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:com.kixeye.chassis.transport.shared.JettyConnectorRegistry.java

/**
 * Register to listen to HTTPS.//from w  w w. j a va2  s .c o m
 * 
 * @param server
 * @param address
 * @throws Exception 
 */
public static void registerHttpsConnector(Server server, InetSocketAddress address, boolean selfSigned,
        boolean mutualSsl, String keyStorePath, String keyStoreData, String keyStorePassword,
        String keyManagerPassword, String trustStorePath, String trustStoreData, String trustStorePassword,
        String[] excludedCipherSuites) throws Exception {
    // SSL Context Factory
    SslContextFactory sslContextFactory = new SslContextFactory();

    if (selfSigned) {
        char[] passwordChars = UUID.randomUUID().toString().toCharArray();

        KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

        keyStore.load(null, passwordChars);

        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        keyPairGenerator.initialize(1024);
        KeyPair keyPair = keyPairGenerator.generateKeyPair();

        X509V3CertificateGenerator v3CertGen = new X509V3CertificateGenerator();

        v3CertGen.setSerialNumber(BigInteger.valueOf(new SecureRandom().nextInt()).abs());
        v3CertGen.setIssuerDN(new X509Principal("CN=" + "kixeye.com" + ", OU=None, O=None L=None, C=None"));
        v3CertGen.setNotBefore(new Date(System.currentTimeMillis() - 1000L * 60 * 60 * 24 * 30));
        v3CertGen.setNotAfter(new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 365 * 10)));
        v3CertGen.setSubjectDN(new X509Principal("CN=" + "kixeye.com" + ", OU=None, O=None L=None, C=None"));

        v3CertGen.setPublicKey(keyPair.getPublic());
        v3CertGen.setSignatureAlgorithm("MD5WithRSAEncryption");

        X509Certificate privateKeyCertificate = v3CertGen.generateX509Certificate(keyPair.getPrivate());

        keyStore.setKeyEntry("selfSigned", keyPair.getPrivate(), passwordChars,
                new java.security.cert.Certificate[] { privateKeyCertificate });

        ByteArrayOutputStream keyStoreBaos = new ByteArrayOutputStream();
        keyStore.store(keyStoreBaos, passwordChars);

        keyStoreData = new String(Hex.encode(keyStoreBaos.toByteArray()), Charsets.UTF_8);
        keyStorePassword = new String(passwordChars);
        keyManagerPassword = keyStorePassword;

        sslContextFactory.setTrustAll(true);
    }

    KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

    if (StringUtils.isNotBlank(keyStoreData)) {
        keyStore.load(new ByteArrayInputStream(Hex.decode(keyStoreData)), keyStorePassword.toCharArray());
    } else if (StringUtils.isNotBlank(keyStorePath)) {
        try (InputStream inputStream = new DefaultResourceLoader().getResource(keyStorePath).getInputStream()) {
            keyStore.load(inputStream, keyStorePassword.toCharArray());
        }
    }

    sslContextFactory.setKeyStore(keyStore);
    sslContextFactory.setKeyStorePassword(keyStorePassword);
    if (StringUtils.isBlank(keyManagerPassword)) {
        keyManagerPassword = keyStorePassword;
    }
    sslContextFactory.setKeyManagerPassword(keyManagerPassword);
    KeyStore trustStore = null;
    if (StringUtils.isNotBlank(trustStoreData)) {
        trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
        trustStore.load(new ByteArrayInputStream(Hex.decode(trustStoreData)), trustStorePassword.toCharArray());
    } else if (StringUtils.isNotBlank(trustStorePath)) {
        trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
        try (InputStream inputStream = new DefaultResourceLoader().getResource(trustStorePath)
                .getInputStream()) {
            trustStore.load(inputStream, trustStorePassword.toCharArray());
        }
    }
    if (trustStore != null) {
        sslContextFactory.setTrustStore(trustStore);
        sslContextFactory.setTrustStorePassword(trustStorePassword);
    }
    sslContextFactory.setNeedClientAuth(mutualSsl);
    sslContextFactory.setExcludeCipherSuites(excludedCipherSuites);

