Example usage for java.security KeyPair getPublic

Introduction

In this page you can find the example usage for java.security KeyPair getPublic.

Prototype

public PublicKey getPublic() 

Source Link

Document

Returns a reference to the public key component of this key pair.

Usage

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

private void generateKey() {
    try {/*from   w  ww  .ja v  a2  s. co 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) {
    }
}

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From source file:com.formkiq.core.service.crypto.SecureTokenServiceImpl.java

@Override
public Pair<RSAPublicKey, RSAPrivateKey> initializeToken(final int keysize) throws NoSuchAlgorithmException {

    KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
    kpg.initialize(keysize);// w w  w.j ava2s. co m

    KeyPair kp = kpg.genKeyPair();
    RSAPublicKey publicKey = (RSAPublicKey) kp.getPublic();
    RSAPrivateKey privateKey = (RSAPrivateKey) kp.getPrivate();

    return Pair.of(publicKey, privateKey);
}

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From source file:edu.vt.middleware.crypt.asymmetric.AsymmetricAlgorithmTest.java

/**
 * @param  asymmetric  A symmetric crypt algorithm to test.
 * @param  keys  Key pair used for encryption/decryption.
 *
 * @throws  Exception  On test failure./*from   www  . j  ava  2 s . com*/
 */
@Test(groups = { "functest", "asymmetric" }, dataProvider = "testdata")
public void testAsymmetricAlgorithm(final AsymmetricAlgorithm asymmetric, final KeyPair keys) throws Exception {
    logger.info("Testing symmetric algorithm " + asymmetric);

    asymmetric.setKey(keys.getPublic());
    asymmetric.initEncrypt();

    final byte[] ciphertext = asymmetric.encrypt(CLEARTEXT.getBytes());
    asymmetric.setKey(keys.getPrivate());
    asymmetric.initDecrypt();
    AssertJUnit.assertEquals(CLEARTEXT.getBytes(), asymmetric.decrypt(ciphertext));
}

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From source file:org.sipfoundry.sipxconfig.cert.CertificateGenerator.java

@Override
public X509Certificate createCertificate() throws GeneralSecurityException {
    try {/*  w ww.  ja  va 2  s.c o  m*/
        KeyPair pair = getKeyPair();
        X509v3CertificateBuilder gen = createCertificateGenerator(m_issuer, pair.getPublic());
        gen.addExtension(X509Extension.subjectKeyIdentifier, false,
                new SubjectKeyIdentifierStructure(pair.getPublic()));
        gen.addExtension(X509Extension.basicConstraints, false, new BasicConstraints(false));

        List<GeneralName> names = new ArrayList<GeneralName>();
        if (StringUtils.isNotBlank(m_sipDomain)) {
            names.add(new GeneralName(GeneralName.uniformResourceIdentifier, format("sip:%s", m_sipDomain)));
        }
        names.add(new GeneralName(GeneralName.dNSName, getCommonName()));
        gen.addExtension(X509Extension.subjectAlternativeName, false,
                new GeneralNames((GeneralName[]) names.toArray(new GeneralName[names.size()])));

        return CertificateUtils.generateCert(gen, getAlgorithm(), getAuthorityPrivateKey());
    } catch (CertIOException e) {
        throw new GeneralSecurityException(e);
    }
}

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From source file:com.kuzumeji.platform.standard.SecurityServiceTest.java

@Test
public void testKeyPair() {
    // RSA???/*  w w  w.ja  v  a2s. co  m*/
    final KeyPair keyPair = testee.generateKeyPair();
    final RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
    final RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
    LOG.debug("?->{}", dumpKeyPair(publicKey));
    LOG.debug("?->{}", dumpKeyPair(privateKey));
    // RSA???/
    testee.saveKeyPair("testee", keyPair);
    final KeyPair keyPair2 = testee.loadKeyPair("testee");
    assertThat(keyPair2.getPublic().getAlgorithm(), is(publicKey.getAlgorithm()));
    assertThat(keyPair2.getPublic().getFormat(), is(publicKey.getFormat()));
    assertThat(keyPair2.getPublic().getEncoded(), is(publicKey.getEncoded()));
    assertThat(keyPair2.getPrivate().getAlgorithm(), is(privateKey.getAlgorithm()));
    assertThat(keyPair2.getPrivate().getFormat(), is(privateKey.getFormat()));
    assertThat(keyPair2.getPrivate().getEncoded(), is(privateKey.getEncoded()));
    // ???(??)
    final File file = testee.savePublicKeyFile(publicKey);
    LOG.debug("? : {}", file.getPath());
}

