Example usage for java.security SecureRandom nextLong

Introduction

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

Prototype

public long nextLong() 

Source Link

Document

Returns the next pseudorandom, uniformly distributed long value from this random number generator's sequence.

Usage

From source file:com.facebook.LinkBench.LinkBenchDriver.java

/**
 * Create a new random number generated, optionally seeded to a known
 * value from the config file.  If seed value not provided, a seed
 * is chosen.  In either case the seed is logged for later reproducibility.
 * @param props/*ww  w.  j av a2 s .com*/
 * @param configKey config key for the seed value
 * @return
 */
private Random createMasterRNG(Properties props, String configKey) {
    long seed;
    if (props.containsKey(configKey)) {
        seed = ConfigUtil.getLong(props, configKey);
        logger.info("Using configured random seed " + configKey + "=" + seed);
    } else {
        seed = System.nanoTime() ^ (long) configKey.hashCode();
        logger.info("Using random seed " + seed + " since " + configKey + " not specified");
    }

    SecureRandom masterRandom;
    try {
        masterRandom = SecureRandom.getInstance("SHA1PRNG");
    } catch (NoSuchAlgorithmException e) {
        logger.warn("SHA1PRNG not available, defaulting to default SecureRandom" + " implementation");
        masterRandom = new SecureRandom();
    }
    masterRandom.setSeed(ByteBuffer.allocate(8).putLong(seed).array());

    // Can be used to check that rng is behaving as expected
    logger.debug("First number generated by master " + configKey + ": " + masterRandom.nextLong());
    return masterRandom;
}

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From source file:com.badlogic.gdx.pay.android.ouya.PurchaseManagerAndroidOUYA.java

public void requestPurchase(final Product product)
        throws GeneralSecurityException, UnsupportedEncodingException, JSONException {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    // This is an ID that allows you to associate a successful purchase with
    // it's original request. The server does nothing with this string except
    // pass it back to you, so it only needs to be unique within this instance
    // of your app to allow you to pair responses with requests.
    String uniqueId = Long.toHexString(sr.nextLong());

    JSONObject purchaseRequest = new JSONObject();
    purchaseRequest.put("uuid", uniqueId);
    purchaseRequest.put("identifier", product.getIdentifier());
    // purchaseRequest.put("testing", "true"); // !!!! This value is only needed for testing, not setting it results in a live purchase
    String purchaseRequestJson = purchaseRequest.toString();

    byte[] keyBytes = new byte[16];
    sr.nextBytes(keyBytes);// w  ww  .  j  a  va  2  s  .c o  m
    SecretKey key = new SecretKeySpec(keyBytes, "AES");

    byte[] ivBytes = new byte[16];
    sr.nextBytes(ivBytes);
    IvParameterSpec iv = new IvParameterSpec(ivBytes);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    byte[] payload = cipher.doFinal(purchaseRequestJson.getBytes("UTF-8"));

    cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, ouyaPublicKey);
    byte[] encryptedKey = cipher.doFinal(keyBytes);

    purchasable = new Purchasable(product.getIdentifier(), Base64.encodeToString(encryptedKey, Base64.NO_WRAP),
            Base64.encodeToString(ivBytes, Base64.NO_WRAP), Base64.encodeToString(payload, Base64.NO_WRAP));

    synchronized (ouyaOutstandingPurchaseRequests) {
        ouyaOutstandingPurchaseRequests.put(uniqueId, product);
    }
}

---

From source file:com.guillaumesoft.escapehellprison.PurchaseActivity.java

public void requestPurchase(final Product product)
        throws GeneralSecurityException, UnsupportedEncodingException, JSONException {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    // This is an ID that allows you to associate a successful purchase with
    // it's original request. The server does nothing with this string except
    // pass it back to you, so it only needs to be unique within this instance
    // of your app to allow you to pair responses with requests.
    String uniqueId = Long.toHexString(sr.nextLong());

    JSONObject purchaseRequest = new JSONObject();
    purchaseRequest.put("uuid", uniqueId);
    purchaseRequest.put("identifier", product.getIdentifier());
    purchaseRequest.put("testing", "true"); // This value is only needed for testing, not setting it results in a live purchase
    String purchaseRequestJson = purchaseRequest.toString();

    byte[] keyBytes = new byte[16];
    sr.nextBytes(keyBytes);/*from ww  w .  j a  va  2s . c  o m*/
    SecretKey key = new SecretKeySpec(keyBytes, "AES");

    byte[] ivBytes = new byte[16];
    sr.nextBytes(ivBytes);
    IvParameterSpec iv = new IvParameterSpec(ivBytes);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    byte[] payload = cipher.doFinal(purchaseRequestJson.getBytes("UTF-8"));

    cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, mPublicKey);
    byte[] encryptedKey = cipher.doFinal(keyBytes);