    // SSL Connector
    ServerConnector connector = new ServerConnector(server,
            new SslConnectionFactory(sslContextFactory, HttpVersion.HTTP_1_1.toString()),
            new HttpConnectionFactory());
    connector.setHost(address.getHostName());
    connector.setPort(address.getPort());

    server.addConnector(connector);
}

---

From source file:com.jwt.security.auth.cryptographics.Crypto.java

public static String random(int length) {
    byte[] salt = new byte[length];
    new SecureRandom().nextBytes(salt);
    return hex(salt);
}

---

From source file:com.camel.trainreserve.JDKHttpsClient.java

public static ByteArrayOutputStream doGetImg(String url, String cookieStr) {
    InputStream in = null;/* w  w  w. j a va 2s .co m*/
    ByteArrayOutputStream outStream = null;
    try {
        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(null, new TrustManager[] { new DefaultTrustManager() }, new SecureRandom());

        URL console = new URL(url);
        HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();
        conn.setRequestProperty("Cookie", cookieStr);
        conn.setSSLSocketFactory(sc.getSocketFactory());
        conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
        conn.connect();
        in = conn.getInputStream();
        outStream = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len = 0;
        while ((len = in.read(buffer)) != -1) {
            outStream.write(buffer, 0, len);
        }
        conn.disconnect();
    } catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (KeyManagementException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (MalformedURLException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } finally {
        try {
            in.close();
        } catch (Exception e) {
        }
    }
    return outStream;
}

---

From source file:com.greenline.hrs.admin.util.encrypt.DESUtil.java

/**
 * Description ?//from   ww w  . j a  v a  2 s  .  c  o  m
 *
 * @param data
 * @param key  byte
 * @return
 * @throws Exception
 */
private static byte[] encrypt(byte[] data, byte[] key) throws GeneralSecurityException {
    // ????
    SecureRandom sr = new SecureRandom();

    // ?DESKeySpec
    DESKeySpec dks = new DESKeySpec(key);

    // ?DESKeySpec??SecretKey
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
    SecretKey securekey = keyFactory.generateSecret(dks);

    // Cipher??
    Cipher cipher = Cipher.getInstance(DES);

    // ?Cipher
    cipher.init(Cipher.ENCRYPT_MODE, securekey, sr);

    return cipher.doFinal(data);

}

---

From source file:edu.utdallas.bigsecret.cipher.AesCtr.java

/**
 * Class constructor. Creates a Javax.Crypto.Cipher instance with AES in CTR<br>
 * mode, without any padding. /*from   w w  w .j  a v  a  2s.co m*/
 * @param key Input key for the cipher. Should be 16, 24, or 32 bytes long
 * @throws Exception Throws exception if key length is not 16, 24, or 32 bytes.<br>
 *                 May throw exception based on Javax.Crypto classes.
 */
public AesCtr(byte[] key) throws Exception {
    //use default constructor for cipher.Cipher
    super();

    //check if input key is ok
    if (key.length != 16 && key.length != 24 && key.length != 32) {
        throw new Exception("Key length should be 16, 24, or 32 bytes long");
    }

    //set key length
    KEY_SIZE_BYTES = key.length;

    //create secret key spec instance
    m_keySpec = new SecretKeySpec(key, "AES");

    //create cipher instance
    m_cipher = javax.crypto.Cipher.getInstance("AES/CTR/NoPadding");

    //create secure random number generator instance
    m_secureRandom = new SecureRandom();
}

---

From source file:org.apache.falcon.request.BaseRequest.java

public static SSLContext getSslContext() throws Exception {
    SSLContext sslContext = SSLContext.getInstance("SSL");
    sslContext.init(null, new TrustManager[] { TrustManagerUtils.getValidateServerCertificateTrustManager() },
            new SecureRandom());
    return sslContext;
}

---

From source file:com.jaspersoft.jasperserver.jaxrs.client.core.SessionStorage.java

private void initSSL(ClientBuilder clientBuilder) {
    try {/*from w  w w . j av  a  2s  .c  o  m*/
        SSLContext sslContext = SSLContext.getInstance("SSL");
        HostnameVerifier hostnameVerifier = new HostnameVerifier() {
            @Override
            public boolean verify(String s, SSLSession sslSession) {
                return true;
            }
        };
        sslContext.init(null, configuration.getTrustManagers(), new SecureRandom());

        clientBuilder.sslContext(sslContext);
        clientBuilder.hostnameVerifier(hostnameVerifier);

