Examples of java.security.KeyPairGenerator.generateKeyPair()

java.security.KeyPairGenerator.generateKeyPair()
Generates a key pair.
If this KeyPairGenerator has not been initialized explicitly, provider-specific defaults will be used for the size and other (algorithm-specific) values of the generated keys.
This will generate a new key pair every time it is called.
This method is functionally equivalent to {@link #genKeyPair() genKeyPair}. @return the generated key pair

            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.warn("Unable to generate keypair", e);
            return null;
        }

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        //Debug.logInfo(dhParamSpec.getP().toString() + " / " + dhParamSpec.getG().toString(), module);


        // create the public/private key pair using parameters defined by valuelink
        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH");
        keyGen.initialize(dhParamSpec);
        KeyPair keyPair = keyGen.generateKeyPair();


        return keyPair;
    }


    /**

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            keyGen = KeyPairGenerator.getInstance(algorithm);
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
        keyGen.initialize(keylength, new SecureRandom());
        return keyGen.generateKeyPair();
    }


    public static KeyStore loadKeystore() throws Exception {
        KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
        InputStream in = XmlSignatureTest.class.getResourceAsStream("/bob.keystore");

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    public boolean generateKeyPair(String alias, char[] storePassword, char[] keyPassword, String keyAlgorithm, int keySize, String signatureAlgorithm, int validity, String commonName, String orgUnit, String organization, String locality, String state, String country) {
        try {
            KeyPairGenerator kpgen = KeyPairGenerator.getInstance(keyAlgorithm);
            kpgen.initialize(keySize);
            KeyPair keyPair = kpgen.generateKeyPair();
            X509Certificate cert = generateCertificate(keyPair.getPublic(), keyPair.getPrivate(), signatureAlgorithm,
                    validity, commonName, orgUnit, organization, locality, state, country);


            keystore.setKeyEntry(alias, keyPair.getPrivate(), keyPassword, new Certificate[] { cert });
            privateKeys.add(alias);

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  KeyPair kp = null;
  try {
      KeyPairGenerator generator =
        KeyPairGenerator.getInstance("RSA", "IAIK");
      generator.initialize(512);
      kp = generator.generateKeyPair();
  } catch (NoSuchAlgorithmException e) {
      System.out.println("Can't create RSA/512 key pair: " + e);
      System.exit(1);
  } catch (NoSuchProviderException e) {
      System.out.println("Can't create RSA/512 key pair: " + e);

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        KeyPairGenerator kpgen = KeyPairGenerator.getInstance(keyalg);


        kpgen.initialize(keysize.intValue());


        KeyPair keyPair = kpgen.generateKeyPair();


        X509Certificate cert = generateCert(keyPair.getPublic(), keyPair
                .getPrivate(), sigalg, validity.intValue(), cn, ou, o, l, st, c);


        keystore.setKeyEntry(alias, keyPair.getPrivate(), new String()

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        }
        ensureLoaded(storePassword);
        try {
            KeyPairGenerator kpgen = KeyPairGenerator.getInstance(keyAlgorithm);
            kpgen.initialize(keySize);
            KeyPair keyPair = kpgen.generateKeyPair();
            X509Certificate cert = generateCertificate(keyPair.getPublic(), keyPair.getPrivate(), signatureAlgorithm,
                    validity, commonName, orgUnit, organization, locality, state, country);
    
            keystore.setKeyEntry(alias, keyPair.getPrivate(), keyPassword, new Certificate[] { cert });
            privateKeys.add(alias);

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        config.setParameter(ConfigurableProvider.EC_IMPLICITLY_CA, ecSpec);


        g.initialize(null, new SecureRandom());


        KeyPair p = g.generateKeyPair();


        ECPrivateKey sKey = (ECPrivateKey)p.getPrivate();
        ECPublicKey vKey = (ECPublicKey)p.getPublic();


        testECDSA(sKey, vKey);

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        config.setParameter(ConfigurableProvider.EC_IMPLICITLY_CA, ecSpec);


        g.initialize(null, new SecureRandom());


        KeyPair p = g.generateKeyPair();


        ECPrivateKey sKey = (ECPrivateKey)p.getPrivate();
        ECPublicKey vKey = (ECPublicKey)p.getPublic();


        KeyFactory fact = KeyFactory.getInstance("ECDSA", "BC");

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        config.setParameter(ConfigurableProvider.EC_IMPLICITLY_CA, ecSpec);


        g.initialize(null, new SecureRandom());


        KeyPair p = g.generateKeyPair();


        ECPrivateKey sKey = (ECPrivateKey)p.getPrivate();
        ECPublicKey vKey = (ECPublicKey)p.getPublic();


        testECDSA(sKey, vKey);

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