Examples of javax.crypto.SecretKeyFactory.generateSecret()

javax.crypto.SecretKeyFactory.generateSecret()
Generate a secret key from the specified key specification. @param keySpec the key specification. @return a secret key. @throws InvalidKeySpecException if the specified key specification cannot be used to generate a secret key.

        // Create PBE parameter set
        pbeParamSpec = new PBEParameterSpec(salt, count);


        pbeKeySpec = new PBEKeySpec(PWD.toCharArray());
        keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);


        // Create PBE Cipher
        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");


        // Initialize PBE Cipher with key and parameters

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  public DESFactory(byte encKey[], byte desKey[]) throws Exception {
    SecureRandom sr = new SecureRandom();
    byte rawKeyData[] = encKey;
    DESKeySpec dks = new DESKeySpec(rawKeyData);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    javax.crypto.SecretKey key = keyFactory.generateSecret(dks);
    enCipher = Cipher.getInstance("DES");
    enCipher.init(1, key, sr);
    rawKeyData = desKey;
    dks = new DESKeySpec(rawKeyData);
    key = keyFactory.generateSecret(dks);

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    javax.crypto.SecretKey key = keyFactory.generateSecret(dks);
    enCipher = Cipher.getInstance("DES");
    enCipher.init(1, key, sr);
    rawKeyData = desKey;
    dks = new DESKeySpec(rawKeyData);
    key = keyFactory.generateSecret(dks);
    deCipher = Cipher.getInstance("DES");
    deCipher.init(2, key, sr);
  }


  public static String toHexString(byte value[]) {

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  public byte[] doDecrypt(byte encryptText[]) throws Exception {
    SecureRandom sr = new SecureRandom();
    byte rawKeyData[] = desKey;
    DESKeySpec dks = new DESKeySpec(rawKeyData);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    javax.crypto.SecretKey key = keyFactory.generateSecret(dks);
    Cipher cipher = Cipher.getInstance("DES");
    cipher.init(2, key, sr);
    byte encryptedData[] = encryptText;
    byte decryptedData[] = cipher.doFinal(encryptedData);
    return decryptedData;

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  public byte[] doEncrypt(byte plainText[]) throws Exception {
    SecureRandom sr = new SecureRandom();
    byte rawKeyData[] = desKey;
    DESKeySpec dks = new DESKeySpec(rawKeyData);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    javax.crypto.SecretKey key = keyFactory.generateSecret(dks);
    Cipher cipher = Cipher.getInstance("DES");
    cipher.init(1, key, sr);
    byte data[] = plainText;
    byte encryptedData[] = cipher.doFinal(data);
    return encryptedData;

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      // 从原始密匙数据创建DESKeySpec对象
      DESKeySpec dks = new DESKeySpec(key);
      // 创建一个密匙工厂，然后用它把DESKeySpec转换成
      // 一个SecretKey对象
      SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(algorithm);
      SecretKey secretKey = keyFactory.generateSecret(dks);
      // Cipher对象实际完成加密操作
      enCipher = Cipher.getInstance(algorithm);
      deCipher = Cipher.getInstance(algorithm);
      // 用密匙初始化Cipher对象
      enCipher.init(Cipher.ENCRYPT_MODE, secretKey, sr);

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   {
      // Create the PBE secret key
      cipherSpec = new PBEParameterSpec(salt, iterationCount);
      PBEKeySpec keySpec = new PBEKeySpec(keyStorePassword);
      SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");
      cipherKey = factory.generateSecret(keySpec);
   }


   private void loadKeyAndTrustStore() throws Exception
   {
      if (keyStorePassword != null)

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      if (salt.length() > 8) salt = salt.substring(0,8);
      if (salt.length() < 8) salt = (salt + "XXXXXXXX").substring(0,8);
      
      // create the PBE key
      final SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(method);
      final SecretKey key = keyFactory.generateSecret(keySpec);


      // create parameter spec for PBE
      final PBEParameterSpec paramSpec = new PBEParameterSpec(UTF8.getBytes(salt), 1000 /*ITERATIONS*/);
        
      // Create a cipher and initialize it for encrypting end decrypting

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     */
    private SecretKey generateDESSecretKey() throws Exception {
        byte[] bits192 = "abcdefghijklmnopqrstuvwx".getBytes();
        DESedeKeySpec keySpec = new DESedeKeySpec(bits192);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
        return keyFactory.generateSecret(keySpec);
    }


    /**
     * Decrypt the document using DOM API and run some tests on the decrypted Document.
     */

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    private Key getCiperKey(byte[] salt) throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeySpecException {
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        // hashing the password 65K times takes 151ms, hashing 256 times takes 2ms.
        // Since the salt has 2^^72 values, 256 times is probably good enough.
        KeySpec spec = new PBEKeySpec(sharedKey.toCharArray(), salt, 256, 128);
        SecretKey tmp = factory.generateSecret(spec);
        SecretKey key = new SecretKeySpec(tmp.getEncoded(), "AES");
        return key;
    }


    /**

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