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共识算法 POW

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POW算法：节点根据一定规则产生HASH数据，系统设置prefixToMatch，根据不同难度需求调整prefixToMatch

Documentation

Index

• Constants
• func CheckProofOfWork(prefixToMatch []byte, hash []byte) bool
• func GetCompact(b *big.Int) uint32
• func GetDifficulty(bits uint32) (diff float64)
• func POWCheckProofOfWork(hash *Uint256, bits uint32) bool
• func Rimp160AfterSha256(b []byte) (out [20]byte)
• func RimpHash(in []byte, out []byte)
• func SetCompact(nCompact uint32) (res *big.Int)
• func Sha2Sum(b []byte) (out [32]byte)
• func ShaHash(b []byte, out []byte)
• type Uint256
  • func NewSha2Hash(data []byte) (res *Uint256)
  • func NewUint256(h []byte) (res *Uint256)
  • func NewUint256FromString(s string) (res *Uint256)
  • func (u *Uint256) BIdx() (o [Uint256IdxLen]byte)
  • func (u *Uint256) BigInt() *big.Int
  • func (u *Uint256) Bytes() []byte
  • func (u *Uint256) Equal(o *Uint256) bool
  • func (u *Uint256) String() (s string)

Constants

const Uint256IdxLen = 8 // The bigger it is, the more memory is needed, but lower chance of a collision

Functions

func CheckProofOfWork

func CheckProofOfWork(prefixToMatch []byte, hash []byte) bool

CheckProofOfWork 确认POW是否匹配

func GetCompact

func GetCompact(b *big.Int) uint32

func GetDifficulty

func GetDifficulty(bits uint32) (diff float64)

func POWCheckProofOfWork

func POWCheckProofOfWork(hash *Uint256, bits uint32) bool

func Rimp160AfterSha256

func Rimp160AfterSha256(b []byte) (out [20]byte)

Returns hash: RIMP160( SHA256( data ) ) Where possible, using RimpHash() should be a bit faster

func RimpHash

func RimpHash(in []byte, out []byte)

func SetCompact

func SetCompact(nCompact uint32) (res *big.Int)

func Sha2Sum

func Sha2Sum(b []byte) (out [32]byte)

Returns hash: SHA256( SHA256( data ) ) Where possible, using ShaHash() should be a bit faster

func ShaHash

func ShaHash(b []byte, out []byte)

Types

type Uint256

type Uint256 struct {
	Hash [32]byte
}

func NewSha2Hash

func NewSha2Hash(data []byte) (res *Uint256)

func NewUint256

func NewUint256(h []byte) (res *Uint256)

func NewUint256FromString

func NewUint256FromString(s string) (res *Uint256)

Get from MSB hexstring

func (*Uint256) BIdx

func (u *Uint256) BIdx() (o [Uint256IdxLen]byte)

func (*Uint256) BigInt

func (u *Uint256) BigInt() *big.Int

func (*Uint256) Bytes

func (u *Uint256) Bytes() []byte

func (*Uint256) Equal

func (u *Uint256) Equal(o *Uint256) bool

func (*Uint256) String

func (u *Uint256) String() (s string)