    Purchasable purchasable = new Purchasable(product.getIdentifier());

    synchronized (mOutstandingPurchaseRequests) {
        mOutstandingPurchaseRequests.put(uniqueId, product);
    }
    mOuyaFacade.requestPurchase(this, purchasable, new PurchaseListener(product));
}

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From source file:tv.ouya.sample.IapSampleActivity.java

public void requestPurchase(final Product product)
        throws GeneralSecurityException, UnsupportedEncodingException, JSONException {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    // This is an ID that allows you to associate a successful purchase with
    // it's original request. The server does nothing with this string except
    // pass it back to you, so it only needs to be unique within this instance
    // of your app to allow you to pair responses with requests.
    String uniqueId = Long.toHexString(sr.nextLong());

    JSONObject purchaseRequest = new JSONObject();
    purchaseRequest.put("uuid", uniqueId);
    purchaseRequest.put("identifier", product.getIdentifier());
    purchaseRequest.put("testing", "true"); // This value is only needed for testing, not setting it results in a live purchase
    String purchaseRequestJson = purchaseRequest.toString();

    byte[] keyBytes = new byte[16];
    sr.nextBytes(keyBytes);//  w  ww . j  a v a  2  s  .  c om
    SecretKey key = new SecretKeySpec(keyBytes, "AES");

    byte[] ivBytes = new byte[16];
    sr.nextBytes(ivBytes);
    IvParameterSpec iv = new IvParameterSpec(ivBytes);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    byte[] payload = cipher.doFinal(purchaseRequestJson.getBytes("UTF-8"));

    cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, mPublicKey);
    byte[] encryptedKey = cipher.doFinal(keyBytes);

    Purchasable purchasable = new Purchasable(product.getIdentifier(),
            Base64.encodeToString(encryptedKey, Base64.NO_WRAP), Base64.encodeToString(ivBytes, Base64.NO_WRAP),
            Base64.encodeToString(payload, Base64.NO_WRAP));

    synchronized (mOutstandingPurchaseRequests) {
        mOutstandingPurchaseRequests.put(uniqueId, product);
    }
    ouyaFacade.requestPurchase(purchasable, new PurchaseListener(product));
}

---

From source file:org.apache.hadoop.crypto.TestCryptoCodec.java

/**
 * Regression test for IV calculation, see HADOOP-11343
 *///from w w w  . jav  a  2 s  .co  m
@Test(timeout = 120000)
public void testCalculateIV() throws Exception {
    JceAesCtrCryptoCodec codec = new JceAesCtrCryptoCodec();
    codec.setConf(conf);

    SecureRandom sr = new SecureRandom();
    byte[] initIV = new byte[16];
    byte[] IV = new byte[16];

    long iterations = 1000;
    long counter = 10000;

    // Overflow test, IV: 00 00 00 00 00 00 00 00 ff ff ff ff ff ff ff ff 
    for (int i = 0; i < 8; i++) {
        initIV[8 + i] = (byte) 0xff;
    }

    for (long j = 0; j < counter; j++) {
        assertIVCalculation(codec, initIV, j, IV);
    }

    // Random IV and counter sequence test
    for (long i = 0; i < iterations; i++) {
        sr.nextBytes(initIV);

        for (long j = 0; j < counter; j++) {
            assertIVCalculation(codec, initIV, j, IV);
        }
    }

    // Random IV and random counter test
    for (long i = 0; i < iterations; i++) {
        sr.nextBytes(initIV);

        for (long j = 0; j < counter; j++) {
            long c = sr.nextLong();
            assertIVCalculation(codec, initIV, c, IV);
        }
    }
}

---

From source file:tv.ouya.sdk.TestOuyaFacade.java

public void requestPurchase(final Product product)
        throws GeneralSecurityException, UnsupportedEncodingException, JSONException {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    // This is an ID that allows you to associate a successful purchase with
    // it's original request. The server does nothing with this string except
    // pass it back to you, so it only needs to be unique within this instance
    // of your app to allow you to pair responses with requests.
    String uniqueId = Long.toHexString(sr.nextLong());

    JSONObject purchaseRequest = new JSONObject();
    purchaseRequest.put("uuid", uniqueId);
    purchaseRequest.put("identifier", product.getIdentifier());
    purchaseRequest.put("testing", "true"); // This value is only needed for testing, not setting it results in a live purchase
    String purchaseRequestJson = purchaseRequest.toString();

    byte[] keyBytes = new byte[16];
    sr.nextBytes(keyBytes);// w  ww . j a  v  a 2 s. co  m
    SecretKey key = new SecretKeySpec(keyBytes, "AES");

    byte[] ivBytes = new byte[16];
    sr.nextBytes(ivBytes);
    IvParameterSpec iv = new IvParameterSpec(ivBytes);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    byte[] payload = cipher.doFinal(purchaseRequestJson.getBytes("UTF-8"));

    cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, mPublicKey);
    byte[] encryptedKey = cipher.doFinal(keyBytes);

