crypto

package

v1.1.0 Latest Latest Go to latest Published: Mar 19, 2024 License: MIT Imports: 12 Imported by: 0

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Repository

github.com/chain-lab/go-chronos

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Documentation ¶

Index ¶

Constants
func BigPow(a, b int64) *big.Int
func Bytes2PublicKey(pub []byte) *ecdsa.PublicKey
func CalculatorInitialization(pp *big.Int, order *big.Int, t int64)
func DecodePrivateKeyFromHexString(hexString string) (*ecdsa.PrivateKey, error)
func GenerateGenesisParams() (*common.GenesisParams, error)
func GenerateParams() (*big.Int, *big.Int, error)
func PublicKey2Bytes(pub *ecdsa.PublicKey) []byte
func PublicKeyBytes2Address(pubBytes [33]byte) [20]byte
func VRFCalculate(curve elliptic.Curve, msg []byte) ([]byte, *big.Int, *big.Int, error)
func VRFCheckLocalConsensus(vdfOutput []byte) (bool, error)
func VRFCheckOutputConsensus(randomOutput []byte, local bool) bool
func VRFCheckRemoteConsensus(key *ecdsa.PublicKey, vdfMsg []byte, s *big.Int, t *big.Int, value []byte) (bool, error)
func VRFVerify(curve elliptic.Curve, key *ecdsa.PublicKey, msg []byte, s *big.Int, t *big.Int, ...) (bool, error)
type Calculator
- func GetCalculatorInstance() *Calculator

Constants ¶

View Source

const (
	// todo: 作为参数写入到创世区块
	ConsensusFloor = 0.0 // 共识要求的最低概率
)

Variables ¶

This section is empty.

Functions ¶

func BigPow ¶

func BigPow(a, b int64) *big.Int

BigPow 返回 a^b

func Bytes2PublicKey ¶

func Bytes2PublicKey(pub []byte) *ecdsa.PublicKey

func CalculatorInitialization ¶

func CalculatorInitialization(pp *big.Int, order *big.Int, t int64)

func DecodePrivateKeyFromHexString ¶

func DecodePrivateKeyFromHexString(hexString string) (*ecdsa.PrivateKey,
	error)

func GenerateGenesisParams ¶

func GenerateGenesisParams() (*common.GenesisParams, error)

GenerateGenesisParams 打包 VDF 计算参数

func GenerateParams ¶

func GenerateParams() (*big.Int, *big.Int, error)

GenerateParams 用于生成计算参数，返回 order(n), proof_param

func PublicKey2Bytes ¶

func PublicKey2Bytes(pub *ecdsa.PublicKey) []byte

func PublicKeyBytes2Address ¶

func PublicKeyBytes2Address(pubBytes [33]byte) [20]byte

func VRFCalculate ¶

func VRFCalculate(curve elliptic.Curve, msg []byte) ([]byte, *big.Int, *big.Int, error)

func VRFCheckLocalConsensus ¶

func VRFCheckLocalConsensus(vdfOutput []byte) (bool, error)

VRFCheckLocalConsensus 检查当前节点是否是一个共识节点

func VRFCheckOutputConsensus ¶

func VRFCheckOutputConsensus(randomOutput []byte, local bool) bool

VRFCheckOutputConsensus 检查一个 VRF 的输出是否满足共识

func VRFCheckRemoteConsensus ¶

func VRFCheckRemoteConsensus(key *ecdsa.PublicKey, vdfMsg []byte, s *big.Int, t *big.Int, value []byte) (bool, error)

VRFCheckRemoteConsensus 检查一个其他节点的输出是否满足共识条件

func VRFVerify ¶

func VRFVerify(curve elliptic.Curve, key *ecdsa.PublicKey, msg []byte, s *big.Int, t *big.Int, value []byte) (bool, error)

Types ¶

type Calculator ¶

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

func GetCalculatorInstance ¶

func GetCalculatorInstance() *Calculator

GetCalculatorInstance 所有的对 VDF 计算类的操作必须从这里获取实例

func (*Calculator) AppendNewSeed ¶

func (c *Calculator) AppendNewSeed(seed *big.Int, proof *big.Int)

AppendNewSeed 在计算运行时修改此时的运行参数

func (*Calculator) GetSeedParams ¶

func (c *Calculator) GetSeedParams(bufferFull bool) (*big.Int, *big.Int)

GetSeedParams 读取计算信息，如果channel中有数据则优先获取

func (*Calculator) Verify ¶

func (c *Calculator) Verify(seed *big.Int, pi *big.Int, result *big.Int) bool

Verify 验证 VDF 计算结果 result == pi^l * seed^s 具体细节见论文 - Simple Verifiable Delay Functions

func (*Calculator) VerifyBlockVDF ¶

func (c *Calculator) VerifyBlockVDF(seed *big.Int, proof *big.Int) bool

Source Files ¶

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