public static KeyStore addCert(String certPath /* путь до сертификата */, String keystoreName,
                                   String keystorePass,
                                   String keystorePath/* путь до папки с ключами */, String alias) throws Exception {
        final CertificateFactory cf = CertificateFactory.getInstance("X509");
        HDImageStore.setDir(keystorePath);
        final Certificate rootCert = cf.generateCertificate(
                new BufferedInputStream(new FileInputStream(certPath)));

        KeyStore ks = KeyStore.getInstance("HDImageStore");

        char[] KeyStorePass = null;
        if (!"null".equalsIgnoreCase(keystorePass)) {
            KeyStorePass = keystorePass.toCharArray();
        }

        ks.load(null,KeyStorePass);

        ks.setCertificateEntry(alias, rootCert);

        Logger.getLogger("LOGGER").info(
                "Recording of a Certificate named \"" + alias + "\" to " +
                        keystoreName + " is completed.");
        return ks;
    }