Example usage for java.security SecureRandom SecureRandom

Introduction

In this page you can find the example usage for java.security SecureRandom SecureRandom.

Prototype

public SecureRandom()

Source Link

Document

Constructs a secure random number generator (RNG) implementing the default random number algorithm.

Usage

From source file:cn.cuizuoli.appranking.http.client.TrustSSLSocketFactoryFactoryBean.java

@Override
public SSLSocketFactory getObject() throws Exception {
    try {//w ww .j a  v a 2  s  .  com
        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(null, new TrustManager[] { new TrustAnyTrustManager() }, new SecureRandom());
        return sc.getSocketFactory();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:eu.cloudwave.wp5.feedbackhandler.model.factories.ApplicationFactoryImpl.java

/**
 * {@inheritDoc}//from w ww  .  j  av  a2  s .c  o m
 */
@Override
public DbApplication create(final String applicationId) {
    final String accessToken = new BigInteger(130, new SecureRandom()).toString(32);
    return new DbApplicationImpl(applicationId, accessToken);
}

From source file:com.rr.familyPlanning.ui.security.encryptObject.java

/**
 * Encrypts and encodes the Object and IV for url inclusion
 *
 * @param input//from   www .j  a va  2s  .c om
 * @return
 * @throws Exception
 */
public String[] encryptObject(Object obj) throws Exception {
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    ObjectOutput out = new ObjectOutputStream(stream);
    try {
        // Serialize the object
        out.writeObject(obj);
        byte[] serialized = stream.toByteArray();
        // Setup the cipher and Init Vector
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        byte[] iv = new byte[cipher.getBlockSize()];
        new SecureRandom().nextBytes(iv);
        IvParameterSpec ivSpec = new IvParameterSpec(iv);
        // Hash the key with SHA-256 and trim the output to 128-bit for the key
        MessageDigest digest = MessageDigest.getInstance("SHA-256");
        digest.update(keyString.getBytes());
        byte[] key = new byte[16];
        System.arraycopy(digest.digest(), 0, key, 0, key.length);
        SecretKeySpec keySpec = new SecretKeySpec(key, "AES");
        // encrypt
        cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
        // Encrypt & Encode the input
        byte[] encrypted = cipher.doFinal(serialized);
        byte[] base64Encoded = Base64.encodeBase64(encrypted);
        String base64String = new String(base64Encoded);
        String urlEncodedData = URLEncoder.encode(base64String, "UTF-8");
        // Encode the Init Vector
        byte[] base64IV = Base64.encodeBase64(iv);
        String base64IVString = new String(base64IV);
        String urlEncodedIV = URLEncoder.encode(base64IVString, "UTF-8");

        return new String[] { urlEncodedData, urlEncodedIV };
    } finally {
        stream.close();
        out.close();
    }
}

From source file:UuidGenerator.java

/**
 * Initializes the factory./*from w w  w . ja v  a  2  s  . c o  m*/
 *
 * @param obj
 */
private synchronized static void initialize(final Object obj) {
    try {
        InetAddress inet = InetAddress.getLocalHost();
        byte[] bytes = inet.getAddress();
        String hexInetAddress = hexFormat(getInt(bytes), 8);
        String thisHashCode = hexFormat(System.identityHashCode(obj), 8);
        s_midValue = hexInetAddress + thisHashCode;
        s_seeder = new SecureRandom();
        s_seeder.nextInt();
    } catch (java.net.UnknownHostException e) {
        throw new Error("can not initialize the UuidGenerator generator");
    }
    s_initialized = true;
}

From source file:pl.bcichecki.rms.client.android.services.clients.restful.https.ssl.SimpleSSLSocketFactory.java

public SimpleSSLSocketFactory(KeyStore truststore)
        throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
    super(truststore);
    sslContext = SSLContext.getInstance("SSL");
    x509TrustManager = new SimpleX509TrustManager();
    sslContext.init(null, new TrustManager[] { x509TrustManager }, new SecureRandom());
}

From source file:org.obiba.onyx.core.identifier.impl.randomincrement.RandomIncrementIdentifierSequence.java

public RandomIncrementIdentifierSequence() {
    random = new SecureRandom();
    byte bytes[] = new byte[20];
    random.nextBytes(bytes);/*from   w w  w . j a v  a2s  . c  om*/
}

From source file:ti.modules.titanium.network.NonValidatingSSLSocketFactory.java

public NonValidatingSSLSocketFactory() {
    try {//from   w w w.  java2  s .c om
        SSLContext context = SSLContext.getInstance("TLS");
        TrustManager managers[] = new TrustManager[] { new NonValidatingTrustManager() };
        context.init(null, managers, new SecureRandom());
        sslFactory = context.getSocketFactory();
    } catch (Exception e) {
        Log.e(TAG, e.getMessage(), e);
    }

}

From source file:dtu.ds.warnme.app.ws.client.https.ssl.SimpleSSLSocketFactory.java

@SuppressLint("TrulyRandom")
public SimpleSSLSocketFactory(KeyStore truststore)
        throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
    super(truststore);
    sslContext = SSLContext.getInstance("SSL");
    x509TrustManager = new SimpleX509TrustManager();
    sslContext.init(null, new TrustManager[] { x509TrustManager }, new SecureRandom());
}

From source file:course.SessionDAO.java

public String startSession(String username) {

    // get 32 byte random number. that's a lot of bits.
    SecureRandom generator = new SecureRandom();
    byte randomBytes[] = new byte[32];
    generator.nextBytes(randomBytes);/*  w  w  w  .  j  a v  a2 s  .  c o m*/

    // result = new Base64().encodeToString(rawHmac);

    // BASE64Encoder encoder = new BASE64Encoder();

    // String sessionID = encoder.encode(randomBytes);

    String sessionID = new Base64().encodeToString(randomBytes);

    // build the BSON object
    BasicDBObject session = new BasicDBObject("username", username);

    session.append("_id", sessionID);

    sessionsCollection.insert(session);

    return session.getString("_id");
}

From source file:com.sandopolus.yeildify.service1.resources.RamdomResourceImpl.java

@PostConstruct
public void init() {
    RAND = new SecureRandom();
    JSON_MAPPER = new ObjectMapper();
    HTTP_CLIENT = HttpClientBuilder.create().build();
}