public static function importEncryptionKeyPair(HiddenString $keyData): EncryptionKeyPair
    {
        return new EncryptionKeyPair(
            new EncryptionSecretKey(
                new HiddenString(
                    self::getKeyDataFromString(
                        Hex::decode($keyData->getString())
                    )
                )
            )
        );
    }