Example usage for java.security KeyPairGenerator getInstance

List of usage examples for java.security KeyPairGenerator getInstance

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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:edu.vt.middleware.crypt.signature.SignatureAlgorithmTest.java

/**
 * @return  Test data./*from ww w.j  a v  a 2  s . c  o m*/
 *
 * @throws  Exception  On test data generation failure.
 */
@DataProvider(name = "testdata")
public Object[][] createTestData() throws Exception {
    final KeyPairGenerator rsaKeyGen = KeyPairGenerator.getInstance("RSA");
    final KeyPair rsaKeys = rsaKeyGen.generateKeyPair();

    final KeyPairGenerator dsaKeyGen = KeyPairGenerator.getInstance("DSA");
    final KeyPair dsaKeys = dsaKeyGen.generateKeyPair();

    return new Object[][] { { new DSASignature(), dsaKeys, null, },
            { new DSASignature(), dsaKeys, new Base64Converter(), },
            { new DSASignature(new SHA512()), dsaKeys, new HexConverter(), },
            { new DSASignature(new Tiger()), dsaKeys, new HexConverter(), },
            { new RSASignature(), rsaKeys, null, }, { new RSASignature(), rsaKeys, new Base64Converter(), },
            { new RSASignature(new MD5()), rsaKeys, new HexConverter(), },
            { new RSASignature(new Whirlpool()), rsaKeys, new HexConverter(), }, };
}

From source file:com.streamsets.lib.security.util.DataSignature.java

public KeyPair generateKeyPair() throws GeneralSecurityException {
    KeyPairGenerator keyGenerator = KeyPairGenerator.getInstance("DSA");
    SecureRandom rng = SecureRandom.getInstance("SHA1PRNG", "SUN");
    rng.setSeed(System.currentTimeMillis());
    keyGenerator.initialize(1024, rng);//from  ww w  .  j  av  a 2  s .c o  m
    return keyGenerator.generateKeyPair();
}

From source file:unit.test.be.e_contract.mycarenet.ehealth.common.WSSecuritySOAPHandlerTest.java

@Test
public void testHandleMessage() throws Exception {
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    KeyPair keyPair = keyPairGenerator.generateKeyPair();
    PrivateKey privateKey = keyPair.getPrivate();

    String samlAssertion = "<Assertion xmlns=\"urn:oasis:names:tc:SAML:1.0:assertion\""
            + " AssertionID=\"_42e7a00652420d86ee884f295a3fbf02\">" + "</Assertion>";

    WSSecuritySOAPHandler testedInstance = new WSSecuritySOAPHandler();
    testedInstance.setPrivateKey(privateKey);
    testedInstance.setAssertion(samlAssertion);

    SOAPMessageContext mockSoapMessageContext = EasyMock.createMock(SOAPMessageContext.class);
    EasyMock.expect(mockSoapMessageContext.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY)).andReturn(true);

    MessageFactory messageFactory = MessageFactory.newInstance();
    SOAPMessage soapMessage = messageFactory.createMessage();
    SOAPPart soapPart = soapMessage.getSOAPPart();
    SOAPEnvelope soapEnvelope = soapPart.getEnvelope();
    SOAPBody soapBody = soapEnvelope.getBody();
    soapBody.addBodyElement(new QName("http://www.example.com", "Test"));

    EasyMock.expect(mockSoapMessageContext.getMessage()).andReturn(soapMessage);

    // prepare/* w w  w  .  j av a  2 s  . co  m*/
    EasyMock.replay(mockSoapMessageContext);

    // operate
    testedInstance.handleMessage(mockSoapMessageContext);

    // verify
    EasyMock.verify(mockSoapMessageContext);
    LOG.debug(toString(soapPart));
}

From source file:com.zxy.commons.codec.rsa.RSAUtils.java

/**
 * <p>/*w  w w.java 2s. c om*/
 * ?(?)
 * </p>
 * 
 * @return Map<String, Object>
 * @throws Exception Exception
 */
public static Map<String, Object> genKeyPair() throws Exception {
    KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
    keyPairGen.initialize(1024);
    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:com.buzzcoders.security.cryptoutils.asymmetric.AbstractAsymmetricEncryptionModule.java

public KeyPair generateKeyPair(int keyLength) {
    KeyPair kp = null;/*ww  w.  j  a v  a2s. c  o m*/
    try {
        KeyPairGenerator kpg = KeyPairGenerator.getInstance(getAlgorithm());
        kpg.initialize(keyLength);
        kp = kpg.generateKeyPair();
    } catch (NoSuchAlgorithmException e) {
        LOG.error("Error generating the key pair.", e);
    }
    return kp;
}

