crypto

Documentation

Index

• Constants
• Variables
• func Curve25519PrivateKeyFromEd25519(privKey crypto.PrivKey) (crypto.PrivKey, error)
• func Curve25519PublicKeyFromEd25519(pubKey crypto.PubKey) (crypto.PubKey, error)
• func Decrypt(privKey crypto.PrivKey, ciphertext []byte) ([]byte, error)
• func Encrypt(pubKey crypto.PubKey, plaintext []byte) ([]byte, error)
• func GenerateCurve25519Key(src io.Reader) (crypto.PrivKey, crypto.PubKey, error)
• func UnmarshalCurve25519PrivateKey(data []byte) (crypto.PrivKey, error)
• func UnmarshalCurve25519PublicKey(data []byte) (crypto.PubKey, error)
• type Curve25519PrivateKey
  • func (k *Curve25519PrivateKey) Decrypt(cipherText []byte) ([]byte, error)
  • func (k *Curve25519PrivateKey) Equals(o crypto.Key) bool
  • func (k *Curve25519PrivateKey) GetPublic() crypto.PubKey
  • func (k *Curve25519PrivateKey) Raw() ([]byte, error)
  • func (k *Curve25519PrivateKey) Sign(msg []byte) ([]byte, error)
  • func (k *Curve25519PrivateKey) Type() pb.KeyType
• type Curve25519PublicKey
  • func (k *Curve25519PublicKey) Encrypt(plaintext []byte) ([]byte, error)
  • func (k *Curve25519PublicKey) Equals(o crypto.Key) bool
  • func (k *Curve25519PublicKey) Raw() ([]byte, error)
  • func (k *Curve25519PublicKey) Type() pb.KeyType
  • func (k *Curve25519PublicKey) Verify(data []byte, sig []byte) (bool, error)

Constants

const (
	Libp2pKeyTypeCurve25519  = pb.KeyType(4)
	Curve25519PrivateKeySize = 32
	Curve25519PublicKeySize  = 32
)

const (
	// Length of nacl nonce
	NonceBytes = 24

	// Length of nacl ephemeral public key
	EphemeralPublicKeyBytes = 32
)

Variables

var ErrBoxDecryption = errors.New("failed to decrypt curve25519")

ErrBoxDecryption Nacl box decryption failed

var ErrSigNoop = errors.New("curve25519 keys cannot do signing or verification")

Functions

func Curve25519PrivateKeyFromEd25519

func Curve25519PrivateKeyFromEd25519(privKey crypto.PrivKey) (crypto.PrivKey, error)

func Curve25519PublicKeyFromEd25519

func Curve25519PublicKeyFromEd25519(pubKey crypto.PubKey) (crypto.PubKey, error)

func Decrypt

func Decrypt(privKey crypto.PrivKey, ciphertext []byte) ([]byte, error)

Decrypt decrypts an output using a private key.

func Encrypt

func Encrypt(pubKey crypto.PubKey, plaintext []byte) ([]byte, error)

Encrypt encrypts an output with the public key.

func GenerateCurve25519Key

func GenerateCurve25519Key(src io.Reader) (crypto.PrivKey, crypto.PubKey, error)

GenerateCurve25519Key generates a new Curve25519 private and public key pair.

func UnmarshalCurve25519PrivateKey

func UnmarshalCurve25519PrivateKey(data []byte) (crypto.PrivKey, error)

UnmarshalCurve25519PrivateKey returns a private key from input bytes.

func UnmarshalCurve25519PublicKey

func UnmarshalCurve25519PublicKey(data []byte) (crypto.PubKey, error)

UnmarshalCurve25519PublicKey returns a public key from input bytes.

Types

type Curve25519PrivateKey

type Curve25519PrivateKey struct {
	// contains filtered or unexported fields
}

Curve25519PrivateKey is a Curve25519 private key.

func (*Curve25519PrivateKey) Decrypt

func (k *Curve25519PrivateKey) Decrypt(cipherText []byte) ([]byte, error)

Decrypt attempts to decrypt ciphertext using the private key.

func (*Curve25519PrivateKey) Equals

func (k *Curve25519PrivateKey) Equals(o crypto.Key) bool

Equals compares two Curve25519 private keys.

func (*Curve25519PrivateKey) GetPublic

func (k *Curve25519PrivateKey) GetPublic() crypto.PubKey

GetPublic returns an Curve25519 public key from a private key.

func (*Curve25519PrivateKey) Raw

func (k *Curve25519PrivateKey) Raw() ([]byte, error)

Raw private key bytes.

func (*Curve25519PrivateKey) Sign

func (k *Curve25519PrivateKey) Sign(msg []byte) ([]byte, error)

Sign returns a signature from an input message. This is a noop.

func (*Curve25519PrivateKey) Type

func (k *Curve25519PrivateKey) Type() pb.KeyType

Type of the private key (Curve25519).

type Curve25519PublicKey

type Curve25519PublicKey struct {
	// contains filtered or unexported fields
}

Curve25519PublicKey is a Curve25519 public key.

func (*Curve25519PublicKey) Encrypt

func (k *Curve25519PublicKey) Encrypt(plaintext []byte) ([]byte, error)

Encrypt encrypts the plaintext using the public key and returns the ciphertext.

func (*Curve25519PublicKey) Equals

func (k *Curve25519PublicKey) Equals(o crypto.Key) bool

Equals compares two Curve25519 public keys.

func (*Curve25519PublicKey) Raw

func (k *Curve25519PublicKey) Raw() ([]byte, error)

Raw public key bytes.

func (*Curve25519PublicKey) Type

func (k *Curve25519PublicKey) Type() pb.KeyType

Type of the public key (Curve25519).

func (*Curve25519PublicKey) Verify

func (k *Curve25519PublicKey) Verify(data []byte, sig []byte) (bool, error)

Verify checks a signature agains the input data. This is a noop.