress check if address if valid

Types

type Block 

type Block struct {
	Timestamp int64

	Transactions []*Tx

	PrevBlockHash []byte
	Hash          []byte
	Nonce         int64
	Height        int
}

func DeserializeBlock 

func DeserializeBlock(d []byte) *Block

func NewBlock 

func NewBlock(transactions []*Tx, prevBlockHash []byte, height int) *Block

func NewGenesisBlock 

func NewGenesisBlock(coinbase *Tx) *Block

func (*Block) HashTransactions 

func (block *Block) HashTransactions() []byte

func (*Block) Serialize 

func (block *Block) Serialize() []byte

type Blockchain 

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

func CreateBlockchain 

func CreateBlockchain(address, nodeId string) *Blockchain

func NewBlockchain 

func NewBlockchain(nodeID string) *Blockchain

func (*Blockchain) AddBlock 

func (bc *Blockchain) AddBlock(block *Block)

func (*Blockchain) FindTransaction 

func (bc *Blockchain) FindTransaction(ID []byte) (Tx, error)

FindTransaction finds a transaction by its ID

func (*Blockchain) FindUTXO 

func (bc *Blockchain) FindUTXO() map[string]TxOutputs

FindUTXO finds all unspent transaction outputs and returns transactions with spent outputs removed

func (*Blockchain) Iterator 

func (bc *Blockchain) Iterator() *BlockchainIterator

Iterator returns a BlockchainIterat

type BlockchainIterator 

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

BlockchainIterator is used to iterate over blockchain blocks

func (*BlockchainIterator) Next 

func (i *BlockchainIterator) Next() *Block

Next returns next block starting from the tip

type CLI 

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

func NewCLI 

func NewCLI(bc *Blockchain) *CLI

func (*CLI) Run 

func (cli *CLI) Run()

type ProofOfWork 

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

func NewProofOfWork 

func NewProofOfWork(b *Block) *ProofOfWork

func (*ProofOfWork) PrepareData 

func (pow *ProofOfWork) PrepareData(nonce int64) []byte

func (*ProofOfWork) Run 

func (pow *ProofOfWork) Run() (int64, []byte)

func (*ProofOfWork) Validate 

func (pow *ProofOfWork) Validate() bool

type Transaction 

type Transaction struct {
	ID     []byte
	Input  []TxInput
	Output []TxOutput
}

func CoinbaseTx 

func CoinbaseTx(to string, data string) *Transaction

type Tx 

type Tx struct {
	Id      []byte
	Inputs  []TxInput
	Outputs []TxOutput
}

func DeserializeTx 

func DeserializeTx(data []byte) Tx

func NewCoinbaseTx 

func NewCoinbaseTx(to, data string) *Tx

func NewUTXOTransaction 

func NewUTXOTransaction(wallet *Wallet, to string, amount int, utxoSet *UTXOSet) *Tx

func (*Tx) Clone 

func (tx *Tx) Clone() Tx

func (*Tx) Hash 

func (tx *Tx) Hash() []byte

func (*Tx) IsCoinbase 

func (tx *Tx) IsCoinbase() bool

func (*Tx) Serialize 

func (tx *Tx) Serialize() []byte

func (*Tx) Sign 

func (tx *Tx) Sign(privKey ecdsa.PrivateKey, prevTxMap map[string]Tx)

func (*Tx) String 

func (tx *Tx) String() string

func (*Tx) Verify 

func (tx *Tx) Verify(prevTxMap map[string]Tx) bool

type TxInput 

type TxInput struct {
	Id          []byte
	OutputIndex int
	Signature   []byte
	PubKey      []byte
}

type TxOutput 

type TxOutput struct {
	Value      int
	PubKeyHash []byte
}

func NewTxOutput 

func NewTxOutput(value int, address string) *TxOutput

func (*TxOutput) AssignPubKeyHash 

func (out *TxOutput) AssignPubKeyHash(address []byte)

func (*TxOutput) VerifyTxOutput 

func (out *TxOutput) VerifyTxOutput(pubKeyHash []byte) bool

type TxOutputs 

type TxOutputs struct {
	Outputs []TxOutput
}

TXOutputs collects TXOutput

type TxPreSignature 

type TxPreSignature struct {
	TxId          []byte
	TxOutputIndex int
	PubKey        []byte
}

func NewPreSignature 

func NewPreSignature(currentTx *Tx, prevTxMap map[string]Tx, currentInput *TxInput) TxPreSignature

type UTXOSet 

type UTXOSet struct {
	Blockchain *Blockchain
}

type Wallet 

type Wallet struct {
	PrivateKey ecdsa.PrivateKey
	PublicKey  []byte
}

Wallet stores private and public keys

func NewWallet 

func NewWallet() *Wallet

NewWallet creates and returns a Wallet

func (Wallet) GetAddress 

func (w Wallet) GetAddress() []byte

GetAddress returns wallet address

type Wallets 

type Wallets struct {
	Wallets map[string]*Wallet
}

Wallets stores a collection of wallets

func NewWallets 

func NewWallets(nodeID string) (*Wallets, error)

NewWallets creates Wallets and fills it from a file if it exists

func (*Wallets) CreateWallet 

func (ws *Wallets) CreateWallet() string

CreateWallet adds a Wallet to Wallets

func (*Wallets) GetAddresses 

func (ws *Wallets) GetAddresses() []string

GetAddresses returns an array of addresses stored in the wallet file

func (Wallets) GetWallet 

func (ws Wallets) GetWallet(address string) Wallet

GetWallet returns a Wallet by its address

func (*Wallets) LoadFromFile 

func (ws *Wallets) LoadFromFile(nodeID string) error

LoadFromFile loads wallets from the file

func (Wallets) SaveToFile 

func (ws Wallets) SaveToFile(nodeID string)

SaveToFile saves wallets to a file

Source Files

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