/**
* Let the passport sign a message using the passports own private key.
*
* @param message The message to sign (can be any size)
* @return A signature, the response from the passport.
* @throws CardServiceException Gets thrown when there's a problem communicating with the
* passport.
* @throws NoSuchAlgorithmException Gets thrown when there's no SHA1 provider present.
*/
public byte[] signWithAA(byte[] message) throws CardServiceException, NoSuchAlgorithmException {
if (activateTerminal()) {
DG15File dg15 = new DG15File(_activePassportService.readFile(PassportService.EF_DG15));
PublicKey publicKey = dg15.getPublicKey();
MessageDigest digest = MessageDigest.getInstance("SHA1");
byte[] digestedMessage = digest.digest(message);
byte[] m2 = new byte[8];
System.arraycopy(digestedMessage, 0, m2, 0, m2.length);
return _activePassportService.sendAA(publicKey, m2);
}
return new byte[0];
}
/**
* Performs the Basic Access Control protocol.
*
* @param docNumber the document number
* @param dateOfBirth card holder's birth date
* @param dateOfExpiry document's expiry date
* @throws CardServiceException if authentication failed
* @throws ParseException if at least one of the dates could not be parsed
*/
public void doBac(String docNumber, String dateOfBirth, String dateOfExpiry)
throws CardServiceException, ParseException {
if (activateTerminal()) {
_activePassportService.doBAC(
new BACKeySpec(docNumber, SDF.parse(dateOfBirth), SDF.parse(dateOfExpiry)));
}
}
/** Close the session with the current card and cardreader. */
public void Close() {
if (_activePassportService != null) {
_activePassportService.close();
_activePassportService = null;
_activeCardService = null;
_activeCardTerminal = null;
}
}
/**
* Retrieve a DG file from the passport.
*
* @param dgTag Tag of the DG file to retrieve.
* @return The bytes of the DG file.
* @throws CardServiceException Gets thrown when there's a problem communicating with the
* passport.
* @throws IOException Gets thrown when there's a problem reading the file from the passport.
*/
public byte[] getDG(int dgTag) throws CardServiceException, IOException {
if (activateTerminal()) {
short dgFID = PassportFile.lookupFIDByTag(dgTag);
CardFileInputStream dgStream = _activePassportService.readFile(dgFID);
byte[] data = new byte[dgStream.getFileLength()];
int read = dgStream.read(data, 0, data.length);
if (read == data.length) return data;
}
return new byte[0];
}
private synchronized boolean activateTerminal() {
Interfacer.getLogger().log("ACTIVATE TERMINAL");
// select which terminal to use
if (_cardTerminal != null) _activeCardTerminal = _cardTerminal;
else {
while (_activeCardTerminal == null) {
try {
for (CardTerminal cardTerminalLoop : _cardTerminals) {
if (cardTerminalLoop.isCardPresent()
&& !cardTerminalLoop.getName().toUpperCase().contains("EMULATOR")) {
_activeCardTerminal = cardTerminalLoop;
break;
}
}
if (_activeCardTerminal == null) {
Interfacer.getLogger().log("INSERT CARD (s)");
Thread.sleep(1000);
}
} catch (Exception e) {
}
}
}
Interfacer.getLogger().log("ACTIVE TERMINAL: " + _activeCardTerminal.getName());
try {
// wait for a card to be put in the terminal
while (!_activeCardTerminal.isCardPresent()
&& !_activeCardTerminal.getName().toUpperCase().contains("EMULATOR")) {
Interfacer.getLogger().log("INSERT CARD (s)");
Thread.sleep(1000);
}
if (_activePassportService == null) {
_activeCardService = new TerminalCardService(_activeCardTerminal);
_activePassportService = new PassportService(_activeCardService);
_activePassportService.open();
}
Interfacer.getLogger().log("CARD INSERTED AT: " + _activeCardTerminal.getName());
return true;
} catch (Exception e) {
e.printStackTrace();
}
// something went wrong if we reached this point, clear the selected terminal
Interfacer.getLogger().log("NO TERMINAL COULD BE ACTIVATED");
return false;
}