    Purchasable purchasable = new Purchasable(product.getIdentifier(),
            Base64.encodeToString(encryptedKey, Base64.NO_WRAP), Base64.encodeToString(ivBytes, Base64.NO_WRAP),
            Base64.encodeToString(payload, Base64.NO_WRAP));

    synchronized (mOutstandingPurchaseRequests) {
        mOutstandingPurchaseRequests.put(uniqueId, product);
    }

    //custom-iap-code
    Log.i("TestOuyaFacade", "TestOuyaFacade.requestPurchase(" + product.getIdentifier() + ")");
    UnityPlayer.UnitySendMessage("OuyaGameObject", "DebugLog",
            "TestOuyaFacade.requestPurchase(" + product.getIdentifier() + ")");

    ouyaFacade.requestPurchase(purchasable, new PurchaseListener(product));
}

---

From source file:tv.ouya.sdk.UnityOuyaFacade.java

public void requestPurchase(final Product product)
        throws GeneralSecurityException, UnsupportedEncodingException, JSONException {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    // This is an ID that allows you to associate a successful purchase with
    // it's original request. The server does nothing with this string except
    // pass it back to you, so it only needs to be unique within this instance
    // of your app to allow you to pair responses with requests.
    String uniqueId = Long.toHexString(sr.nextLong());

    JSONObject purchaseRequest = new JSONObject();
    purchaseRequest.put("uuid", uniqueId);
    purchaseRequest.put("identifier", product.getIdentifier());
    purchaseRequest.put("testing", "true"); // This value is only needed for testing, not setting it results in a live purchase
    String purchaseRequestJson = purchaseRequest.toString();

    byte[] keyBytes = new byte[16];
    sr.nextBytes(keyBytes);/*from w ww.  ja v a 2  s  .  c  om*/
    SecretKey key = new SecretKeySpec(keyBytes, "AES");

    byte[] ivBytes = new byte[16];
    sr.nextBytes(ivBytes);
    IvParameterSpec iv = new IvParameterSpec(ivBytes);

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    byte[] payload = cipher.doFinal(purchaseRequestJson.getBytes("UTF-8"));

    cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, mPublicKey);
    byte[] encryptedKey = cipher.doFinal(keyBytes);

    Purchasable purchasable = new Purchasable(product.getIdentifier(),
            Base64.encodeToString(encryptedKey, Base64.NO_WRAP), Base64.encodeToString(ivBytes, Base64.NO_WRAP),
            Base64.encodeToString(payload, Base64.NO_WRAP));

    synchronized (mOutstandingPurchaseRequests) {
        mOutstandingPurchaseRequests.put(uniqueId, product);
    }

    //custom-iap-code
    Log.i(LOG_TAG, "UnityOuyaFacade.requestPurchase(" + product.getIdentifier() + ")");
    UnityPlayer.UnitySendMessage("OuyaGameObject", "DebugLog",
            "UnityOuyaFacade.requestPurchase(" + product.getIdentifier() + ")");

    ouyaFacade.requestPurchase(purchasable, new PurchaseListener(product));
}

---

From source file:com.goodhustle.ouyaunitybridge.OuyaUnityActivity.java

public void requestPurchase(final String productId)
        throws GeneralSecurityException, UnsupportedEncodingException, JSONException {
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");

    // This is an ID that allows you to associate a successful purchase with
    // it's original request. The server does nothing with this string except
    // pass it back to you, so it only needs to be unique within this instance
    // of your app to allow you to pair responses with requests.
    String uniqueId = Long.toHexString(sr.nextLong());
    JSONObject purchaseRequest = new JSONObject();
    purchaseRequest.put("uuid", uniqueId);
    purchaseRequest.put("identifier", productId);
    purchaseRequest.put("testing", "true"); // This value is only needed for testing, not setting it results in a live purchase
    String purchaseRequestJson = purchaseRequest.toString();
    byte[] keyBytes = new byte[16];
    sr.nextBytes(keyBytes);//ww w.  ja  va2  s  .  c  om
    SecretKey key = new SecretKeySpec(keyBytes, "AES");
    byte[] ivBytes = new byte[16];
    sr.nextBytes(ivBytes);
    IvParameterSpec iv = new IvParameterSpec(ivBytes);
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    byte[] payload = cipher.doFinal(purchaseRequestJson.getBytes("UTF-8"));
    cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "BC");
    cipher.init(Cipher.ENCRYPT_MODE, mPublicKey);
    byte[] encryptedKey = cipher.doFinal(keyBytes);
    Purchasable purchasable = new Purchasable(productId, Base64.encodeToString(encryptedKey, Base64.NO_WRAP),
            Base64.encodeToString(ivBytes, Base64.NO_WRAP), Base64.encodeToString(payload, Base64.NO_WRAP));
    synchronized (mOutstandingPurchaseRequests) {
        mOutstandingPurchaseRequests.put(uniqueId, productId);
    }
    ouyaFacade.requestPurchase(purchasable, new PurchaseListener(productId));
}

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