Example usage for java.security KeyPairGenerator generateKeyPair

Introduction

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

Prototype

public KeyPair generateKeyPair() 

Source Link

Document

Generates a key pair.

Usage

From source file:org.cogroo.addon.util.SecurityUtil.java

public KeyPair genKeyPair() {
    KeyPair kpr = null;// www  .j  a v a 2s .c  om
    try {
        KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
        kpg.initialize(new RSAKeyGenParameterSpec(RSAKEYSIZE, RSAKeyGenParameterSpec.F4));
        kpr = kpg.generateKeyPair();
    } catch (NoSuchAlgorithmException e) {
        LOG.log(Level.SEVERE, "Error generating key pair", e);
    } catch (InvalidAlgorithmParameterException e) {
        LOG.log(Level.SEVERE, "Error generating key pair", e);
    }
    return kpr;
}

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From source file:mitm.common.security.ca.SMIMECABuilder.java

private KeyPair generateKeyPair(int keyLength) throws NoSuchAlgorithmException, NoSuchProviderException {
    KeyPairGenerator keyPairGenerator = securityFactory.createKeyPairGenerator("RSA");

    keyPairGenerator.initialize(keyLength, randomSource);

    return keyPairGenerator.generateKeyPair();
}

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From source file:edu.vt.alerts.android.library.tasks.RegistrationTask.java

private KeyPair generateKeyPair() throws Exception {
    KeyPairGenerator kpg = KeyPairGenerator.getInstance(KEYPAIR_ALGORITHM);
    kpg.initialize(KEYPAIR_KEYSIZE);/*from w  ww  .  j a  va2  s  .  c  om*/
    return kpg.generateKeyPair();
}

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From source file:edu.vt.middleware.crypt.util.CryptReaderWriterTest.java

/**
 * @return  Public key test data.//from   ww w.  j  a  va 2s. c  o m
 *
 * @throws  Exception  On test data generation failure.
 */
@DataProvider(name = "pubkeydata")
public Object[][] createPubKeyTestData() 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[][] { { rsaKeys.getPublic() }, { dsaKeys.getPublic() }, };
}

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From source file:edu.vt.middleware.crypt.util.CryptReaderWriterTest.java

/**
 * @return  Private key test data./* w ww .  jav  a 2 s  .  c  o m*/
 *
 * @throws  Exception  On test data generation failure.
 */
@DataProvider(name = "privkeydata")
public Object[][] createPrivKeyTestData() 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[][] { { rsaKeys.getPrivate(), "S33Kr1t!" }, { dsaKeys.getPrivate(), "S33Kr1t!" },
            { rsaKeys.getPrivate(), null }, { dsaKeys.getPrivate(), null }, };
}

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From source file:net.solarnetwork.pki.bc.test.BCCertificateServiceTest.java

@Before
public void setup() {
    service = new BCCertificateService();
    KeyPairGenerator keyGen;
    try {//from w  ww . j  av a2 s .  c  o m
        keyGen = KeyPairGenerator.getInstance("RSA");
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
    keyGen.initialize(2048, new SecureRandom());
    KeyPair keypair = keyGen.generateKeyPair();
    publicKey = keypair.getPublic();
    privateKey = keypair.getPrivate();
}

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From source file:test.unit.org.owasp.webscarab.util.SunCertificateUtilsTest.java

private KeyPair generateKeyPair(int size) throws NoSuchAlgorithmException, InvalidAlgorithmParameterException {
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    SecureRandom random = new SecureRandom();
    keyPairGenerator.initialize(new RSAKeyGenParameterSpec(size, RSAKeyGenParameterSpec.F4), random);
    KeyPair keyPair = keyPairGenerator.generateKeyPair();
    return keyPair;
}

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From source file:org.apache.sshd.server.keyprovider.AbstractGeneratorHostKeyProvider.java

private KeyPair generateKeyPair(String algorithm) {
    try {/*from   w  w w .  j  a  va2  s .com*/
        KeyPairGenerator generator = SecurityUtils.getKeyPairGenerator(algorithm);
        if (keySize != 0) {
            generator.initialize(keySize);
        }
        LOG.info("Generating host key...");
        KeyPair kp = generator.generateKeyPair();
        return kp;
    } catch (Exception e) {
        LOG.error("Unable to generate keypair", e);
        return null;
    }
}

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From source file:wsattacker.library.signatureFaking.helper.CertificateHandler.java

public void createFakedCertificate() throws CertificateHandlerException {
    try {//from  w w w .ja v  a2  s.  c o m
        log.debug("Faking the found certificate");
        // TODO: implement this with bouncy castle
        KeyPairGenerator kpg = KeyPairGenerator.getInstance(originalPublicKey.getAlgorithm());
        kpg.initialize(((RSAPublicKey) certificate.getPublicKey()).getModulus().bitLength());
        fakedKeyPair = kpg.generateKeyPair();

