Write a string in encrypted way in windows registry using java

Arjun2016[^] wrote:

I have tried with java.util.prefs.Preferences, but it did not work.

import com.sun.jna.platform.win32.Advapi32Util;
import static com.sun.jna.platform.win32.WinReg.HKEY_CURRENT_USER;
import java.util.Scanner;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;

public class Test {
	private static String encryptionKey;
	
	public Test(String encryptionKey)
    {
        Test.encryptionKey = encryptionKey;
    }	
	private static void SetEncryptiontKey(String string) {
		// TODO Auto-generated method stub
		Test.encryptionKey = string;
	}
	
    public String encrypt(String plainText) throws Exception
    {
        Cipher cipher = getCipher(Cipher.ENCRYPT_MODE);
        byte[] encryptedBytes = cipher.doFinal(plainText.getBytes());

        return Base64.encode(encryptedBytes);
    } 

    private Cipher getCipher(int cipherMode)
            throws Exception
    {
        String encryptionAlgorithm = "AES";
        SecretKeySpec keySpecification = new SecretKeySpec(
                encryptionKey.getBytes("UTF-8"), encryptionAlgorithm);
        Cipher cipher = Cipher.getInstance(encryptionAlgorithm);
        cipher.init(cipherMode, keySpecification);

        return cipher;
    }
    
    public static void main(String[] args) {
    	Scanner in = new Scanner(System.in);
    	SetEncryptiontKey("MZygpewJsCpRrfOr");
    	
    	System.out.println("Enter User Name\n");
    	String Username = in.nextLine();
    	
    	System.out.println("Enter Password\n");
    	String Password = in.nextLine();
    	    	
    	Test advancedEncryptionStandard = new Test(
            encryptionKey);
    	String cipherText = null;
		try {
			cipherText = advancedEncryptionStandard.encrypt(Password);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
    	//System.out.println(Password);
    	//System.out.println(cipherText);
    	
    	Advapi32Util.registryCreateKey(HKEY_CURRENT_USER, "Software\\Dell Configuration");
       // System.out.println(Advapi32Util.registryKeyExists(HKEY_CURRENT_USER, "Software"));
        Advapi32Util.registrySetStringValue
            (HKEY_CURRENT_USER, "Software\\Dell Configuration", "Username", Username);
        Advapi32Util.registrySetStringValue
        (HKEY_CURRENT_USER, "Software\\Dell Configuration", "Password", cipherText);
    }	

}