flutter_cccd_vn 2.0.2 
flutter_cccd_vn: ^2.0.2 copied to clipboard
ICAO Doc 9303 MRTD (biometric passport) Dart library with a Vietnamese CCCD (căn cước công dân) NFC reading adapter — BAC/PACE, OCR-driven credentials, and a typed CCCD data/verification API.
// Created by Crt Vavros, copyright © 2022 ZeroPass. All rights reserved.
// ignore_for_file: prefer_adjacent_string_concatenation, prefer_interpolation_to_compose_strings
// ignore_for_file: implementation_imports
import 'package:expandable/expandable.dart';
import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
import 'dart:async';
import 'package:flutter_cccd_vn/dmrtd.dart';
import 'package:flutter_cccd_vn/extensions.dart';
import 'package:flutter/services.dart';
import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
import 'package:logging/logging.dart';
import 'package:flutter_cccd_vn/src/proto/can_key.dart';
import 'package:intl/intl.dart';
import 'cccd_verification_flow.dart';
class MrtdData {
EfCardAccess? cardAccess;
EfCardSecurity? cardSecurity;
EfCOM? com;
EfSOD? sod;
EfDG1? dg1;
EfDG2? dg2;
EfDG3? dg3;
EfDG4? dg4;
EfDG5? dg5;
EfDG6? dg6;
EfDG7? dg7;
EfDG8? dg8;
EfDG9? dg9;
EfDG10? dg10;
EfDG11? dg11;
EfDG12? dg12;
EfDG13? dg13;
EfDG14? dg14;
EfDG15? dg15;
EfDG16? dg16;
Uint8List? aaSig;
bool? isPACE;
bool? isDBA;
}
final Map<DgTag, String> dgTagToString = {
EfDG1.TAG: 'EF.DG1',
EfDG2.TAG: 'EF.DG2',
EfDG3.TAG: 'EF.DG3',
EfDG4.TAG: 'EF.DG4',
EfDG5.TAG: 'EF.DG5',
EfDG6.TAG: 'EF.DG6',
EfDG7.TAG: 'EF.DG7',
EfDG8.TAG: 'EF.DG8',
EfDG9.TAG: 'EF.DG9',
EfDG10.TAG: 'EF.DG10',
EfDG11.TAG: 'EF.DG11',
EfDG12.TAG: 'EF.DG12',
EfDG13.TAG: 'EF.DG13',
EfDG14.TAG: 'EF.DG14',
EfDG15.TAG: 'EF.DG15',
EfDG16.TAG: 'EF.DG16',
};
Widget _makeMrtdAccessDataWidget({
required String header,
required String collapsedText,
required bool isPACE,
required bool isDBA,
}) {
return ExpandablePanel(
theme: const ExpandableThemeData(
headerAlignment: ExpandablePanelHeaderAlignment.center,
tapBodyToCollapse: true,
hasIcon: true,
iconColor: Colors.red,
),
header: Text(header),
collapsed: Text(
collapsedText,
softWrap: true,
maxLines: 2,
overflow: TextOverflow.ellipsis,
),
expanded: Container(
padding: const EdgeInsets.all(18),
color: Color.fromARGB(255, 239, 239, 239),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Text(
'Access protocol: ${isPACE ? "PACE" : "BAC"}',
//style: TextStyle(fontSize: 16.0),
),
SizedBox(height: 8.0),
Text(
'Access key type: ${isDBA ? "DBA" : "CAN"}',
//style: TextStyle(fontSize: 16.0),
),
],
),
),
);
}
String formatEfCom(final EfCOM efCom) {
var str =
"version: ${efCom.version}\n"
"unicode version: ${efCom.unicodeVersion}\n"
"DG tags:";
for (final t in efCom.dgTags) {
try {
str += " ${dgTagToString[t]!}";
} catch (e) {
str += " 0x${t.value.toRadixString(16)}";
}
}
return str;
}
String formatMRZ(final MRZ mrz) {
return "MRZ\n"
" version: ${mrz.version}\n" +
" doc code: ${mrz.documentCode}\n" +
" doc No.: ${mrz.documentNumber}\n" +
" country: ${mrz.country}\n" +
" nationality: ${mrz.nationality}\n" +
" name: ${mrz.firstName}\n" +
" surname: ${mrz.lastName}\n" +
" gender: ${mrz.gender}\n" +
" date of birth: ${DateFormat.yMd().format(mrz.dateOfBirth)}\n" +
" date of expiry: ${DateFormat.yMd().format(mrz.dateOfExpiry)}\n" +
" add. data: ${mrz.optionalData}\n" +
" add. data: ${mrz.optionalData2}";
}
