ed25519

Documentation

Index

• Constants
• func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error)
• func Sign(privateKey PrivateKey, message []byte) []byte
• func Verify(publicKey PublicKey, message, sig []byte) bool
• type PrivateKey
  • func NewKeyFromRaw(h []byte) PrivateKey
  • func NewKeyFromSeed(seed []byte) PrivateKey
  • func NewKeyFromStandard(key goEd25519.PrivateKey) PrivateKey
  • func (priv PrivateKey) Equal(x crypto.PrivateKey) bool
  • func (priv PrivateKey) Public() crypto.PublicKey
  • func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error)
• type PublicKey

Constants

const (
	// PublicKeySize is the size, in bytes, of public keys as used in this package.
	PublicKeySize = 32
	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
	PrivateKeySize     = PrivateKeyFormSize + PublicKeySize
	PrivateKeyFormSize = 64
	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
	SignatureSize = 64
)

Functions

func GenerateKey

func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error)

GenerateKey generates a public/private key pair using entropy from rand. If rand is nil, crypto/rand.Reader will be used.

func Sign

func Sign(privateKey PrivateKey, message []byte) []byte

Sign signs the message with privateKey and returns a signature. It will panic if len(privateKey) is not PrivateKeySize.

func Verify

func Verify(publicKey PublicKey, message, sig []byte) bool

Verify reports whether sig is a valid signature of message by publicKey. It will panic if len(publicKey) is not PublicKeySize.

Types

type PrivateKey

type PrivateKey []byte

func NewKeyFromRaw

func NewKeyFromRaw(h []byte) PrivateKey

func NewKeyFromSeed

func NewKeyFromSeed(seed []byte) PrivateKey

NewKeyFromSeed calculates a private key from a seed. It will panic if len(seed) is not SeedSize. This function is provided for interoperability with RFC 8032. RFC 8032's private keys correspond to seeds in this package.

func NewKeyFromStandard

func NewKeyFromStandard(key goEd25519.PrivateKey) PrivateKey

func (PrivateKey) Equal

func (priv PrivateKey) Equal(x crypto.PrivateKey) bool

Equal reports whether priv and x have the same value.

func (PrivateKey) Public

func (priv PrivateKey) Public() crypto.PublicKey

Public returns the PublicKey corresponding to priv.

func (PrivateKey) Sign

func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error)

Sign signs the given message with priv. Ed25519 performs two passes over messages to be signed and therefore cannot handle pre-hashed messages. Thus opts.HashFunc() must return zero to indicate the message hasn't been hashed. This can be achieved by passing crypto.Hash(0) as the value for opts.

type PublicKey

type PublicKey goEd25519.PublicKey