        X509CertInfo info = new X509CertInfo();
        CertificateValidity interval = new CertificateValidity(certificate.getNotBefore(),
                certificate.getNotAfter());
        // TODO: new SecureRandom().generateSeed(64) is very slow! Replace
        // it?
        // BigInteger sn = new BigInteger(new
        // SecureRandom().generateSeed(64));
        BigInteger sn = new BigInteger(64, new Random());
        X500Name owner = new X500Name(certificate.getSubjectDN().getName());
        X500Name issuer = new X500Name(certificate.getIssuerDN().getName());

        info.set(X509CertInfo.VALIDITY, interval);
        info.set(X509CertInfo.SERIAL_NUMBER, new CertificateSerialNumber(sn));
        info.set(X509CertInfo.SUBJECT, new CertificateSubjectName(owner));
        info.set(X509CertInfo.ISSUER, new CertificateIssuerName(issuer));
        info.set(X509CertInfo.KEY, new CertificateX509Key(fakedKeyPair.getPublic()));

        info.set(X509CertInfo.VERSION, new CertificateVersion(CertificateVersion.V3));

        AlgorithmId algo = new AlgorithmId(new ObjectIdentifier(certificate.getSigAlgOID()));
        info.set(X509CertInfo.ALGORITHM_ID, new CertificateAlgorithmId(algo));

        // Sign the cert to identify the algorithm that's used.
        fakedCertificate = new X509CertImpl(info);
        fakedCertificate.sign(fakedKeyPair.getPrivate(), certificate.getSigAlgName());
    } catch (CertificateException e) {
        throw new CertificateHandlerException(e);
    } catch (IOException e) {
        throw new CertificateHandlerException(e);
    } catch (InvalidKeyException e) {
        throw new CertificateHandlerException(e);
    } catch (NoSuchAlgorithmException e) {
        throw new CertificateHandlerException(e);
    } catch (NoSuchProviderException e) {
        throw new CertificateHandlerException(e);
    } catch (SignatureException e) {
        throw new CertificateHandlerException(e);
    }
}

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From source file:mitm.common.security.certificate.GenerateSSLCertificate.java

private void generateSSLCertificate() throws Exception {
    X509CertificateBuilder certificateBuilder = securityFactory.createX509CertificateBuilder();

    KeyPairGenerator keyPairGenerator = securityFactory.createKeyPairGenerator("RSA");

    SecureRandom randomSource = securityFactory.createSecureRandom();

    keyPairGenerator.initialize(1024, randomSource);

    KeyPair keyPair = keyPairGenerator.generateKeyPair();

    X500PrincipalBuilder subjectBuilder = new X500PrincipalBuilder();

    subjectBuilder.setCommonName("www.example.com");
    subjectBuilder.setCountryCode("NL");
    subjectBuilder.setLocality("Amsterdam");
    subjectBuilder.setState("NH");

    X500Principal subject = subjectBuilder.buildPrincipal();

    Set<ExtendedKeyUsageType> extendedKeyUsage = new TreeSet<ExtendedKeyUsageType>();

    extendedKeyUsage.add(ExtendedKeyUsageType.CLIENTAUTH);
    extendedKeyUsage.add(ExtendedKeyUsageType.EMAILPROTECTION);
    extendedKeyUsage.add(ExtendedKeyUsageType.SERVERAUTH);

    SerialNumberGenerator sng = new StandardSerialNumberGenerator();

    BigInteger serialNumber = sng.generate();

    Date now = new Date();

    certificateBuilder.setSubject(subject);
    certificateBuilder.setIssuer(subject);
    certificateBuilder.setExtendedKeyUsage(extendedKeyUsage, false);
    certificateBuilder.setNotBefore(DateUtils.addDays(now, -20));
    certificateBuilder.setNotAfter(DateUtils.addYears(now, 20));
    certificateBuilder.setPublicKey(keyPair.getPublic());
    certificateBuilder.setSerialNumber(serialNumber);
    certificateBuilder.setSignatureAlgorithm("SHA1WithRSAEncryption");

    X509Certificate certificate = certificateBuilder.generateCertificate(keyPair.getPrivate(), null);

    assertNotNull(certificate);/*from  w  w w  .ja  v a2s  .  c  o  m*/

    certificates.add(certificate);

    Certificate[] chain = new Certificate[] { certificate };

    keyStore.setKeyEntry("djigzo", keyPair.getPrivate(), null, chain);
}

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