Review

11

sos/mrtd/sample/BACPanel$MRZPanel.java

actionPerformed(ActionEvent)

class BACPanel.MRZPanel {
      public void actionPerformed(ActionEvent ae) {
         try {
            byte[] keySeed = Util.computeKeySeed(docNrTF.getText(), dateOfBirthTF
                  .getText(), dateOfExpiryTF.getText());
            kEnc = Util.deriveKey(keySeed, Util.ENC_MODE);
            kMac = Util.deriveKey(keySeed, Util.MAC_MODE);
            kEncTF.setValue(kEnc.getEncoded());
            kMacTF.setValue(kMac.getEncoded());
         } catch (Exception e) {
            kEnc = null;
            kMac = null;
            kEncTF.clearText();
            kMacTF.clearText();
         }
      }
}