diff --git a/android/app/build.gradle b/android/app/build.gradle
index f11b3df..01c6690 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -25,6 +25,10 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
+def keystorePropertiesFile = rootProject.file("key.properties")
+def keystoreProperties = new Properties()
+keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+
 android {
     compileSdkVersion flutter.compileSdkVersion
 
@@ -42,14 +46,30 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "site.zhchain.chat"
-        minSdkVersion flutter.minSdkVersion
+        // minSdkVersion flutter.minSdkVersion
+        minSdkVersion 21
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
 
+    signingConfigs {
+        release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+
+        debug {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+    }
+
     buildTypes {
         release {
             // TODO: Add your own signing config for the release build.
@@ -57,6 +77,18 @@ android {
             signingConfig signingConfigs.debug
         }
     }
+
+    repositories {
+        flatDir {
+            dirs 'libs'
+        }
+    }
+
+    // 打包失败，加的配置
+    lintOptions {
+        checkReleaseBuilds false
+        abortOnError false
+    }
 }
 
 flutter {
diff --git a/android/app/key/key.md b/android/app/key/key.md
new file mode 100755
index 0000000..0a38a19
--- /dev/null
+++ b/android/app/key/key.md
@@ -0,0 +1,10 @@
+别名 jzbg
+
+密码 zhchain
+
+keytool -genkey -alias jzbg -keyalg RSA -keysize 2048 -validity 36500 -keystore jzbg.keystore
+keytool -list -v -keystore jzbg.keystore
+
+应用签名 ef8ecfa4e4ddae833195fd53ac9fc0b1
+MD5     EF:8E:CF:A4:E4:DD:AE:83:31:95:FD:53:AC:9F:C0:B1
+SHA1    0D:4C:73:E3:8D:AF:6B:D3:A3:07:0E:A4:2C:BB:BD:C8:EA:EA:17:AE
\ No newline at end of file
diff --git a/assets/transits/1.png b/assets/transits/1.png
new file mode 100644
index 0000000..d79b362
Binary files /dev/null and b/assets/transits/1.png differ
diff --git a/assets/transits/2.png b/assets/transits/2.png
new file mode 100644
index 0000000..262e73d
Binary files /dev/null and b/assets/transits/2.png differ
diff --git a/lib/routes/auth_routes.dart b/lib/routes/auth_routes.dart
index 5dc0a16..ade6975 100644
--- a/lib/routes/auth_routes.dart
+++ b/lib/routes/auth_routes.dart
@@ -1,10 +1,16 @@
 import 'package:chat/middleware/auth_middleware.dart';
-import 'package:chat/views/auth/index_page.dart';
+import 'package:chat/views/auth/create/index_page.dart';
+import 'package:chat/views/auth/create/verify_page.dart';
+import 'package:chat/views/auth/import/index_page.dart';
+import 'package:chat/views/auth/index/index_page.dart';
 import 'package:get/get.dart';
 
 abstract class AuthRoutes {
   /// 身份验证页面
   static const String index = '/auth';
+  static const String create = '/auth/create';
+  static const String createVerify = '/auth/create/verify';
+  static const String import = '/auth/import';
 
