Example usage for java.security KeyPair getPrivate

Introduction

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

Prototype

public PrivateKey getPrivate() 

Source Link

Document

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

Usage

From source file:org.candlepin.CRLWriteBenchmark.java

@Setup(Level.Trial)
public void buildMassiveCRL() throws Exception {
    issuer = new X500Name("CN=Test Issuer");

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

    generator.initialize(2048);/*from ww  w.j  ava  2 s  .  co  m*/
    KeyPair keyPair = generator.generateKeyPair();

    bc = new BouncyCastleProvider();
    signer = new JcaContentSignerBuilder("SHA256WithRSAEncryption").setProvider(bc).build(keyPair.getPrivate());

    X509v2CRLBuilder crlBuilder = new X509v2CRLBuilder(issuer, new Date());
    crlBuilder.addExtension(X509Extension.authorityKeyIdentifier, false,
            new AuthorityKeyIdentifierStructure(keyPair.getPublic()));
    /* With a CRL number of 127, incrementing it should cause the number of bytes in the length
     * portion of the TLV to increase by one.*/
    crlBuilder.addExtension(X509Extension.cRLNumber, false, new CRLNumber(new BigInteger("127")));

    for (int i = 0; i < 2000000; i++) {
        crlBuilder.addCRLEntry(new BigInteger(String.valueOf(i)), new Date(), CRLReason.unspecified);
    }

    X509CRLHolder holder = crlBuilder.build(signer);
    X509CRL crl = new JcaX509CRLConverter().setProvider(bc).getCRL(holder);

    crlFile = File.createTempFile("crl", ".der");
    System.out.println("\nWrote test crl to " + crlFile.getAbsolutePath());
    FileUtils.writeByteArrayToFile(crlFile, crl.getEncoded());
}

---

From source file:ie.peternagy.jcrypto.algo.EllipticCurveWrapper.java

/**
 * Generate a set of Elliptic Curve keys
 */// w w  w.j  a  va 2  s.  c  o m
public void generateKeys() {
    tryLoadKeys();
    if (isInitialized(true) && isInitialized(false)) {
        return;
    }

    try {
        ECGenParameterSpec ecGenSpec = new ECGenParameterSpec(EC_CURVE);
        KeyPairGenerator g = KeyPairGenerator.getInstance(ALGORITHM_NAME);
        g.initialize(ecGenSpec, CryptoSecurityUtil.getSecureRandom());
        KeyPair pair = g.generateKeyPair();
        privateKey = pair.getPrivate();
        publicKey = pair.getPublic();

        writeKeys();
    } catch (NoSuchAlgorithmException | InvalidAlgorithmParameterException ex) {
        Logger.getLogger(EllipticCurveWrapper.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:com.titilink.common.app.EncryptDecryptUtil.java

public void testRSA() throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException,
        BadPaddingException, IllegalBlockSizeException, SignatureException {
    ///*from www.jav  a 2  s  .  c o  m*/
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    keyPairGenerator.initialize(1024);
    KeyPair keyPair = keyPairGenerator.generateKeyPair();

    //?
    PublicKey publicKey = keyPair.getPublic();
    PrivateKey privateKey = keyPair.getPrivate();

    //??
    Cipher cipher = Cipher.getInstance("RSA");
    cipher.init(Cipher.ENCRYPT_MODE, privateKey, new SecureRandom());
    byte[] cipherData = cipher
            .doFinal("this is a security text from server".getBytes(Charset.forName("UTF-8")));

    //
    Cipher cipher1 = Cipher.getInstance("RSA");
    cipher1.init(Cipher.DECRYPT_MODE, publicKey, new SecureRandom());
    byte[] plainData = cipher1.doFinal(cipherData);
    System.out.println(new String(plainData, Charset.forName("UTF-8")));

    //???????
    Signature signature = Signature.getInstance("MD5withRSA");
    signature.initSign(privateKey);
    signature.update(cipherData);
    byte[] signData = signature.sign();

    //?????
    Signature signature1 = Signature.getInstance("MD5withRSA");
    signature1.initVerify(publicKey);
    signature1.update(cipherData);
    System.out.println(signature1.verify(signData));

}

---

From source file:org.apache.xml.security.test.signature.XmlSecTest.java

private void checkXmlSignatureSoftwareStack(boolean cert) throws Exception {
    Init.init();//w  w w.ja va2 s  . c  o m
    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    documentBuilderFactory.setNamespaceAware(true);
    DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
    Document testDocument = documentBuilder.newDocument();

    Element rootElement = testDocument.createElementNS("urn:namespace", "tns:document");
    rootElement.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:tns", "urn:namespace");
    testDocument.appendChild(rootElement);
    Element childElement = testDocument.createElementNS("urn:childnamespace", "t:child");
    childElement.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:t", "urn:childnamespace");
    childElement.appendChild(testDocument.createTextNode("hello world"));
    rootElement.appendChild(childElement);

    PrivateKey privateKey = null;
    PublicKey publicKey = null;
    X509Certificate signingCert = null;
    if (cert) {
        // get key & self-signed certificate from keystore
        String fs = System.getProperty("file.separator");
        FileInputStream fis = new FileInputStream(BASEDIR + fs + "data" + fs + "test.jks");
        KeyStore ks = KeyStore.getInstance("JKS");
        ks.load(fis, "changeit".toCharArray());
        signingCert = (X509Certificate) ks.getCertificate("mullan");
        publicKey = signingCert.getPublicKey();
        privateKey = (PrivateKey) ks.getKey("mullan", "changeit".toCharArray());
    } else {
        KeyPair keyPair = KeyPairGenerator.getInstance("DSA").generateKeyPair();
        publicKey = keyPair.getPublic();
        privateKey = keyPair.getPrivate();
    }