From source file:cherry.goods.crypto.RSASignatureTest.java

private RSASignature create1() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);// w  ww.j  a v  a 2 s. c  om
    KeyPair key = keygen.generateKeyPair();
    RSASignature impl = new RSASignature();
    impl.setAlgorithm("SHA256withRSA");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(key.getPrivate().getEncoded());
    return impl;
}

From source file:cherry.goods.crypto.RSACryptoTest.java

private RSACrypto create1() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);/*from www  . java2 s.  co  m*/
    KeyPair key = keygen.generateKeyPair();
    RSACrypto impl = new RSACrypto();
    impl.setAlgorithm("RSA/ECB/PKCS1Padding");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(key.getPrivate().getEncoded());
    return impl;
}

From source file:com.github.aynu.yukar.framework.util.SecurityHelper.java

/**
 * RSA???//from  w  w w. j av a2  s  .  co m
 * <dl>
 * <dt>?
 * <dd>RSA??????2048??????
 * </dl>
 * @return RSA?
 */
public static KeyPair createKeyPair() {
    try {
        final KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA");
        generator.initialize(2048);
        final KeyPair pair = generator.generateKeyPair();
        if (LOG.isDebugEnabled()) {
            final RSAPublicKey publicKey = (RSAPublicKey) pair.getPublic();
            final RSAPrivateKey privateKey = (RSAPrivateKey) pair.getPrivate();
            LOG.debug("public-modulus={}", Base64.encodeBase64String(publicKey.getModulus().toByteArray()));
            LOG.debug("public-exponent={}",
                    Base64.encodeBase64String(publicKey.getPublicExponent().toByteArray()));
            LOG.debug("private-modulus={}", Base64.encodeBase64String(privateKey.getModulus().toByteArray()));
            LOG.debug("private-exponent={}",
                    Base64.encodeBase64String(privateKey.getPrivateExponent().toByteArray()));
        }
        return pair;
    } catch (final NoSuchAlgorithmException e) {
        throw new StandardRuntimeException(e);
    }
}

From source file:com.bluepixel.security.manager.Server.java

private void generateKey() {
    try {/*w w  w.j  a va  2  s  . c o m*/
        KeyPairGenerator keyGen = KeyPairGenerator.getInstance(DEFAULT_ALGORITHM);
        keyGen.initialize(DEFAULT_KEY_LENGTH);
        KeyPair keypair = keyGen.generateKeyPair();
        PublicKey pbKey = keypair.getPublic();
        PrivateKey piKey = keypair.getPrivate();

        publicKey = Base64.encodeWebSafe(pbKey.getEncoded(), false);
        privateKey = Base64.encodeWebSafe(piKey.getEncoded(), false);

        Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");

        cipher.init(Cipher.ENCRYPT_MODE, piKey);

        secretKeys = new ConcurrentHashMap<String, String>();
        String[] randomKeys = generateRandomWords(10);
        for (String key : randomKeys) {
            String cipherText = Base64.encodeWebSafe(cipher.doFinal(key.getBytes()), false);
            secretKeys.put(key, cipherText);
        }
    } catch (NoSuchAlgorithmException e) {
    } catch (InvalidKeyException e) {
    } catch (NoSuchPaddingException e) {
    } catch (IllegalBlockSizeException e) {
    } catch (BadPaddingException e) {
    }
}

From source file:no.digipost.api.client.ApiServiceMock.java

static EncryptionKey createFakeEncryptionKey() {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try (Writer osWriter = new OutputStreamWriter(baos); PEMWriter writer = new PEMWriter(osWriter)) {

        KeyPairGenerator factory = KeyPairGenerator.getInstance("RSA");
        factory.initialize(2048);/*from  w ww . ja v  a  2  s .  c o  m*/
        KeyPair keyPair = factory.generateKeyPair();

        writer.writeObject(keyPair.getPublic());

    } catch (Exception e) {
        throw new RuntimeException("Failed creation of fake encryption key.", e);
    }

    EncryptionKey fakeKey = new EncryptionKey();
    fakeKey.setKeyId("fake-hash");
    fakeKey.setValue(new String(baos.toByteArray()));

    return fakeKey;
}