String formatDG15(final EfDG15 dg15) {
var str =
"EF.DG15:\n"
" AAPublicKey\n"
" type: ";
final rawSubPubKey = dg15.aaPublicKey.rawSubjectPublicKey();
if (dg15.aaPublicKey.type == AAPublicKeyType.RSA) {
final tvSubPubKey = TLV.fromBytes(rawSubPubKey);
var rawSeq = tvSubPubKey.value;
if (rawSeq[0] == 0x00) {
rawSeq = rawSeq.sublist(1);
}
final tvKeySeq = TLV.fromBytes(rawSeq);
final tvModule = TLV.decode(tvKeySeq.value);
final tvExp = TLV.decode(tvKeySeq.value.sublist(tvModule.encodedLen));
str +=
"RSA\n"
" exponent: ${tvExp.value.hex()}\n"
" modulus: ${tvModule.value.hex()}";
} else {
str += "EC\n SubjectPublicKey: ${rawSubPubKey.hex()}";
}
return str;
}
String formatProgressMsg(String message, int percentProgress) {
final p = (percentProgress / 20).round();
final full = "🟢 " * p;
final empty = "⚪️ " * (5 - p);
return message + "\n\n" + full + empty;
}
void main() {
Logger.root.level = Level.ALL;
Logger.root.logSensitiveData = false;
Logger.root.onRecord.listen((record) {
print(
'${record.loggerName} ${record.level.name}: ${record.time}: ${record.message}',
);
if (record.error != null) {
print(' error: ${record.error}');
}
if (record.stackTrace != null) {
print(' stackTrace:\n${record.stackTrace}');
}
});
runApp(MrtdEgApp());
}
class MrtdEgApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return PlatformApp(
localizationsDelegates: [
DefaultMaterialLocalizations.delegate,
DefaultCupertinoLocalizations.delegate,
DefaultWidgetsLocalizations.delegate,
],
material: (_, __) => MaterialAppData(),
cupertino: (_, __) => CupertinoAppData(),
home: MrtdHomePage(),
);
}
}
class MrtdHomePage extends StatefulWidget {
@override
// ignore: library_private_types_in_public_api
_MrtdHomePageState createState() => _MrtdHomePageState();
}
class _MrtdHomePageState extends State<MrtdHomePage>
with TickerProviderStateMixin {
var _alertMessage = "";
final _log = Logger("mrtdeg.app");
var _isNfcAvailable = false;
var _isReading = false;
final _mrzData = GlobalKey<FormState>();
final _canData = GlobalKey<FormState>();
// mrz data
final _docNumber = TextEditingController();
final _dob = TextEditingController(); // date of birth
final _doe = TextEditingController();
final _can = TextEditingController();
bool _checkBoxPACE = false;
MrtdData? _mrtdData;
final NfcProvider _nfc = NfcProvider();
// ignore: unused_field
late Timer _timerStateUpdater;
final _scrollController = ScrollController();
late final TabController _tabController;
@override
void initState() {
super.initState();
_tabController = TabController(length: 2, vsync: this);
//_tabController.addListener(_handleTabSelection);
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
_initPlatformState();
// Update platform state every 3 sec
_timerStateUpdater = Timer.periodic(Duration(seconds: 3), (Timer t) {
_initPlatformState();
});
}
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> _initPlatformState() async {
bool isNfcAvailable;
try {
NfcStatus status = await NfcProvider.nfcStatus;
isNfcAvailable = status == NfcStatus.enabled;
} on PlatformException {
isNfcAvailable = false;
}
// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) return;
setState(() {
_isNfcAvailable = isNfcAvailable;
});
}
@override
void dispose() {
_timerStateUpdater.cancel();
_scrollController.dispose();
_tabController.dispose();
super.dispose();
}
DateTime? _getDOBDate() {
