x25519

Documentation

Index

• Constants
• Variables
• func Exp(x, y []byte) []byte
• func Scheme(rng io.Reader) *scheme
• type PrivateKey
  • func NewKeypair(r io.Reader) (*PrivateKey, error)
  • func (p *PrivateKey) Bytes() []byte
  • func (k *PrivateKey) Exp(publicKey *PublicKey) []byte
  • func (p *PrivateKey) FromBytes(data []byte) error
  • func (p *PrivateKey) MarshalBinary() ([]byte, error)
  • func (p *PrivateKey) MarshalText() ([]byte, error)
  • func (p *PrivateKey) Public() nike.PublicKey
  • func (p *PrivateKey) Reset()
  • func (p *PrivateKey) UnmarshalBinary(data []byte) error
  • func (p *PrivateKey) UnmarshalText(data []byte) error
• type PublicKey
  • func (p *PublicKey) Blind(blindingFactor nike.PrivateKey) error
  • func (p *PublicKey) Bytes() []byte
  • func (p *PublicKey) FromBytes(data []byte) error
  • func (p *PublicKey) MarshalBinary() ([]byte, error)
  • func (p *PublicKey) MarshalText() ([]byte, error)
  • func (p *PublicKey) Reset()
  • func (p *PublicKey) UnmarshalBinary(data []byte) error
  • func (p *PublicKey) UnmarshalText(data []byte) error

Constants

const (
	// GroupElementLength is the length of a ECDH group element in bytes.
	GroupElementLength = 32

	// PublicKeySize is the size of a serialized PublicKey in bytes.
	PublicKeySize = GroupElementLength

	// PrivateKeySize is the size of a serialized PrivateKey in bytes.
	PrivateKeySize = GroupElementLength
)

Variables

var (
	// ErrBlindDataSizeInvalid indicates that the blinding data size was invalid.
	ErrBlindDataSizeInvalid error = errors.New("ecdh: blinding data size invalid")
)

Functions

func Exp

func Exp(x, y []byte) []byte

Exp returns the group element, the result of x^y, over the ECDH group.

func Scheme

func Scheme(rng io.Reader) *scheme

Scheme instantiates a new X25519 scheme given a CSPRNG.

Types

type PrivateKey

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

func NewKeypair

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

NewKeypair generates a new PrivateKey sampled from the provided entropy source.

func (*PrivateKey) Bytes

func (p *PrivateKey) Bytes() []byte

func (*PrivateKey) Exp

func (k *PrivateKey) Exp(publicKey *PublicKey) []byte

Exp calculates the shared secret with the provided public key.

func (*PrivateKey) FromBytes

func (p *PrivateKey) FromBytes(data []byte) error

func (*PrivateKey) MarshalBinary

func (p *PrivateKey) MarshalBinary() ([]byte, error)

func (*PrivateKey) MarshalText

func (p *PrivateKey) MarshalText() ([]byte, error)

func (*PrivateKey) Public

func (p *PrivateKey) Public() nike.PublicKey

func (*PrivateKey) Reset

func (p *PrivateKey) Reset()

func (*PrivateKey) UnmarshalBinary

func (p *PrivateKey) UnmarshalBinary(data []byte) error

func (*PrivateKey) UnmarshalText

func (p *PrivateKey) UnmarshalText(data []byte) error

type PublicKey

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

func (*PublicKey) Blind

func (p *PublicKey) Blind(blindingFactor nike.PrivateKey) error

func (*PublicKey) Bytes

func (p *PublicKey) Bytes() []byte

func (*PublicKey) FromBytes

func (p *PublicKey) FromBytes(data []byte) error

func (*PublicKey) MarshalBinary

func (p *PublicKey) MarshalBinary() ([]byte, error)

func (*PublicKey) MarshalText

func (p *PublicKey) MarshalText() ([]byte, error)

func (*PublicKey) Reset

func (p *PublicKey) Reset()

func (*PublicKey) UnmarshalBinary

func (p *PublicKey) UnmarshalBinary(data []byte) error

func (*PublicKey) UnmarshalText

func (p *PublicKey) UnmarshalText(data []byte) error