crypto

package

v0.0.0-...-f2fe5c7 Latest Latest Go to latest Published: Jun 17, 2017 License: GPL-3.0 Imports: 4 Imported by: 0

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Repository

github.com/Impyy/tox4go

Documentation ¶

Index ¶

Constants
func Decrypt(encryptedData []byte, sharedKey *[SharedKeySize]byte, nonce *[NonceSize]byte) ([]byte, error)
func Encrypt(data []byte, sharedKey *[SharedKeySize]byte) ([]byte, *[NonceSize]byte, error)
func GenerateKeyPair() (*[PublicKeySize]byte, *[SecretKeySize]byte, error)
func GenerateNonce() (*[NonceSize]byte, error)
func GeneratePingID() (uint64, error)
func PrecomputeKey(publicKey *[PublicKeySize]byte, secretKey *[SecretKeySize]byte) *[SharedKeySize]byte
func Zero(buffer []byte)

Constants ¶

View Source

const (
	// PublicKeySize represents the size of a public key in bytes.
	PublicKeySize = 32

	// SecretKeySize represents the size of a secret key in bytes.
	SecretKeySize = 32

	// SharedKeySize represents the size of a shared key in bytes.
	SharedKeySize = 32

	// NonceSize represents the size of a nonce in bytes.
	NonceSize = 24
)

Variables ¶

This section is empty.

Functions ¶

func Decrypt ¶

func Decrypt(encryptedData []byte, sharedKey *[SharedKeySize]byte, nonce *[NonceSize]byte) ([]byte, error)

Decrypt uses a crypto_box_open_afternm-equivalent function to decrypt the given data.

func Encrypt ¶

func Encrypt(data []byte, sharedKey *[SharedKeySize]byte) ([]byte, *[NonceSize]byte, error)

Encrypt uses a crypto_box_afternm-equivalent function to encrypt the given data.

func GenerateKeyPair ¶

func GenerateKeyPair() (*[PublicKeySize]byte, *[SecretKeySize]byte, error)

GenerateKeyPair generates a new curve25519 keypair.

func GeneratePingID ¶

func GeneratePingID() (uint64, error)

GeneratePingID generates a new random ping ID.

func PrecomputeKey ¶

func PrecomputeKey(publicKey *[PublicKeySize]byte, secretKey *[SecretKeySize]byte) *[SharedKeySize]byte

PrecomputeKey calculates the shared key between the peer's publicKey and our own secret key.

func Zero ¶

func Zero(buffer []byte)

Zero replaces all values in the given buffer with zeros. This might give a false sense of security. There is no guarantee that the system hasn't swapped a piece of RAM to disk that contains this buffer.

Types ¶