// DecryptBlob decrypts the given slice of data.
func (i *Ident) DecryptBlob(data []byte, publicKey *[crypto.PublicKeySize]byte, nonce *[crypto.NonceSize]byte) ([]byte, error) {
sharedKey := crypto.PrecomputeKey(publicKey, i.SecretKey)
decryptedData, err := crypto.Decrypt(data, sharedKey, nonce)
if err != nil {
return nil, err
}
return decryptedData, nil
}
// EncryptBlob encrypts the given slice of data.
func (i *Ident) EncryptBlob(data []byte, publicKey *[crypto.PublicKeySize]byte) ([]byte, *[crypto.NonceSize]byte, error) {
sharedKey := crypto.PrecomputeKey(publicKey, i.SecretKey)
encryptedPayload, nonce, err := crypto.Encrypt(data, sharedKey)
if err != nil {
return nil, nil, err
}
return encryptedPayload, nonce, nil
}