if (_dob.text.isEmpty) {
return null;
}
return DateFormat.yMd().parse(_dob.text);
}
DateTime? _getDOEDate() {
if (_doe.text.isEmpty) {
return null;
}
return DateFormat.yMd().parse(_doe.text);
}
Future<String?> _pickDate(
BuildContext context,
DateTime firstDate,
DateTime initDate,
DateTime lastDate,
) async {
final locale = Localizations.localeOf(context);
final DateTime? picked = await showDatePicker(
context: context,
firstDate: firstDate,
initialDate: initDate,
lastDate: lastDate,
locale: locale,
);
if (picked != null) {
return DateFormat.yMd().format(picked);
}
return null;
}
void _buttonPressed() async {
print("Button pressed");
//Check on what tab we are
if (_tabController.index == 0) {
//DBA tab
String errorText = "";
if (_doe.text.isEmpty) {
errorText += "Please enter date of expiry!\n";
}
if (_dob.text.isEmpty) {
errorText += "Please enter date of birth!\n";
}
if (_docNumber.text.isEmpty) {
errorText += "Please enter passport number!";
}
setState(() {
_alertMessage = errorText;
});
//If there is an error, just jump out of the function
if (errorText.isNotEmpty) return;
final bacKeySeed = DBAKey(
_docNumber.text,
_getDOBDate()!,
_getDOEDate()!,
paceMode: _checkBoxPACE,
);
_readMRTD(accessKey: bacKeySeed, isPace: _checkBoxPACE);
} else {
//PACE tab
String errorText = "";
if (_can.text.isEmpty) {
errorText = "Please enter CAN number!";
} else if (_can.text.length != 6) {
errorText = "CAN number must be exactly 6 digits long!";
}
setState(() {
_alertMessage = errorText;
});
//If there is an error, just jump out of the function
if (errorText.isNotEmpty) return;
final canKeySeed = CanKey(_can.text);
_readMRTD(accessKey: canKeySeed, isPace: true);
}
}
void _readMRTD({required AccessKey accessKey, bool isPace = false}) async {
try {
setState(() {
_mrtdData = null;
_alertMessage = "Waiting for Passport tag ...";
_isReading = true;
});
try {
bool demo = false;
if (!demo) {
await _nfc.connect(
iosAlertMessage: "Hold your phone near Biometric Passport",
);
}
final passport = Passport(_nfc);
setState(() {
_alertMessage = "Reading Passport ...";
});
_nfc.setIosAlertMessage("Trying to read EF.CardAccess ...");
final mrtdData = MrtdData();
try {
mrtdData.cardAccess = await passport.readEfCardAccess();
} on PassportError {
//if (e.code != StatusWord.fileNotFound) rethrow;
}
_nfc.setIosAlertMessage("Trying to read EF.CardSecurity ...");
try {
//mrtdData.cardSecurity = await passport.readEfCardSecurity();
} on PassportError {
//if (e.code != StatusWord.fileNotFound) rethrow;
}
_nfc.setIosAlertMessage("Initiating session with PACE...");
//set MrtdData
mrtdData.isPACE = isPace;
mrtdData.isDBA = accessKey.PACE_REF_KEY_TAG == 0x01 ? true : false;
if (isPace) {
//PACE session
await passport.startSessionPACE(accessKey, mrtdData.cardAccess!);
} else {
//BAC session
await passport.startSession(accessKey as DBAKey);
}
_nfc.setIosAlertMessage(formatProgressMsg("Reading EF.COM ...", 0));
mrtdData.com = await passport.readEfCOM();
_nfc.setIosAlertMessage(
formatProgressMsg("Reading Data Groups ...", 20),
);
if (mrtdData.com!.dgTags.contains(EfDG1.TAG)) {
mrtdData.dg1 = await passport.readEfDG1();
}
if (mrtdData.com!.dgTags.contains(EfDG2.TAG)) {
mrtdData.dg2 = await passport.readEfDG2();
}
// To read DG3 and DG4 session has to be established with CVCA certificate (not supported).
