Class PasswordDecryptManagerGUI

PasswordDecryptManagerGUI.java:17–119

import java.nio.charset.StandardCharsets;

public class PasswordDecryptManagerGUI extends JFrame implements ActionListener {

    private static final String SECRET_KEY_ALGORITHM = "AES";
    private static final String CIPHER_ALGORITHM = "AES/CBC/PKCS5Padding";
    private static final int KEY_LENGTH = 256;
    private static final int SALT_LENGTH = 16;
    private static final int ITERATIONS = 65536;
    private static final int IV_LENGTH = 16;
    private static final String ENCRYPTED_PASSWORD_FILE = "encrypted_password.txt";

    private JTextField masterPasswordField, encryptedPasswordField, decryptedPasswordField;

    public PasswordDecryptManagerGUI() {
        setTitle("Password Manager");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(500, 300);
        setLocationRelativeTo(null);

        JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new GridLayout(4, 2, 10, 10));
        mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
	
	Font labelFont = new Font("Arial", Font.PLAIN, 16); // Adjust the font size as needed
	Font textFieldFont = new Font("Arial", Font.PLAIN, 16); // Adjust the font size as needed

        JLabel masterPasswordLabel = new JLabel("Master Password:");
	masterPasswordLabel.setFont(labelFont);
        masterPasswordField = new JPasswordField();
	masterPasswordField.setFont(textFieldFont);


        JLabel encryptedPasswordLabel = new JLabel("Encrypted Password:");
	encryptedPasswordLabel.setFont(labelFont);
        encryptedPasswordField = new JTextField();
	encryptedPasswordField.setFont(textFieldFont);


        JLabel decryptedPasswordLabel = new JLabel("Decrypted Password:");
	decryptedPasswordLabel.setFont(labelFont);
        decryptedPasswordField = new JTextField();
        decryptedPasswordField.setEditable(false);
	decryptedPasswordField.setFont(textFieldFont);

        JButton decryptButton = new JButton("Decrypt");

        decryptButton.addActionListener(this);

        mainPanel.add(masterPasswordLabel);
        mainPanel.add(masterPasswordField);
        mainPanel.add(encryptedPasswordLabel);
        mainPanel.add(encryptedPasswordField);
        mainPanel.add(decryptedPasswordLabel);
        mainPanel.add(decryptedPasswordField);
        mainPanel.add(decryptButton);

        setContentPane(mainPanel);
        setVisible(true);
    }