import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SealedObject;
import javax.crypto.SecretKey;
public class Main {
public static void main(String[] argv) throws Exception {
SecretKey key = KeyGenerator.getInstance("DES").generateKey();
Cipher ecipher = Cipher.getInstance("DES");
ecipher.init(Cipher.ENCRYPT_MODE, key);
SealedObject so = new SealedObject(new MySecretClass(), ecipher);
String algoName = so.getAlgorithm(); // DES
Cipher dcipher = Cipher.getInstance("DES");
dcipher.init(Cipher.DECRYPT_MODE, key);
MySecretClass o = (MySecretClass) so.getObject(dcipher);
}
}
class MySecretClass implements java.io.Serializable {
String s = "the secret";
}