Example usage for java.security KeyPairGenerator getInstance

List of usage examples for java.security KeyPairGenerator getInstance

  1. HOME
  2. Java
  3. java
  4. java.security.*
  5. KeyPairGenerator
  6. getInstance

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:com.streamsets.pipeline.stage.processor.http.HttpProcessorIT.java

@Test
public void testOAuth2Jwt() throws Exception {
    tokenGetCount = 0;/* www. ja v a  2  s. c  o m*/
    keyPair = KeyPairGenerator.getInstance("RSA").generateKeyPair();
    try {
        HttpProcessorConfig conf = new HttpProcessorConfig();
        conf.httpMethod = HttpMethod.GET;
        conf.dataFormat = DataFormat.JSON;
        conf.resourceUrl = getBaseUri() + "test/get";
        conf.client.useOAuth2 = true;
        conf.client.oauth2.credentialsGrantType = OAuth2GrantTypes.JWT;
        conf.client.oauth2.algorithm = SigningAlgorithms.RS256;
        conf.client.oauth2.jwtClaims = JWT;
        conf.client.oauth2.key = () -> Base64.encodeBase64String(keyPair.getPrivate().getEncoded());
        conf.client.oauth2.tokenUrl = getBaseUri() + "jwtToken";

        List<Record> records = createRecords("test/get");
        ProcessorRunner runner = createProcessorRunner(conf);
        try {
            StageRunner.Output output = runner.runProcess(records);
            assertOutputMap(output, "hello", "world!");
        } finally {
            runner.runDestroy();
        }
        assertEquals(1, tokenGetCount);
    } finally {
        token = null;
        tokenGetCount = 0;
    }
}

From source file:it.scoppelletti.programmerpower.security.CryptoUtils.java

/**
 * Restituisce un generatore di coppie di chiavi (pubblica, privata).
 *      // w w  w  .  j  a  v  a  2 s . c om
 * <H4>1. Propriet&agrave;</H4>
 * 
 * <P><TABLE WIDTH="100%" BORDER="1" CELLPADDING="5">
 * <THEAD>
 * <TR>
 *     <TH>Propriet&agrave;</TH>
 *     <TH>Descrizione</TH>     
 * </TR>
 * </THEAD>
 * <TBODY>
 * <TR>
 *      <TD>{@code alg}</TD>
 *      <TD>Codice dell&rsquo;algoritmo di crittografia.</TD>            
 * </TR>
 * <TR>
 *      <TD>{@code param.factory}</TD>
 *      <TD>Nome della classe di factory dei parametri specifici
 *      dell&rsquo;algoritmo; la classe deve implementare
 *      l&rsquo;interfaccia {@code AlgorithmParameterSpecFactory} e
 *      pu&ograve; prevedere altre propriet&agrave;.</TD>          
 * </TR>
 * <TR>
 *      <TD>{@code param.factory.prefix}</TD>
 *      <TD>Eventuale prefisso da applicare al nome delle propriet&agrave;
 *      interrogate dal provider {@code param.factory}.</TD>          
 * </TR> 
 * <TR>
 *      <TD>{@code key.size}</TD>
 *      <TD>Dimensione della chiave (numero di bit).</TD>          
 * </TR> 
 * <TR>
 *     <TD COLSPAN="2">Le propriet&agrave; {@code param.factory} e
 *     {@code key.size} non possono essere entrambe impostate; se nessuna
 *     delle due propriet&agrave; &egrave; impostata, il generatore
 *     sar&agrave; inizializzato con i parametri di default definiti dallo
 *     specifico provider JCA.</TD>
 * </TR>
 * </TBODY>
 * </TABLE></P>       
 *  
 * @param  props  Propriet&agrave;.
 * @param  prefix Prefisso da applicare al nome delle propriet&agrave; da
 *                interrogare. Pu&ograve; essere {@code null}.
 * @return        Oggetto.
 * @see    it.scoppelletti.programmerpower.security.spi.AlgorithmParameterSpecFactory
 * @see    <A HREF="{@docRoot}/it/scoppelletti/programmerpower/security/CryptoUtils.html#idAlg">Algoritmi
 *         di crittografia</A>
 */
public static KeyPairGenerator getKeyPairGenerator(Properties props, String prefix) {
    int keySize;
    String alg, name;
    KeyPairGenerator gen;
    AlgorithmParameterSpec params;
    SecurityResources res = new SecurityResources();

    if (props == null) {
        throw new ArgumentNullException("props");
    }

    name = Strings.concat(prefix, CryptoUtils.PROP_KEYALGORITHM);
    alg = props.getProperty(name);
    if (Strings.isNullOrEmpty(alg)) {
        throw new ArgumentNullException(name);
    }

    params = CryptoUtils.getAlgorithmParameterSpec(props, prefix);
    keySize = CryptoUtils.getKeySize(props, prefix);
    if (params != null && keySize >= 0) {
        throw new IllegalArgumentException(
                res.getArgumentIncompatibilityException(Strings.concat(prefix, CryptoUtils.PROP_PARAMFACTORY),
                        Strings.concat(prefix, CryptoUtils.PROP_KEYSIZE)));
    }