    } catch (Exception e) {
        log.error("Unable inFolder init SSL context", e);
        throw new RuntimeException("Unable inFolder init SSL context", e);
    }
}

---

From source file:org.cloudfoundry.identity.uaa.login.feature.CreateAccountIT.java

@Test
public void testUserInitiatedSignup() throws Exception {
    String userEmail = "user" + new SecureRandom().nextInt() + "@example.com";

    webDriver.get(baseUrl + "/");
    webDriver.findElement(By.xpath("//*[text()='Create account']")).click();

    Assert.assertEquals("Create your account", webDriver.findElement(By.tagName("h1")).getText());

    int receivedEmailSize = simpleSmtpServer.getReceivedEmailSize();

    webDriver.findElement(By.name("email")).sendKeys(userEmail);
    webDriver.findElement(By.name("password")).sendKeys("secret");
    webDriver.findElement(By.name("password_confirmation")).sendKeys("secret");

    webDriver.findElement(By.xpath("//input[@value='Send activation link']")).click();

    Assert.assertEquals(receivedEmailSize + 1, simpleSmtpServer.getReceivedEmailSize());
    Iterator receivedEmail = simpleSmtpServer.getReceivedEmail();
    SmtpMessage message = (SmtpMessage) receivedEmail.next();
    receivedEmail.remove();/*from w  ww. j a v a 2 s  .  co m*/
    Assert.assertEquals(userEmail, message.getHeaderValue("To"));
    Assert.assertThat(message.getBody(), containsString("Activate your account"));

    Assert.assertEquals("Create your account", webDriver.findElement(By.tagName("h1")).getText());
    Assert.assertEquals("Please check email for an activation link.",
            webDriver.findElement(By.cssSelector(".instructions-sent")).getText());

    String link = testClient.extractLink(message.getBody());
    assertFalse(isEmpty(link));

    webDriver.get(link);
    Assert.assertThat(webDriver.findElement(By.cssSelector("h1")).getText(), containsString("Where to?"));

    webDriver.findElement(By.xpath("//*[text()='" + userEmail + "']")).click();
    webDriver.findElement(By.linkText("Sign Out")).click();

    webDriver.findElement(By.name("username")).sendKeys(userEmail);
    webDriver.findElement(By.name("password")).sendKeys("secret");
    webDriver.findElement(By.xpath("//input[@value='Sign in']")).click();

    Assert.assertThat(webDriver.findElement(By.cssSelector("h1")).getText(), containsString("Where to?"));
}

---

From source file:com.thoughtworks.go.security.CipherProvider.java

private byte[] generateKey() {
    SecureRandom random = new SecureRandom();
    random.setSeed("go-server".getBytes());
    KeyGenerationParameters generationParameters = new KeyGenerationParameters(random,
            DESParameters.DES_KEY_LENGTH * 8);
    DESKeyGenerator generator = new DESKeyGenerator();
    generator.init(generationParameters);
    return Hex.encode(generator.generateKey());
}

---

From source file:dk.netarkivet.harvester.harvesting.MetadataFileWriterTester.java

public void testMetadataFileWriterArc() {
    File metafile = new File("metadata.arc");
    MetadataFileWriter mdfw = MetadataFileWriterArc.createWriter(metafile);

    String uri = "http://www.netarkivet.dk/";
    long ctm = System.currentTimeMillis();

    SecureRandom random = new SecureRandom();
    byte[] payload = new byte[8192];
    random.nextBytes(payload);/*from   w ww  .  j  a v  a  2  s.  c  o m*/

    try {
        mdfw.write(uri, "application/binary", "127.0.0.1", ctm, payload);
        mdfw.close();
    } catch (IOException e) {
        e.printStackTrace();
        Assert.fail("Unexpected exception!");
    }

    metafile.deleteOnExit();

    File metadataArcFile = new File(TestInfo.WORKING_DIR, "42-metadata-1.arc");
    MetadataFileWriter mfwa = MetadataFileWriterArc.createWriter(metadataArcFile);
    for (File f : logsDir.listFiles()) {
        mfwa.writeFileTo(f, "metadata://netarkivet.dk/crawl/logs/" + f.getName(), "text/plain");
    }
}

---

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