// if(mrtdData.com!.dgTags.contains(EfDG3.TAG)) {
// mrtdData.dg3 = await passport.readEfDG3();
// }
// if(mrtdData.com!.dgTags.contains(EfDG4.TAG)) {
// mrtdData.dg4 = await passport.readEfDG4();
// }
if (mrtdData.com!.dgTags.contains(EfDG5.TAG)) {
mrtdData.dg5 = await passport.readEfDG5();
}
if (mrtdData.com!.dgTags.contains(EfDG6.TAG)) {
mrtdData.dg6 = await passport.readEfDG6();
}
if (mrtdData.com!.dgTags.contains(EfDG7.TAG)) {
mrtdData.dg7 = await passport.readEfDG7();
}
if (mrtdData.com!.dgTags.contains(EfDG8.TAG)) {
mrtdData.dg8 = await passport.readEfDG8();
}
if (mrtdData.com!.dgTags.contains(EfDG9.TAG)) {
mrtdData.dg9 = await passport.readEfDG9();
}
if (mrtdData.com!.dgTags.contains(EfDG10.TAG)) {
mrtdData.dg10 = await passport.readEfDG10();
}
if (mrtdData.com!.dgTags.contains(EfDG11.TAG)) {
mrtdData.dg11 = await passport.readEfDG11();
}
if (mrtdData.com!.dgTags.contains(EfDG12.TAG)) {
mrtdData.dg12 = await passport.readEfDG12();
}
if (mrtdData.com!.dgTags.contains(EfDG13.TAG)) {
mrtdData.dg13 = await passport.readEfDG13();
}
if (mrtdData.com!.dgTags.contains(EfDG14.TAG)) {
mrtdData.dg14 = await passport.readEfDG14();
}
if (mrtdData.com!.dgTags.contains(EfDG15.TAG)) {
mrtdData.dg15 = await passport.readEfDG15();
_nfc.setIosAlertMessage(formatProgressMsg("Doing AA ...", 60));
mrtdData.aaSig = await passport.activeAuthenticate(Uint8List(8));
}
if (mrtdData.com!.dgTags.contains(EfDG16.TAG)) {
mrtdData.dg16 = await passport.readEfDG16();
}
_nfc.setIosAlertMessage(formatProgressMsg("Reading EF.SOD ...", 80));
mrtdData.sod = await passport.readEfSOD();
setState(() {
_mrtdData = mrtdData;
});
setState(() {
_alertMessage = "";
});
_scrollController.animateTo(
300.0,
duration: Duration(milliseconds: 500),
curve: Curves.ease,
);
} on Exception catch (e) {
final se = e.toString().toLowerCase();
String alertMsg = "An error has occurred while reading Passport!";
if (e is PassportError) {
if (se.contains("security status not satisfied")) {
alertMsg =
"Failed to initiate session with passport.\nCheck input data!";
}
_log.error("PassportError: ${e.message}");
} else {
_log.error(
"An exception was encountered while trying to read Passport: $e",
);
}
if (se.contains('timeout')) {
alertMsg = "Timeout while waiting for Passport tag";
} else if (se.contains("tag was lost")) {
alertMsg = "Tag was lost. Please try again!";
} else if (se.contains("invalidated by user")) {
alertMsg = "";
}
setState(() {
_alertMessage = alertMsg;
});
} finally {
if (_alertMessage.isNotEmpty) {
await _nfc.disconnect(iosErrorMessage: _alertMessage);
} else {
await _nfc.disconnect(
iosAlertMessage: formatProgressMsg("Finished", 100),
);
}
setState(() {
_isReading = false;
});
}
} on Exception catch (e) {
_log.error("Read MRTD error: $e");
}
}
// ignore: unused_element
void _readMRTDOld() async {
try {
setState(() {
_mrtdData = null;
_alertMessage = "Waiting for Passport tag ...";
_isReading = true;
});
await _nfc.connect(
iosAlertMessage: "Hold your phone near Biometric Passport",
);
final passport = Passport(_nfc);
setState(() {
_alertMessage = "Reading Passport ...";
});
_nfc.setIosAlertMessage("Trying to read EF.CardAccess ...");
final mrtdData = MrtdData();
try {
mrtdData.cardAccess = await passport.readEfCardAccess();
} on PassportError {
//if (e.code != StatusWord.fileNotFound) rethrow;
}
_nfc.setIosAlertMessage("Trying to read EF.CardSecurity ...");
try {
mrtdData.cardSecurity = await passport.readEfCardSecurity();
} on PassportError {
//if (e.code != StatusWord.fileNotFound) rethrow;
}
_nfc.setIosAlertMessage("Initiating session ...");
final bacKeySeed = DBAKey(
_docNumber.text,
_getDOBDate()!,
_getDOEDate()!,
);
await passport.startSession(bacKeySeed);
_nfc.setIosAlertMessage(formatProgressMsg("Reading EF.COM ...", 0));
mrtdData.com = await passport.readEfCOM();
_nfc.setIosAlertMessage(formatProgressMsg("Reading Data Groups ...", 20));
if (mrtdData.com!.dgTags.contains(EfDG1.TAG)) {
mrtdData.dg1 = await passport.readEfDG1();
}
if (mrtdData.com!.dgTags.contains(EfDG2.TAG)) {
mrtdData.dg2 = await passport.readEfDG2();
}
// To read DG3 and DG4 session has to be established with CVCA certificate (not supported).
// if(mrtdData.com!.dgTags.contains(EfDG3.TAG)) {
// mrtdData.dg3 = await passport.readEfDG3();
// }
// if(mrtdData.com!.dgTags.contains(EfDG4.TAG)) {
// mrtdData.dg4 = await passport.readEfDG4();
// }
if (mrtdData.com!.dgTags.contains(EfDG5.TAG)) {
mrtdData.dg5 = await passport.readEfDG5();
}
if (mrtdData.com!.dgTags.contains(EfDG6.TAG)) {
mrtdData.dg6 = await passport.readEfDG6();
}
if (mrtdData.com!.dgTags.contains(EfDG7.TAG)) {
mrtdData.dg7 = await passport.readEfDG7();
}
if (mrtdData.com!.dgTags.contains(EfDG8.TAG)) {
mrtdData.dg8 = await passport.readEfDG8();
}
if (mrtdData.com!.dgTags.contains(EfDG9.TAG)) {
mrtdData.dg9 = await passport.readEfDG9();
}
if (mrtdData.com!.dgTags.contains(EfDG10.TAG)) {
mrtdData.dg10 = await passport.readEfDG10();
}
if (mrtdData.com!.dgTags.contains(EfDG11.TAG)) {
mrtdData.dg11 = await passport.readEfDG11();
}
if (mrtdData.com!.dgTags.contains(EfDG12.TAG)) {
mrtdData.dg12 = await passport.readEfDG12();
}
if (mrtdData.com!.dgTags.contains(EfDG13.TAG)) {
mrtdData.dg13 = await passport.readEfDG13();
}
if (mrtdData.com!.dgTags.contains(EfDG14.TAG)) {
mrtdData.dg14 = await passport.readEfDG14();
}
if (mrtdData.com!.dgTags.contains(EfDG15.TAG)) {
mrtdData.dg15 = await passport.readEfDG15();
_nfc.setIosAlertMessage(formatProgressMsg("Doing AA ...", 60));
mrtdData.aaSig = await passport.activeAuthenticate(Uint8List(8));
}
if (mrtdData.com!.dgTags.contains(EfDG16.TAG)) {
mrtdData.dg16 = await passport.readEfDG16();
}
_nfc.setIosAlertMessage(formatProgressMsg("Reading EF.SOD ...", 80));
mrtdData.sod = await passport.readEfSOD();
setState(() {
_mrtdData = mrtdData;
});
setState(() {
_alertMessage = "";
});
_scrollController.animateTo(
300.0,
duration: Duration(milliseconds: 500),
curve: Curves.ease,
);
} on Exception catch (e) {
final se = e.toString().toLowerCase();
String alertMsg = "An error has occurred while reading Passport!";
if (e is PassportError) {
if (se.contains("security status not satisfied")) {
alertMsg =
"Failed to initiate session with passport.\nCheck input data!";
}
_log.error("PassportError: ${e.message}");
} else {
_log.error(
"An exception was encountered while trying to read Passport: $e",
);
}
if (se.contains('timeout')) {
alertMsg = "Timeout while waiting for Passport tag";
} else if (se.contains("tag was lost")) {
alertMsg = "Tag was lost. Please try again!";
} else if (se.contains("invalidated by user")) {
alertMsg = "";
}
setState(() {
_alertMessage = alertMsg;
});
} finally {
if (_alertMessage.isNotEmpty) {
await _nfc.disconnect(iosErrorMessage: _alertMessage);
} else {
await _nfc.disconnect(
iosAlertMessage: formatProgressMsg("Finished", 100),
);
}
setState(() {
_isReading = false;
});
}
}
@override
Widget build(BuildContext context) {
return PlatformProvider(
builder: (BuildContext context) => _buildPage(context),
);
}
bool _disabledInput() {
//return true;
return _isReading || !_isNfcAvailable;
}
Widget _makeMrtdDataWidget({
required String header,
required String collapsedText,
required dataText,
}) {
return ExpandablePanel(
theme: const ExpandableThemeData(
headerAlignment: ExpandablePanelHeaderAlignment.center,
tapBodyToCollapse: true,
hasIcon: true,
iconColor: Colors.red,
),
header: Text(header),
collapsed: Text(
collapsedText,
softWrap: true,
maxLines: 2,
overflow: TextOverflow.ellipsis,
),
expanded: Container(
padding: const EdgeInsets.all(18),
color: Color.fromARGB(255, 239, 239, 239),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
PlatformTextButton(
child: Text('Copy'),
onPressed: () => Clipboard.setData(ClipboardData(text: dataText)),
padding: const EdgeInsets.all(8),
),
SelectableText(dataText, textAlign: TextAlign.left),
],
),
),
);
}
List<Widget> _mrtdDataWidgets() {
List<Widget> list = [];
if (_mrtdData == null) return list;
if (_mrtdData!.isPACE != null && _mrtdData!.isDBA != null) {
list.add(
_makeMrtdAccessDataWidget(
