Examples of KeyFactory

java.security.KeyFactory
Key factories are used to convert keys (opaque cryptographic keys of type Key) into key specifications (transparent representations of the underlying key material), and vice versa.
Key factories are bi-directional. That is, they allow you to build an opaque key object from a given key specification (key material), or to retrieve the underlying key material of a key object in a suitable format.
Multiple compatible key specifications may exist for the same key. For example, a DSA public key may be specified using DSAPublicKeySpec or X509EncodedKeySpec. A key factory can be used to translate between compatible key specifications.
The following is an example of how to use a key factory in order to instantiate a DSA public key from its encoding. Assume Alice has received a digital signature from Bob. Bob also sent her his public key (in encoded format) to verify his signature. Alice then performs the following actions:
```
 X509EncodedKeySpec bobPubKeySpec = new X509EncodedKeySpec(bobEncodedPubKey); KeyFactory keyFactory = KeyFactory.getInstance("DSA"); PublicKey bobPubKey = keyFactory.generatePublic(bobPubKeySpec); Signature sig = Signature.getInstance("DSA"); sig.initVerify(bobPubKey); sig.update(data); sig.verify(signature); 
```
@author Jan Luehe @version 1.35, 04/21/06 @see Key @see PublicKey @see PrivateKey @see java.security.spec.KeySpec @see java.security.spec.DSAPublicKeySpec @see java.security.spec.X509EncodedKeySpec @since 1.2
org.apache.giraph.io.gora.utils.KeyFactory
Class used to convert strings into more complex keys.
org.hdiv.cipher.KeyFactory
Key Factory generator. @author Roberto Velasco

Examples of java.security.KeyFactory

        // set up the keys
        //
        PrivateKey          privKey;
        PublicKey           pubKey;
    
        KeyFactory  kFact = KeyFactory.getInstance("RSA", "BC");
    
        privKey = kFact.generatePrivate(RSA_PRIVATE_KEY_SPEC);
        pubKey = kFact.generatePublic(pubKeySpec);
        
        X509V2AttributeCertificateGenerator gen = new X509V2AttributeCertificateGenerator();
        
        // the actual attributes
        GeneralName roleName = new GeneralName(GeneralName.rfc822Name, "DAU123456789");

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Examples of org.apache.giraph.io.gora.utils.KeyFactory

   * @return List<InputSplit> A list of splits
   */
  @Override
  public List<InputSplit> getSplits(JobContext context, int minSplitCountHint)
    throws IOException, InterruptedException {
    KeyFactory kFact = null;
    try {
      kFact = (KeyFactory) getKeyFactoryClass().newInstance();
    } catch (InstantiationException e) {
      LOG.error("Key factory was not instantiated. Please verify.");
      LOG.error(e.getMessage());
      e.printStackTrace();
    } catch (IllegalAccessException e) {
      LOG.error("Key factory was not instantiated. Please verify.");
      LOG.error(e.getMessage());
      e.printStackTrace();
    }
    String sKey = GIRAPH_GORA_START_KEY.get(getConf());
    String eKey = GIRAPH_GORA_END_KEY.get(getConf());
    if (sKey == null || sKey.isEmpty()) {
      LOG.warn("No start key has been defined.");
      LOG.warn("Querying all the data store.");
      sKey = null;
      eKey = null;
    }
    kFact.setDataStore(getDataStore());
    setStartKey(kFact.buildKey(sKey));
    setEndKey(kFact.buildKey(eKey));
    QueryBase tmpQuery = GoraUtils.getQuery(
        getDataStore(), getStartKey(), getEndKey());
    tmpQuery.setConf(context.getConfiguration());
    GORA_INPUT_FORMAT.setQuery(tmpQuery);
    List<InputSplit> splits = GORA_INPUT_FORMAT.getSplits(context);

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Examples of org.hdiv.cipher.KeyFactory

    return pageIdGenerator;
  }


  @Bean
  public IKeyFactory keyFactory() {
    KeyFactory keyFactory = new KeyFactory();


    SecurityConfigBuilder builder = this.securityConfigBuilder();
    CipherConfigure config = builder.getCipherConfigure();
    if (config.getAlgorithm() != null) {
      keyFactory.setAlgorithm(config.getAlgorithm());
    }
    if (config.getKeySize() > 0) {
      keyFactory.setKeySize(config.getKeySize());
    }
    if (config.getPrngAlgorithm() != null) {
      keyFactory.setPrngAlgorithm(config.getPrngAlgorithm());
    }
    if (config.getProvider() != null) {
      keyFactory.setProvider(config.getProvider());
    }
    return keyFactory;
  }

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