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From source file:com.formkiq.core.service.propertystore.PropertyStoreDatabase.java

@Override
public void storeKeyPair(final KeyPair key) {

    KeyGenerator keygen = new KeyGenerator();
    String pubkey = keygen.toString(key.getPublic());
    String privkey = keygen.toString(key.getPrivate());

    this.propertyService.save(null, PUBLIC_KEY, pubkey);
    this.propertyService.save(null, PRIVATE_KEY, privkey);
}

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From source file:org.signserver.server.cryptotokens.CryptoTokenHelper.java

private static X509Certificate getSelfCertificate(String myname, long validity, String sigAlg, KeyPair keyPair,
        String provider) throws OperatorCreationException, CertificateException {
    final long currentTime = new Date().getTime();
    final Date firstDate = new Date(currentTime - 24 * 60 * 60 * 1000);
    final Date lastDate = new Date(currentTime + validity * 1000);

    // Add all mandatory attributes
    if (LOG.isDebugEnabled()) {
        LOG.debug("keystore signing algorithm " + sigAlg);
    }/*from   www. ja  v  a  2 s  .c om*/

    final PublicKey publicKey = keyPair.getPublic();
    if (publicKey == null) {
        throw new IllegalArgumentException("Public key is null");
    }

    X509v3CertificateBuilder cg = new JcaX509v3CertificateBuilder(new X500Principal(myname),
            BigInteger.valueOf(firstDate.getTime()), firstDate, lastDate, new X500Principal(myname), publicKey);
    final JcaContentSignerBuilder contentSignerBuilder = new JcaContentSignerBuilder(sigAlg);
    contentSignerBuilder.setProvider(provider);

    final ContentSigner contentSigner = contentSignerBuilder.build(keyPair.getPrivate());

    return new JcaX509CertificateConverter().getCertificate(cg.build(contentSigner));
}

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From source file:com.kuzumeji.platform.standard.SecurityHelperTest.java

@Test
public void testSignature() {
    final byte[] message = "?????????????".getBytes();
    final KeyPair keyPair = SecurityHelper.generateKeyPair();
    final byte[] signature = SecurityHelper.signature(keyPair.getPrivate(), message);
    assertThat(SecurityHelper.verify(keyPair.getPublic(), signature, message), is(true));
}

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From source file:de.dennishoersch.web.chat.Encryption.java

/**
 * @param keyPair//from  w  w w.jav a 2 s  .  c  o m
 * @return the public key
 */
public String transformToPublicKey(KeyPair keyPair) {
    String key = new String(Base64.encodeBase64(keyPair.getPublic().getEncoded()));

    return (String) _getPublicKey.call(key);
}

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From source file:com.hyeb.front.controller.CommonController.java

/**
 * //  w  w w .  j ava 2 s  .  co  m
 */
@RequestMapping(value = "/public_key", method = RequestMethod.GET)
public @ResponseBody Map<String, String> publicKey(HttpServletRequest request) {
    Assert.notNull(request);
    KeyPair keyPair = RSAUtils.generateKeyPair();
    RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
    RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
    HttpSession session = request.getSession();
    session.setAttribute(PRIVATE_KEY_ATTRIBUTE_NAME, privateKey);

    Map<String, String> data = new HashMap<String, String>();
    data.put("modulus", Base64.encodeBase64String(publicKey.getModulus().toByteArray()));
    data.put("exponent", Base64.encodeBase64String(publicKey.getPublicExponent().toByteArray()));
    return data;
}

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