tebn254

Documentation

Index

• Constants
• Variables
• func IsInSubGroup(p *Point) bool
• func IsZero(p *Point) bool
• func RandomValue() *big.Int
• func ToBytes(p *Point) []byte
• func ToString(p *Point) string
• func VecToBytes(vp []*Point) ([]byte, error)
• type Point
  • func Add(a, b *Point) *Point
  • func FromBytes(pBytes []byte) (*Point, error)
  • func FromString(pStr string) (*Point, error)
  • func MapToGroup(seed string) (H *Point, err error)
  • func Neg(a *Point) *Point
  • func ScalarBaseMul(a *big.Int) *Point
  • func ScalarMul(p *Point, a *big.Int) *Point
  • func ZeroPoint() *Point
• type PrivateKey
  • func GenerateEddsaPrivateKey(seed string) (sk *PrivateKey, err error)
  • func GenerateKey(r io.Reader) (*PrivateKey, error)
• type PublicKey

Constants

const (
	SeedH     = "ZkBNBTwistedEdwardsBn254HSeed"
	SeedU     = "ZkBNBTwistedEdwardsBn254USeed"
	PointSize = 32
)

Variables

var (
	ErrMapToGroup       = errors.New("Failed to Hash-to-point.")
	ErrInvalidPointSize = errors.New("err: invalid point size")
)

var (
	Order   = &curve.Order
	G       = &curve.Base
	Modulus = fr.Modulus()
	H       *Point
	U       *Point
	O       = Point{X: *new(fr.Element).SetZero(), Y: *new(fr.Element).SetOne()}
)

Functions

func IsInSubGroup

func IsInSubGroup(p *Point) bool

func IsZero

func IsZero(p *Point) bool

func RandomValue

func RandomValue() *big.Int

func ToBytes

func ToBytes(p *Point) []byte

func ToString

func ToString(p *Point) string

func VecToBytes

func VecToBytes(vp []*Point) ([]byte, error)

Types

type Point

type Point = twistededwards.PointAffine

func Add

func Add(a, b *Point) *Point

func FromBytes

func FromBytes(pBytes []byte) (*Point, error)

func FromString

func FromString(pStr string) (*Point, error)

func MapToGroup

func MapToGroup(seed string) (H *Point, err error)

func Neg

func Neg(a *Point) *Point

func ScalarBaseMul

func ScalarBaseMul(a *big.Int) *Point

func ScalarMul

func ScalarMul(p *Point, a *big.Int) *Point

func ZeroPoint

func ZeroPoint() *Point

type PrivateKey

type PrivateKey = eddsa.PrivateKey

func GenerateEddsaPrivateKey

func GenerateEddsaPrivateKey(seed string) (sk *PrivateKey, err error)

GenerateEddsaPrivateKey: generate eddsa private key

func GenerateKey

func GenerateKey(r io.Reader) (*PrivateKey, error)

type PublicKey

type PublicKey = eddsa.PublicKey