Review

class BACPanel.ChallengePanel {
      public ChallengePanel() {
         super(new FlowLayout());
         setBorder(BorderFactory.createTitledBorder(PANEL_BORDER, "Get Challenge"));
         challengeField = new HexField(8);
         challengeField.setEditable(false);
         JButton challengeButton = new JButton("Get Challenge");
         challengeButton.addActionListener(this);
         add(new JLabel("RND.ICC: "));
         add(challengeField);
         add(challengeButton);
      }
}

class BACPanel.MRZPanel {
      public MRZPanel() {
         super(new BorderLayout());
         setBorder(BorderFactory.createTitledBorder(PANEL_BORDER, "MRZ"));
         JPanel top = new JPanel(new FlowLayout());
         docNrTF = new JTextField(9);
         dateOfBirthTF = new JTextField(6);
         dateOfExpiryTF = new JTextField(6);
         docNrTF.setText(PassportGUI.DEFAULT_DOC_NR);
         dateOfBirthTF.setText(PassportGUI.DEFAULT_DATE_OF_BIRTH);
         dateOfExpiryTF.setText(PassportGUI.DEFAULT_DATE_OF_EXPIRY);
         kEncTF = new HexField(24);
         kEncTF.setEditable(false);
         kMacTF = new HexField(24);
         kMacTF.setEditable(false);
         top.add(new JLabel("Document number: "));
         top.add(docNrTF);
         top.add(new JLabel("Date of birth: "));
         top.add(dateOfBirthTF);
         top.add(new JLabel("Date of expiry: "));
         top.add(dateOfExpiryTF);
         JButton updateButton = new JButton("Derive Keys");
         top.add(updateButton);
         updateButton.addActionListener(this);
         JPanel center = new JPanel(new FlowLayout());
         JPanel bottom = new JPanel(new GridLayout(2, 2));
         bottom.add(new JLabel("K.ENC: ", JLabel.RIGHT));
         bottom.add(kEncTF);
         bottom.add(new JLabel("K.MAC: ", JLabel.RIGHT));
         bottom.add(kMacTF);
         add(top, BorderLayout.NORTH);
         add(center, BorderLayout.CENTER);
         add(bottom, BorderLayout.SOUTH);
      }
}

class BACPanel.MutualAuthPanel {
      public MutualAuthPanel() {
         super(new BorderLayout());
         setBorder(BorderFactory.createTitledBorder(PANEL_BORDER,
               "Mutual Authenticate"));
         JPanel top = new JPanel(new FlowLayout());
         challengeField = new HexField(8);
         challengeField.setValue(Hex.hexStringToBytes("781723860C06C226"));
         keyField = new HexField(16);
         keyField.setValue(Hex
               .hexStringToBytes("0B795240CB7049B01C19B33E32804F0B"));
         JButton authButton = new JButton("Mutual Authenticate");
         authButton.addActionListener(this);
         top.add(new JLabel("RND.IFD: "));
         top.add(challengeField);
         top.add(new JLabel("K.IFD: "));
         top.add(keyField);
         top.add(authButton);
         JPanel center = new JPanel(new FlowLayout());
         plaintextField = new HexField(32);
         plaintextField.setEditable(false);
         center.add(new JLabel("[E.ICC]: "));
         center.add(plaintextField);
         JPanel bottom = new JPanel(new GridLayout(3, 2));
         ksEncTF = new HexField(24);
         ksEncTF.setEditable(false);
         ksMacTF = new HexField(24);
         ksMacTF.setEditable(false);
         sscTF = new HexField(8);
         sscTF.setEditable(false);
         bottom.add(new JLabel("KS.ENC: ", JLabel.RIGHT));
         bottom.add(ksEncTF);
         bottom.add(new JLabel("KS.MAC: ", JLabel.RIGHT));
         bottom.add(ksMacTF);
         bottom.add(new JLabel("SSC: ", JLabel.RIGHT));
         bottom.add(sscTF);
         add(top, BorderLayout.NORTH);
         add(center, BorderLayout.CENTER);
         add(bottom, BorderLayout.SOUTH);
      }

}