To encrypt or obfuscate data in the database

1. Create a class that implements the EncryptionControl interface.

   The following example creates a new class, Encryptor, which implements the encryption interface.

   static class Encryptor implements EncryptionControl {

2. Implement the initialize, encrypt, and decrypt methods in the new class.

   Your class should now look similar to the following:

   static class Encryptor implements EncryptionControl { /** Decrypt a page stored in the database. * @param page_no the number of the page being decrypted * @param src the encrypted source page which was read from the database * @param tgt the decrypted page (filled in by method) */ public void decrypt( int page_no, byte[] src, byte[] tgt ) throws ULjException { // Your decryption method goes here. } /** Encrypt a page stored in the database. * @param page_no the number of the page being encrypted * @param src the unencrypted source * @param tgt the encrypted target page which will be written to the database (filled in by method) */ public void encrypt( int page_no, byte[] src, byte[] tgt ) throws ULjException { // Your encryption method goes here. } /** Initialize the encryption control with a password. * @param password the password */ public void initialize(String password) throws ULjException { // Your initialization method goes here. } }

3. Configure the database to use your new class for encryption control.

   You can set the encryption control with the setEncryption method. The following example assumes that you have created a new Configuration, config, that references the name of the database.

   config.setEncryption(new Encryptor());

4. Connect to the database.

   Any data that is added or changed in the database is now encrypted.