Esempio n. 1
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func (n naclBoxSecretKey) Box(
	receiver saltpack.BoxPublicKey, nonce *saltpack.Nonce, msg []byte) []byte {
	ret := box.Seal([]byte{}, msg, (*[24]byte)(nonce),
		(*[32]byte)(receiver.ToRawBoxKeyPointer()),
		(*[32]byte)(n.Private))
	return ret
}
Esempio n. 2
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// Unbox runs the NaCl unbox operation on the given ciphertext and nonce,
// using the receiver as the secret key.
func (k SecretKey) Unbox(sender saltpack.BoxPublicKey, nonce *saltpack.Nonce, msg []byte) ([]byte, error) {
	ret, ok := box.Open([]byte{}, msg, (*[24]byte)(nonce), (*[32]byte)(sender.ToRawBoxKeyPointer()), (*[32]byte)(&k.sec))
	if !ok {
		return nil, saltpack.ErrDecryptionFailed
	}
	return ret, nil
}
Esempio n. 3
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func (n naclBoxSecretKey) Precompute(
	sender saltpack.BoxPublicKey) saltpack.BoxPrecomputedSharedKey {
	var res naclBoxPrecomputedSharedKey
	box.Precompute((*[32]byte)(&res),
		(*[32]byte)(sender.ToRawBoxKeyPointer()),
		(*[32]byte)(n.Private))
	return res
}
Esempio n. 4
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func (n naclBoxSecretKey) Unbox(
	sender saltpack.BoxPublicKey, nonce *saltpack.Nonce, msg []byte) (
	[]byte, error) {
	ret, ok := box.Open([]byte{}, msg, (*[24]byte)(nonce),
		(*[32]byte)(sender.ToRawBoxKeyPointer()),
		(*[32]byte)(n.Private))
	if !ok {
		return nil, DecryptionError{}
	}
	return ret, nil
}
Esempio n. 5
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// Precompute computes a shared key with the passed public key.
func (k SecretKey) Precompute(sender saltpack.BoxPublicKey) saltpack.BoxPrecomputedSharedKey {
	var res PrecomputedSharedKey
	box.Precompute((*[32]byte)(&res), (*[32]byte)(sender.ToRawBoxKeyPointer()), (*[32]byte)(&k.sec))
	return res
}