header: "Access protocol",
collapsedText: '',
isDBA: _mrtdData!.isDBA!,
isPACE: _mrtdData!.isPACE!,
),
);
}
if (_mrtdData!.cardAccess != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.CardAccess',
collapsedText: '',
dataText: _mrtdData!.cardAccess!.toBytes().hex(),
),
);
}
if (_mrtdData!.cardSecurity != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.CardSecurity',
collapsedText: '',
dataText: _mrtdData!.cardSecurity!.toBytes().hex(),
),
);
}
if (_mrtdData!.sod != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.SOD',
collapsedText: '',
dataText: _mrtdData!.sod!.toBytes().hex(),
),
);
}
if (_mrtdData!.com != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.COM',
collapsedText: '',
dataText: formatEfCom(_mrtdData!.com!),
),
);
}
if (_mrtdData!.dg1 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG1',
collapsedText: '',
dataText: formatMRZ(_mrtdData!.dg1!.mrz),
),
);
}
if (_mrtdData!.dg2 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG2',
collapsedText: '',
dataText: _mrtdData!.dg2!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg3 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG3',
collapsedText: '',
dataText: _mrtdData!.dg3!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg4 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG4',
collapsedText: '',
dataText: _mrtdData!.dg4!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg5 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG5',
collapsedText: '',
dataText: _mrtdData!.dg5!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg6 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG6',
collapsedText: '',
dataText: _mrtdData!.dg6!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg7 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG7',
collapsedText: '',
dataText: _mrtdData!.dg7!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg8 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG8',
collapsedText: '',
dataText: _mrtdData!.dg8!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg9 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG9',
collapsedText: '',
dataText: _mrtdData!.dg9!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg10 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG10',
collapsedText: '',
dataText: _mrtdData!.dg10!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg11 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG11',
collapsedText: '',
dataText: _mrtdData!.dg11!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg12 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG12',
collapsedText: '',
dataText: _mrtdData!.dg12!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg13 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG13',
collapsedText: '',
dataText: _mrtdData!.dg13!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg14 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG14',
collapsedText: '',
dataText: _mrtdData!.dg14!.toBytes().hex(),
),
);
}
if (_mrtdData!.dg15 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG15',
collapsedText: '',
dataText: _mrtdData!.dg15!.toBytes().hex(),
),
);
}
if (_mrtdData!.aaSig != null) {
list.add(
_makeMrtdDataWidget(
header: 'Active Authentication signature',
collapsedText: '',
dataText: _mrtdData!.aaSig!.hex(),
),
);
}
if (_mrtdData!.dg16 != null) {
list.add(
_makeMrtdDataWidget(
header: 'EF.DG16',
collapsedText: '',
dataText: _mrtdData!.dg16!.toBytes().hex(),
),
);
}
return list;
}
PlatformScaffold _buildPage(BuildContext context) => PlatformScaffold(
appBar: PlatformAppBar(title: const Text('CCCD NFC Demo')),
iosContentPadding: false,
iosContentBottomPadding: false,
body: Material(
child: SafeArea(
child: SingleChildScrollView(
controller: _scrollController,
padding: const EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
_buildHeroCard(context),
const SizedBox(height: 24),
