System.setProperty("ru.CryptoPro.defaultSSLProv", JCSP.PROVIDER_NAME);
        System.setProperty("javax.net.ssl.trustStoreProvider", JCSP.PROVIDER_NAME);
        System.setProperty("javax.net.ssl.keyStoreType", JCSP.HD_STORE_NAME);
        System.setProperty("javax.net.ssl.keyStorePassword", KEYSTORE_PASSWORD);
        System.setProperty("javax.net.ssl.trustStoreType", JCSP.HD_STORE_NAME);
        System.setProperty("javax.net.ssl.trustStore",
                "C:\\trust\\trust.store");
        System.setProperty("javax.net.ssl.trustStorePassword", KEYSTORE_PASSWORD);
        System.setProperty("com.sun.security.enableCRLDP", "true");
        System.setProperty("com.ibm.security.enableCRLDP", "true");

          try {
            SSLSocketFactory factory = TLSContext.initClientSSL(null,
                    "C:\\trust\\trust.store", KEYSTORE_PASSWORD, null);
            HttpsURLConnection.setDefaultSSLSocketFactory(factory);
        } catch (Exception e) {
            e.printStackTrace();
        }


        String timestamp = getTimestamp();
        OAuthClientRequest oAuthClientRequest = OAuthClientRequest.tokenLocation("https://esia-portal1.test.gosuslugi.ru/aas/oauth2/te")
                .setClientId(OPTIONS_CLIENT_ID)
                .setCode(optionsCode)
                .setGrantType(grantType)
                .setClientSecret(generateClientSecret(scope, timestamp))
                .setParameter("state", optionsState)
                .setRedirectURI(URI_REDIRECT)
                .setScope(scope)
                .setParameter("timestamp", timestamp)
                .setParameter("token_type", "Bearer")
                .setParameter("access_type", OPTIONS_ACCESS_TYPE_OFFLINE)
                .buildBodyMessage();
        OAuthClient oAuthClient = new OAuthClient(new URLConnectionClient());
        return oAuthClient.accessToken(oAuthClientRequest, OAuth.HttpMethod.POST, OAuthJSONAccessTokenResponse.class);

   private byte[] sign(String str) throws Exception {
        KeyStore keyStore = KeyStore.getInstance(JCSP.HD_STORE_NAME,
                JCSP.PROVIDER_NAME);
        keyStore.load(null, null);

        PrivateKey key = (PrivateKey) keyStore.getKey(KEY_ALIAS, KEYSTORE_PASSWORD.toCharArray());
        Signature signature = Signature.getInstance(JCP.GOST_SIGN_2012_512_NAME);
        signature.initSign(key);
        byte[] data = str.getBytes();
        signature.update(data);
        X509Certificate certificate = (X509Certificate) keyStore.getCertificate(KEY_ALIAS);
        return CMSSign.createHashCMSEx(data, false, new PrivateKey[]{key}, new Certificate[]{certificate}, null,
                true, false, CMStools.DIGEST_OID_2012_512, CMStools.SIGN_OID_2012_512,
                CMStools.DIGEST_ALG_NAME_2012_512, JCP.GOST_SIGN_2012_512_NAME, JCSP.PROVIDER_NAME);
    }