    try {
        gen = KeyPairGenerator.getInstance(alg);
        if (params != null) {
            gen.initialize(params);
        }
        if (keySize >= 0) {
            gen.initialize(keySize);
        }
    } catch (GeneralSecurityException ex) {
        throw SecurityUtils.toSecurityException(ex);
    }

    return gen;
}

From source file:org.apache.geode.internal.cache.tier.sockets.HandShake.java

/**
 * Initialize the Diffie-Hellman keys. This method is not thread safe
 *//*from  w  ww.j av a2  s  .  c  om*/
public static void initDHKeys(DistributionConfig config) throws Exception {

    dhSKAlgo = config.getSecurityClientDHAlgo();
    dhPrivateKey = null;
    dhPublicKey = null;
    // Initialize the keys when either the host is a client that has
    // non-blank setting for DH symmetric algo, or this is a server
    // that has authenticator defined.
    if ((dhSKAlgo != null && dhSKAlgo.length() > 0) /* || securityService.isClientSecurityRequired() */) {
        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH");
        DHParameterSpec dhSpec = new DHParameterSpec(dhP, dhG, dhL);
        keyGen.initialize(dhSpec);
        KeyPair keypair = keyGen.generateKeyPair();

        // Get the generated public and private keys
        dhPrivateKey = keypair.getPrivate();
        dhPublicKey = keypair.getPublic();

        random = new SecureRandom();
        // Force the random generator to seed itself.
        byte[] someBytes = new byte[48];
        random.nextBytes(someBytes);
    }
}

From source file:duthientan.mmanm.com.Main.java

private void BntGenerationKeyActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BntGenerationKeyActionPerformed
    // TODO add your handling code here:
    if (filePath.size() != 0) {

        progressBarCipher.setIndeterminate(true);
        new Thread(new Runnable() {
            @Override//from   w w w .j a  v a 2  s  .  c om
            public void run() {
                try {
                    Path path = Paths.get(filePath.get(0));
                    String srcParent = path.getParent().toString();
                    final KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
                    keyGen.initialize(2048);
                    final KeyPair key = keyGen.generateKeyPair();
                    File privateKeyFile = new File(srcParent + "/private.key");
                    File publicKeyFile = new File(srcParent + "/public.key");
                    publicKeyFile.createNewFile();
                    publicKeyFile.createNewFile();
                    ObjectOutputStream publicKeyOS = new ObjectOutputStream(
                            new FileOutputStream(publicKeyFile));
                    publicKeyOS.writeObject(key.getPublic());
                    publicKeyOS.close();
                    ObjectOutputStream privateKeyOS = new ObjectOutputStream(
                            new FileOutputStream(privateKeyFile));
                    privateKeyOS.writeObject(key.getPrivate());
                    privateKeyOS.close();
                    progressBarCipher.setIndeterminate(false);
                    JFrame frame = new JFrame("COMPLETED");
                    JOptionPane.showMessageDialog(frame, "Greneration Key File Completed");
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                } catch (NoSuchAlgorithmException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }).start();

    } else {
        JFrame frame = new JFrame("ERROR");
        JOptionPane.showMessageDialog(frame, "Please Choice File To Cipher Before Greneration Key");
    }
}

From source file:com.streamsets.pipeline.stage.origin.http.HttpClientSourceIT.java

@Test
public void testOAuth2Jwt() throws Exception {
    tokenGetCount = 0;//from   www  .  j  a  va 2 s.  c  om
    keyPair = KeyPairGenerator.getInstance("RSA").generateKeyPair();
    try {
        DataFormat dataFormat = DataFormat.JSON;
        HttpClientConfigBean conf = new HttpClientConfigBean();
        conf.client.authType = AuthenticationType.NONE;
        conf.client.useOAuth2 = true;
        conf.client.oauth2.credentialsGrantType = OAuth2GrantTypes.JWT;
        conf.client.oauth2.algorithm = SigningAlgorithms.RS256;
        conf.client.oauth2.jwtClaims = JWT;
        conf.client.oauth2.key = () -> Base64.encodeBase64String(keyPair.getPrivate().getEncoded());
        conf.client.oauth2.tokenUrl = getBaseUri() + "jwtToken";
        conf.httpMode = HttpClientMode.STREAMING;
        conf.resourceUrl = getBaseUri() + "stream";
        conf.client.readTimeoutMillis = 1000;
        conf.basic.maxBatchSize = 100;
        conf.basic.maxWaitTime = 1000;
        conf.pollingInterval = 1000;
        conf.httpMethod = HttpMethod.GET;
        conf.dataFormat = dataFormat;
        conf.dataFormatConfig.jsonContent = JsonMode.MULTIPLE_OBJECTS;

        runBatchAndAssertNames(dataFormat, conf);
        assertEquals(1, tokenGetCount);
    } finally {
        token = null;
    }
}