    XMLSignature signature = new XMLSignature(testDocument, "", XMLSignature.ALGO_ID_SIGNATURE_DSA,
            Canonicalizer.ALGO_ID_C14N_WITH_COMMENTS);

    Element signatureElement = signature.getElement();
    rootElement.appendChild(signatureElement);

    Transforms transforms = new Transforms(testDocument);
    XPathContainer xpath = new XPathContainer(testDocument);
    xpath.setXPathNamespaceContext("ds", Constants.SignatureSpecNS);
    xpath.setXPath("not(ancestor-or-self::ds:Signature)");
    transforms.addTransform(Transforms.TRANSFORM_XPATH, xpath.getElementPlusReturns());
    transforms.addTransform(Transforms.TRANSFORM_C14N_WITH_COMMENTS);
    signature.addDocument("", transforms, MessageDigestAlgorithm.ALGO_ID_DIGEST_SHA1);

    if (cert) {
        signature.addKeyInfo(signingCert);
    } else {
        signature.addKeyInfo(publicKey);
    }

    Element nsElement = testDocument.createElementNS(null, "nsElement");
    nsElement.setAttributeNS(Constants.NamespaceSpecNS, "xmlns:ds", Constants.SignatureSpecNS);

    signature.sign(privateKey);

    // TransformerFactory tf = TransformerFactory.newInstance();
    // Transformer t = tf.newTransformer();
    // t.transform(new DOMSource(testDocument), new StreamResult(System.out));

    NodeList signatureElems = XPathAPI.selectNodeList(testDocument, "//ds:Signature", nsElement);
    signatureElement = (Element) signatureElems.item(0);
    XMLSignature signatureToVerify = new XMLSignature(signatureElement, "");

    boolean signResult = signatureToVerify.checkSignatureValue(publicKey);

    assertTrue(signResult);
}

---

From source file:cherry.foundation.crypto.RSASignatureSupportTest.java

private RSASignatureSupport createCrypto() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);/*w w w. ja v  a2s  .com*/
    KeyPair key = keygen.generateKeyPair();
    RSASignatureSupport crypto = new RSASignatureSupport();
    crypto.setAlgorithm("SHA256withRSA");
    crypto.setPublicKeyResource(new InMemoryResource(key.getPublic().getEncoded()));
    crypto.setPrivateKeyResource(new InMemoryResource(key.getPrivate().getEncoded()));
    crypto.afterPropertiesSet();
    return crypto;
}

---

From source file:org.apache.directory.server.core.security.CoreKeyStoreSpi.java

@Override
public Key engineGetKey(String alias, char[] password)
        throws NoSuchAlgorithmException, UnrecoverableKeyException {
    LOG.debug("engineGetKey({}, {}) called.", alias, password);

    try {//w w  w .j a va  2s.  c  o  m
        Entry entry = getTlsEntry();
        KeyPair keyPair = TlsKeyGenerator.getKeyPair(entry);
        return keyPair.getPrivate();
    } catch (Exception e) {
        LOG.error(I18n.err(I18n.ERR_68), e);
    }

    return null;
}

---

From source file:cherry.foundation.crypto.RSACryptoSupportTest.java

private RSACryptoSupport createCrypto() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//from www.j  a va  2  s. c  o  m
    KeyPair key = keygen.generateKeyPair();
    RSACryptoSupport crypto = new RSACryptoSupport();
    crypto.setAlgorithm("RSA/ECB/PKCS1Padding");
    crypto.setPublicKeyResource(new InMemoryResource(key.getPublic().getEncoded()));
    crypto.setPrivateKeyResource(new InMemoryResource(key.getPrivate().getEncoded()));
    crypto.afterPropertiesSet();
    return crypto;
}

---

From source file:com.peterphi.std.crypto.keygen.CaHelper.java

/**
 * @param kp//from ww  w  .  j av  a  2  s  . co m
 * @param issuer
 * @param subject
 *
 * @return
 */
public static X509Certificate generateCaCertificate(final String friendlyName, final KeyPair kp,
        final BigInteger serial, final X509Name issuer, final X509Name subject) throws Exception {

    X509Certificate cert = null;

    X509V3CertificateGenerator gen = new X509V3CertificateGenerator();
    gen.setIssuerDN(issuer);
    setNotBeforeNotAfter(gen, 20); // The CA certificate is valid for 20 years
    gen.setSubjectDN(subject);
    gen.setPublicKey(kp.getPublic());
    gen.setSignatureAlgorithm(getSignatureAlgorithm());

    if (serial != null)
        gen.setSerialNumber(serial);
    else
        gen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));

    gen = addCaExtensions(gen, kp.getPublic());
    // gen.addExtension(X509Extensions.SubjectKeyIdentifier, false,
    // new SubjectKeyIdentifierStructure(kp.getPublic()));
    cert = gen.generate(kp.getPrivate(), "BC");

    cert.checkValidity();
    cert.verify(kp.getPublic(), "BC");

    if (friendlyName != null) {
        PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) cert;
        bagAttr.setBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName, new DERBMPString(friendlyName));
    }

    return cert;
}

---

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  ww  w.  j a  va  2  s.  co  m*/
 */
@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));
}

---

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

private RSASignature createRSASignature() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);// www.j  ava  2 s .  c  o  m
    KeyPair key = keygen.generateKeyPair();
    RSASignature impl = new RSASignature();
    impl.setAlgorithm("SHA256withRSA");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(key.getPrivate().getEncoded());
    return impl;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »