derivation

Documentation

Overview

Package derivation provides functions for ed25519 key derivation as described in: https://github.com/satoshilabs/slips/blob/master/slip-0010.md

Index

• Constants
• Variables
• type Key
  • func DeriveForPath(path string, seed []byte) (*Key, error)
  • func NewMasterKey(seed []byte) (*Key, error)
  • func (k *Key) Derive(i uint32) (*Key, error)
  • func (k *Key) PublicKey() ([]byte, error)
  • func (k *Key) RawSeed() [32]byte

Constants

const (
	// StellarAccountPrefix is a prefix for digitalbits key pairs derivation.
	StellarAccountPrefix = "m/44'/148'"
	// StellarPrimaryAccountPath is a derivation path of the primary account.
	StellarPrimaryAccountPath = "m/44'/148'/0'"
	// StellarAccountPathFormat is a path format used for digitalbits key pair
	// derivation as described in SEP-00XX. Use with `fmt.Sprintf` and `DeriveForPath`.
	StellarAccountPathFormat = "m/44'/148'/%d'"
	// FirstHardenedIndex is the index of the first hardened key.
	FirstHardenedIndex = uint32(0x80000000)
)

Variables

var (
	ErrInvalidPath        = errors.New("Invalid derivation path")
	ErrNoPublicDerivation = errors.New("No public derivation for ed25519")
)

Types

type Key

type Key struct {
	Key       []byte
	ChainCode []byte
}

func DeriveForPath

func DeriveForPath(path string, seed []byte) (*Key, error)

DeriveForPath derives key for a path in BIP-44 format and a seed. Ed25119 derivation operated on hardened keys only.

func NewMasterKey

func NewMasterKey(seed []byte) (*Key, error)

NewMasterKey generates a new master key from seed.

func (*Key) Derive

func (k *Key) Derive(i uint32) (*Key, error)

func (*Key) PublicKey

func (k *Key) PublicKey() ([]byte, error)

PublicKey returns public key for a derived private key.

func (*Key) RawSeed

func (k *Key) RawSeed() [32]byte

RawSeed returns raw seed bytes