Example usage for java.security KeyPairGenerator getInstance

Introduction

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

Prototype

public static KeyPairGenerator getInstance(String algorithm) throws NoSuchAlgorithmException

Source Link

Document

Returns a KeyPairGenerator object that generates public/private key pairs for the specified algorithm.

Usage

From source file:net.solarnetwork.node.setup.test.DefaultKeystoreServiceTest.java

@BeforeClass
public static void setupClass() throws Exception {
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
    keyGen.initialize(2048, new SecureRandom());
    CA_KEY_PAIR = keyGen.generateKeyPair();
    CA_CERT = PKITestUtils.generateNewCACert(CA_KEY_PAIR.getPublic(), TEST_CA_DN, null,
            CA_KEY_PAIR.getPrivate(), TEST_CA_DN);

    CA_SUB_KEY_PAIR = keyGen.generateKeyPair();
    CA_SUB_CERT = PKITestUtils.generateNewCACert(CA_SUB_KEY_PAIR.getPublic(), TEST_CA_SUB_DN, CA_CERT,
            CA_KEY_PAIR.getPrivate(), TEST_CA_DN);
}

From source file:org.wso2.carbon.certificate.mgt.core.util.CSRGenerator.java

/**
 * Generate the desired keypair/*w ww . j  a v  a 2 s .co m*/
 *
 * @param alg
 * @param keySize
 * @return
 */
public KeyPair generateKeyPair(String alg, int keySize) {
    try {
        KeyPairGenerator keyPairGenerator = null;
        keyPairGenerator = KeyPairGenerator.getInstance(alg);
        keyPairGenerator.initialize(keySize);
        return keyPairGenerator.generateKeyPair();
    } catch (NoSuchAlgorithmException e) {
        log.error("The provided algorithm is not found ", e);
    }
    return null;
}

From source file:gemlite.core.util.RSAUtils.java

/**
 * <p>/*from   w ww.j av  a2  s .  c  o m*/
 * ?(?)
 * </p>
 * 
 * @return
 * @throws Exception
 */
public static Map<String, Object> genKeyPair() throws Exception {
    KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
    keyPairGen.initialize(512);
    KeyPair keyPair = keyPairGen.generateKeyPair();
    RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
    RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
    Map<String, Object> keyMap = new HashMap<String, Object>(2);
    keyMap.put(PUBLIC_KEY, publicKey);
    keyMap.put(PRIVATE_KEY, privateKey);
    return keyMap;
}

From source file:jenkins.security.RSAConfidentialKey.java

/**
 * Obtains the private key (lazily.)/* www .j  a  v  a2s.com*/
 * <p>
 * This method is not publicly exposed as per the design principle of {@link ConfidentialKey}.
 * Instead of exposing private key, define methods that use them in specific way, such as
 * {@link RSADigitalSignatureConfidentialKey}.
 *
 * @throws Error
 *      If key cannot be loaded for some reasons, we fail.
 */
protected synchronized RSAPrivateKey getPrivateKey() {
    try {
        if (priv == null) {
            byte[] payload = load();
            if (payload == null) {
                KeyPairGenerator gen = KeyPairGenerator.getInstance("RSA");
                gen.initialize(2048, new SecureRandom()); // going beyond 2048 requires crypto extension
                KeyPair keys = gen.generateKeyPair();
                priv = (RSAPrivateKey) keys.getPrivate();
                pub = (RSAPublicKey) keys.getPublic();
                store(priv.getEncoded());
            } else {
                KeyFactory keyFactory = KeyFactory.getInstance("RSA");
                priv = (RSAPrivateKey) keyFactory.generatePrivate(new PKCS8EncodedKeySpec(payload));

                RSAPrivateCrtKey pks = (RSAPrivateCrtKey) priv;
                pub = (RSAPublicKey) keyFactory
                        .generatePublic(new RSAPublicKeySpec(pks.getModulus(), pks.getPublicExponent()));
            }
        }
        return priv;
    } catch (IOException e) {
        throw new Error("Failed to load the key: " + getId(), e);
    } catch (GeneralSecurityException e) {
        throw new Error("Failed to load the key: " + getId(), e);
    }
}

From source file:org.candlepin.util.X509CRLEntryStreamTest.java

@Before
public void setUp() throws Exception {
    URL url = X509CRLEntryStreamTest.class.getClassLoader().getResource("crl.der");
    derFile = new File(url.getFile());

    url = X509CRLEntryStreamTest.class.getClassLoader().getResource("crl.pem");
    pemFile = new File(url.getFile());

    issuer = new X500Name("CN=Test Issuer");

    KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA");

    generator.initialize(2048);//from ww w  .jav  a  2 s .c o m
    keyPair = generator.generateKeyPair();

    signer = new JcaContentSignerBuilder("SHA256WithRSAEncryption").setProvider(BC).build(keyPair.getPrivate());
}

From source file:net.nicholaswilliams.java.licensing.encryption.TestKeyFileUtilities.java

@Test
public void testPrivateKeyEncryption01() throws Throwable {
    File file = new File("testPrivateKeyEncryption01.key");

    if (file.exists())
        FileUtils.forceDelete(file);/*from ww  w .j a v  a2s . c  om*/

    PrivateKey privateKey = KeyPairGenerator.getInstance(KeyFileUtilities.keyAlgorithm).generateKeyPair()
            .getPrivate();

    KeyFileUtilities.writeEncryptedPrivateKey(privateKey, file, "myTestPassword01".toCharArray());

    PrivateKey privateKey2 = KeyFileUtilities.readEncryptedPrivateKey(file, "myTestPassword01".toCharArray());

    assertNotNull("The key should not be null.", privateKey2);
    assertFalse("The objects should not be the same.", privateKey == privateKey2);
    assertEquals("The keys should be the same.", privateKey, privateKey2);

    FileUtils.forceDelete(file);
}

From source file:com.turo.pushy.apns.ApnsClientBenchmark.java

@Setup
public void setUp() throws Exception {
    this.eventLoopGroup = new NioEventLoopGroup(2);

    final ApnsSigningKey signingKey;
    {//from w  ww. j a  v  a 2s. com
        final KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC");
        final SecureRandom random = SecureRandom.getInstance("SHA1PRNG");

        keyPairGenerator.initialize(256, random);

        signingKey = new ApnsSigningKey(KEY_ID, TEAM_ID,
                (ECPrivateKey) keyPairGenerator.generateKeyPair().getPrivate());
    }

    final ApnsClientBuilder clientBuilder = new ApnsClientBuilder().setApnsServer(HOST, PORT)
            .setConcurrentConnections(this.concurrentConnections).setSigningKey(signingKey)
            .setTrustedServerCertificateChain(
                    ApnsClientBenchmark.class.getResourceAsStream(CA_CERTIFICATE_FILENAME))
            .setEventLoopGroup(this.eventLoopGroup);

    this.client = clientBuilder.build();
    this.server = new BenchmarkApnsServer(
            ApnsClientBenchmark.class.getResourceAsStream(SERVER_CERTIFICATES_FILENAME),
            ApnsClientBenchmark.class.getResourceAsStream(SERVER_KEY_FILENAME), this.eventLoopGroup);

    final String token = generateRandomToken();

    this.pushNotifications = new ArrayList<>(this.notificationCount);

    final ApnsPayloadBuilder payloadBuilder = new ApnsPayloadBuilder();

    for (int i = 0; i < this.notificationCount; i++) {
        final String payload = payloadBuilder
                .setAlertBody(RandomStringUtils.randomAlphanumeric(MESSAGE_BODY_LENGTH))
                .buildWithDefaultMaximumLength();

        this.pushNotifications.add(new SimpleApnsPushNotification(token, TOPIC, payload));
    }

    this.server.start(PORT).await();
}

From source file:org.demosoft.medieval.life.loginserver.LoginController.java

private LoginController() throws GeneralSecurityException {
    _log.info("Loading LoginContoller...");

    _keyPairs = new ScrambledKeyPair[10];

    KeyPairGenerator keygen = null;

    keygen = KeyPairGenerator.getInstance("RSA");
    RSAKeyGenParameterSpec spec = new RSAKeyGenParameterSpec(1024, RSAKeyGenParameterSpec.F4);
    keygen.initialize(spec);//  ww  w.ja  va  2s.co m

    // generate the initial set of keys
    for (int i = 0; i < 10; i++) {
        _keyPairs[i] = new ScrambledKeyPair(keygen.generateKeyPair());
    }
    _log.info("Cached 10 KeyPairs for RSA communication");

    testCipher((RSAPrivateKey) _keyPairs[0]._pair.getPrivate());

    // Store keys for blowfish communication
    generateBlowFishKeys();
}

From source file:mitm.common.security.ca.handlers.comodo.ApplyCustomClientCertTest.java

private KeyPair generateKeyPair() throws NoSuchAlgorithmException {
    return KeyPairGenerator.getInstance("RSA").generateKeyPair();
}

From source file:com.leclercb.commons.api.license.LicenseManager.java

public static KeyPair generateKeys(String algorithm, int keySize) throws NoSuchAlgorithmException {
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(algorithm);
    keyGen.initialize(keySize);//from ww w.  ja  v a2s  .  c o m

    return keyGen.genKeyPair();
}