Text(
'CÔNG CỤ KHÁC',
style: TextStyle(
fontSize: 12,
fontWeight: FontWeight.w600,
color: Colors.grey.shade600,
letterSpacing: 0.6,
),
),
const SizedBox(height: 8),
_buildLegacyPassportCard(context),
],
),
),
),
),
);
Widget _buildHeroCard(BuildContext context) {
return Container(
padding: const EdgeInsets.all(24),
decoration: BoxDecoration(
gradient: const LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [Color(0xFF0D47A1), Color(0xFF1976D2)],
),
borderRadius: BorderRadius.circular(24),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.15),
shape: BoxShape.circle,
),
child: const Icon(Icons.credit_card, color: Colors.white, size: 26),
),
const SizedBox(height: 16),
const Text(
'Xác minh CCCD gắn chip',
style: TextStyle(
color: Colors.white,
fontSize: 20,
fontWeight: FontWeight.bold,
),
),
const SizedBox(height: 6),
Text(
'Chụp mặt trước, mặt sau → OCR → quét NFC → đọc dữ liệu chip.',
style: TextStyle(
color: Colors.white.withValues(alpha: 0.85),
fontSize: 13,
height: 1.4,
),
),
const SizedBox(height: 16),
Container(
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
decoration: BoxDecoration(
color: Colors.white.withValues(alpha: 0.15),
borderRadius: BorderRadius.circular(20),
),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
_isNfcAvailable ? Icons.nfc : Icons.nfc_outlined,
size: 14,
color: Colors.white,
),
const SizedBox(width: 6),
Text(
_isNfcAvailable ? 'NFC sẵn sàng' : 'NFC không khả dụng',
style: const TextStyle(color: Colors.white, fontSize: 12),
),
],
),
),
const SizedBox(height: 20),
SizedBox(
width: double.infinity,
child: FilledButton.icon(
style: FilledButton.styleFrom(
backgroundColor: Colors.white,
foregroundColor: const Color(0xFF0D47A1),
padding: const EdgeInsets.symmetric(vertical: 14),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(14),
),
),
onPressed: () => Navigator.of(context).push(
MaterialPageRoute<void>(
builder: (_) => const CccdVerificationPage(),
),
),
icon: const Icon(Icons.arrow_forward),
label: const Text(
'Bắt đầu xác minh',
style: TextStyle(fontWeight: FontWeight.bold),
),
),
),
],
),
);
}
Widget _buildLegacyPassportCard(BuildContext context) {
return Container(
decoration: BoxDecoration(
border: Border.all(color: Colors.grey.shade300),
borderRadius: BorderRadius.circular(16),
),
child: Theme(
data: Theme.of(context).copyWith(dividerColor: Colors.transparent),
child: ExpansionTile(
tilePadding: const EdgeInsets.symmetric(horizontal: 16),
leading: const Icon(Icons.flight_takeoff_outlined),
title: const Text(
'Đọc hộ chiếu quốc tế (nâng cao)',
style: TextStyle(fontWeight: FontWeight.w600, fontSize: 14),
),
subtitle: const Text(
'DBA / PACE — kiểm thử thư viện dmrtd gốc',
style: TextStyle(fontSize: 12),
),
childrenPadding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
children: [
_buildForm(context),
const SizedBox(height: 16),
SizedBox(
width: double.infinity,
child: PlatformElevatedButton(
onPressed: _buttonPressed,
child: PlatformText(
_isReading ? 'Reading ...' : 'Read Passport',
),
),
),
if (_alertMessage.isNotEmpty) ...[
const SizedBox(height: 16),
Text(
_alertMessage,
textAlign: TextAlign.center,
style: const TextStyle(
fontSize: 14,
fontWeight: FontWeight.bold,
),
),
],
if (_mrtdData != null) ...[
const SizedBox(height: 16),
const Text(
'Passport Data:',
style: TextStyle(fontSize: 14, fontWeight: FontWeight.bold),
),
Padding(
padding: const EdgeInsets.only(top: 8),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: _mrtdDataWidgets(),
),
),
],
],
),
),
);
}
Widget _buildForm(BuildContext context) {
return Column(
children: <Widget>[
TabBar(
controller: _tabController,
labelColor: Colors.blue,
tabs: const <Widget>[
Tab(text: 'DBA'),
Tab(text: 'PACE'),
],
),
Container(
height: 350,
child: TabBarView(
controller: _tabController,
children: <Widget>[
Card(
borderOnForeground: false,
elevation: 0,
color: Colors.white,
