Examples with KeyGenerator javax.crypto.KeyGenerator used on opensource projects

Example 6 with KeyGenerator

use of javax.crypto.KeyGenerator in project hadoop by apache.

the class TestCredentials method testReadWriteStorage.

@SuppressWarnings("unchecked")
@Test
public <T extends TokenIdentifier> void testReadWriteStorage() throws IOException, NoSuchAlgorithmException {
    // create tokenStorage Object
    Credentials ts = new Credentials();
    Token<T> token1 = new Token();
    Token<T> token2 = new Token();
    Text service1 = new Text("service1");
    Text service2 = new Text("service2");
    Collection<Text> services = new ArrayList<Text>();
    services.add(service1);
    services.add(service2);
    token1.setService(service1);
    token2.setService(service2);
    ts.addToken(new Text("sometoken1"), token1);
    ts.addToken(new Text("sometoken2"), token2);
    // create keys and put it in
    final KeyGenerator kg = KeyGenerator.getInstance(DEFAULT_HMAC_ALGORITHM);
    String alias = "alias";
    Map<Text, byte[]> m = new HashMap<Text, byte[]>(10);
    for (int i = 0; i < 10; i++) {
        Key key = kg.generateKey();
        m.put(new Text(alias + i), key.getEncoded());
        ts.addSecretKey(new Text(alias + i), key.getEncoded());
    }
    // create file to store
    File tmpFileName = new File(tmpDir, "tokenStorageTest");
    DataOutputStream dos = new DataOutputStream(new FileOutputStream(tmpFileName));
    ts.write(dos);
    dos.close();
    // open and read it back
    DataInputStream dis = new DataInputStream(new FileInputStream(tmpFileName));
    ts = new Credentials();
    ts.readFields(dis);
    dis.close();
    // get the tokens and compare the services
    Collection<Token<? extends TokenIdentifier>> list = ts.getAllTokens();
    assertEquals("getAllTokens should return collection of size 2", list.size(), 2);
    boolean foundFirst = false;
    boolean foundSecond = false;
    for (Token<? extends TokenIdentifier> token : list) {
        if (token.getService().equals(service1)) {
            foundFirst = true;
        }
        if (token.getService().equals(service2)) {
            foundSecond = true;
        }
    }
    assertTrue("Tokens for services service1 and service2 must be present", foundFirst && foundSecond);
    // compare secret keys
    int mapLen = m.size();
    assertEquals("wrong number of keys in the Storage", mapLen, ts.numberOfSecretKeys());
    for (Text a : m.keySet()) {
        byte[] kTS = ts.getSecretKey(a);
        byte[] kLocal = m.get(a);
        assertTrue("keys don't match for " + a, WritableComparator.compareBytes(kTS, 0, kTS.length, kLocal, 0, kLocal.length) == 0);
    }
    tmpFileName.delete();
}

Example 7 with KeyGenerator

use of javax.crypto.KeyGenerator in project storm by apache.

the class BlowfishTupleSerializer method main.

/**
     * Produce a blowfish key to be used in "Storm jar" command
     */
public static void main(String[] args) {
    try {
        KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
        SecretKey skey = kgen.generateKey();
        byte[] raw = skey.getEncoded();
        String keyString = new String(Hex.encodeHex(raw));
        System.out.println("storm -c " + SECRET_KEY + "=" + keyString + " -c " + Config.TOPOLOGY_TUPLE_SERIALIZER + "=" + BlowfishTupleSerializer.class.getName() + " ...");
    } catch (Exception ex) {
        LOG.error(ex.getMessage());
        ex.printStackTrace();
    }
}

Example 8 with KeyGenerator

use of javax.crypto.KeyGenerator in project sonarqube by SonarSource.

the class AesCipher method generateRandomSecretKey.

String generateRandomSecretKey() {
    try {
        KeyGenerator keyGen = KeyGenerator.getInstance(CRYPTO_KEY);
        keyGen.init(KEY_SIZE_IN_BITS, new SecureRandom());
        SecretKey secretKey = keyGen.generateKey();
        return Base64.encodeBase64String(secretKey.getEncoded());
    } catch (Exception e) {
        throw new IllegalStateException("Fail to generate secret key", e);
    }
}

Example 9 with KeyGenerator

use of javax.crypto.KeyGenerator in project RxCache by VictorAlbertos.

the class BuiltInEncryptor method generateSecretKey.

private SecretKeySpec generateSecretKey(String key) throws Exception {
    SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
    secureRandom.setSeed(key.getBytes("UTF-8"));
    KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
    keyGenerator.init(KEY_LENGTH, secureRandom);
    SecretKey secretKey = keyGenerator.generateKey();
    return new SecretKeySpec(secretKey.getEncoded(), "AES");
}

Example 10 with KeyGenerator

use of javax.crypto.KeyGenerator in project Android-Terminal-Emulator by jackpal.

the class ShortcutEncryption method generateKeys.

/**
     * Generates new secret keys suitable for the encryption scheme described
     * above.
     *
     * @throws GeneralSecurityException if an error occurs during key generation.
     */
public static Keys generateKeys() throws GeneralSecurityException {
    KeyGenerator gen = KeyGenerator.getInstance(ENC_ALGORITHM);
    gen.init(KEYLEN);
    SecretKey encKey = gen.generateKey();
    /* XXX: It's probably unnecessary to create a different keygen for the
         * MAC, but JCA's API design suggests we should just in case ... */
    gen = KeyGenerator.getInstance(MAC_ALGORITHM);
    gen.init(KEYLEN);
    SecretKey macKey = gen.generateKey();
    return new Keys(encKey, macKey);
}