//shadowColor: Colors.white,
margin: const EdgeInsets.all(16.0),
child: Form(
key: _mrzData,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
TextFormField(
enabled: !_disabledInput(),
controller: _docNumber,
decoration: const InputDecoration(
border: OutlineInputBorder(),
labelText: 'Passport number',
fillColor: Colors.white,
),
inputFormatters: <TextInputFormatter>[
FilteringTextInputFormatter.allow(
RegExp(r'[A-Z0-9]+'),
),
LengthLimitingTextInputFormatter(14),
],
textInputAction: TextInputAction.done,
textCapitalization: TextCapitalization.characters,
autofocus: true,
validator: (value) {
if (value?.isEmpty ?? false) {
return 'Please enter passport number';
}
return null;
},
),
SizedBox(height: 12),
TextFormField(
enabled: !_disabledInput(),
controller: _dob,
decoration: const InputDecoration(
border: OutlineInputBorder(),
labelText: 'Date of Birth',
fillColor: Colors.white,
),
autofocus: false,
validator: (value) {
if (value?.isEmpty ?? false) {
return 'Please select Date of Birth';
}
return null;
},
onTap: () async {
FocusScope.of(context).requestFocus(FocusNode());
// Can pick date which dates 15 years back or more
final now = DateTime.now();
final firstDate = DateTime(
now.year - 90,
now.month,
now.day,
);
final lastDate = DateTime(
now.year - 15,
now.month,
now.day,
);
final initDate = _getDOBDate();
final date = await _pickDate(
context,
firstDate,
initDate ?? lastDate,
lastDate,
);
FocusScope.of(context).requestFocus(FocusNode());
if (date != null) {
_dob.text = date;
}
},
),
SizedBox(height: 12),
TextFormField(
enabled: !_disabledInput(),
controller: _doe,
decoration: const InputDecoration(
border: OutlineInputBorder(),
labelText: 'Date of Expiry',
fillColor: Colors.white,
),
autofocus: false,
validator: (value) {
if (value?.isEmpty ?? false) {
return 'Please select Date of Expiry';
}
return null;
},
onTap: () async {
FocusScope.of(context).requestFocus(FocusNode());
// Can pick date from tomorrow and up to 10 years
final now = DateTime.now();
final firstDate = DateTime(
now.year,
now.month,
now.day + 1,
);
final lastDate = DateTime(
now.year + 10,
now.month + 6,
now.day,
);
final initDate = _getDOEDate();
final date = await _pickDate(
context,
firstDate,
initDate ?? firstDate,
lastDate,
);
FocusScope.of(context).requestFocus(FocusNode());
if (date != null) {
_doe.text = date;
}
},
),
SizedBox(height: 12),
CheckboxListTile(
title: Text('DBA with PACE'),
value: _checkBoxPACE,
onChanged: (newValue) {
setState(() {
_checkBoxPACE = !_checkBoxPACE;
});
},
),
],
),
),
),
Card(
borderOnForeground: false,
elevation: 0,
color: Colors.white,
//shadowColor: Colors.white,
margin: const EdgeInsets.all(16.0),
child: Form(
key: _canData,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
TextFormField(
enabled: !_disabledInput(),
controller: _can,
decoration: const InputDecoration(
border: OutlineInputBorder(),
labelText: 'CAN number',
fillColor: Colors.white,
),
inputFormatters: <TextInputFormatter>[
FilteringTextInputFormatter.allow(RegExp(r'[0-9]+')),
LengthLimitingTextInputFormatter(6),
],
textInputAction: TextInputAction.done,
textCapitalization: TextCapitalization.characters,
autofocus: true,
validator: (value) {
if (value?.isEmpty ?? false) {
return 'Please enter CAN number';
}
return null;
},
),
],
),
),
),
],
),
),
],
);
}
}Metadata
1
likes
120
points
0
downloads
Documentation
Publisher
unverified uploader
Weekly Downloads
Metadata
ICAO Doc 9303 MRTD (biometric passport) Dart library with a Vietnamese CCCD (căn cước công dân) NFC reading adapter — BAC/PACE, OCR-driven credentials, and a typed CCCD data/verification API.
Repository (GitHub)
View/report issues
Topics
#nfc #passport #mrtd #icao #cccd
License
unknown (license)
Dependencies
archive, collection, convert, crypto, crypto_keys_plus, diffie_hellman, expandable, fixnum, flutter_nfc_kit, logging, meta, pointycastle, tripledes_nullsafety