   static GetPage router = GetPage(
     name: AuthRoutes.index,
@@ -12,5 +18,21 @@ abstract class AuthRoutes {
       EnsureNotAuthMiddleware(),
     ],
     page: () => const AuthPage(),
+    children: [
+      GetPage(
+        name: '/create',
+        page: () => const AuthCreatePage(),
+        children: [
+          GetPage(
+            name: '/verify',
+            page: () => const AuthCreateVerifyPage(),
+          ),
+        ],
+      ),
+      GetPage(
+        name: '/import',
+        page: () => const AuthImportPage(),
+      ),
+    ],
   );
 }
diff --git a/lib/utils/hd_wallet.dart b/lib/utils/hd_wallet.dart
new file mode 100644
index 0000000..b2fecb7
--- /dev/null
+++ b/lib/utils/hd_wallet.dart
@@ -0,0 +1,47 @@
+import 'dart:typed_data';
+
+import 'package:bip32/bip32.dart' as bip32;
+import 'package:bip39_multi_language/bip39.dart' as bip39;
+import 'package:chat/utils/ui_tools.dart';
+import 'package:fast_base58/fast_base58.dart';
+import 'package:hash/hash.dart';
+
+class HDWallet {
+  /// 将助记词转换成BTY地址
+  static String? mnemonicToAddress(String mnemonic) {
+    var li = mnemonic.split(' ');
+    li.removeWhere((e) => e.isEmpty);
+    mnemonic = li.join(' ');
+
+    if (!bip39.validateMnemonic(
+      mnemonic,
+      language: _languageDetect('mnemonic'),
+    )) {
+      UiTools.toast('不符合标准的助记词');
+      return null;
+    }
+
+    var seed = bip39.mnemonicToSeed(mnemonic);
+    var root = bip32.BIP32.fromSeed(seed);
+    var child = root.derivePath("m/44'/13107'/0'/0/0");
+    var step3 = SHA256().update(child.publicKey).digest();
+    List<int> step4 = List.from(RIPEMD160().update(step3).digest());
+    step4.insert(0, 0x00);
+    List<int> step5 = step4;
+    Uint8List step6 = SHA256().update(step5).digest();
+    Uint8List step7 = SHA256().update(step6).digest();
+    step5.addAll(step7.sublist(0, 4));
+    Uint8List step8 = Uint8List.fromList(step5);
+
+    return Base58Encode(step8);
+  }
+
+  /// 判断是否是英文助记词
+  static String _languageDetect(String str) {
+    if (str.startsWith(RegExp(r'[a-z]'))) {
+      return 'english';
+    } else {
+      return 'chinese';
+    }
+  }
+}
diff --git a/lib/utils/ui_tools.dart b/lib/utils/ui_tools.dart
new file mode 100644
index 0000000..c154262
--- /dev/null
+++ b/lib/utils/ui_tools.dart
@@ -0,0 +1,15 @@
+import 'package:chat/configs/app_colors.dart';
+import 'package:fluttertoast/fluttertoast.dart';
+
+class UiTools {
+  /// 普通的消息提醒
+  static void toast(String message) {
+    Fluttertoast.showToast(
+      msg: message,
+      gravity: ToastGravity.CENTER,
+      toastLength: Toast.LENGTH_SHORT,
+      backgroundColor: AppColors.active.withAlpha(0x90),
+      fontSize: 14,
+    );
+  }
+}
diff --git a/lib/views/auth/create/index_page.dart b/lib/views/auth/create/index_page.dart
new file mode 100644
index 0000000..32d06e9
--- /dev/null
+++ b/lib/views/auth/create/index_page.dart
@@ -0,0 +1,172 @@
+import 'package:bip39_multi_language/bip39.dart' as bip39;
+import 'package:chat/configs/app_colors.dart';
+import 'package:chat/routes/auth_routes.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class AuthCreatePage extends StatefulWidget {
+  const AuthCreatePage({Key? key}) : super(key: key);
+
+  @override
+  State<AuthCreatePage> createState() => _AuthCreatePageState();
+}
+
+class _AuthCreatePageState extends State<AuthCreatePage>
+    with SingleTickerProviderStateMixin {
+  late final TabController _tabController;
+
+  List<String> _englishMnemonic = [];
+  List<String> _chineseMnemonic = [];
+
+  @override
+  void initState() {
+    super.initState();
+    _tabController = TabController(
+      length: 2,
+      vsync: this,
+    );
+    _generateMnemonic();
+  }
+
+  void _generateMnemonic() {
+    String _englishBip39Str = bip39.generateMnemonic(language: 'english');
+    String _chineseBip39Str = bip39.generateMnemonic(language: 'chinese');
+
+    setState(() {
+      _englishMnemonic = _englishBip39Str.split(' ');
+      _chineseMnemonic = _chineseBip39Str.split(' ');
+    });
+  }
+
+  @override
+  void dispose() {
+    _tabController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('备份助记词'),
+        actions: [
+          TextButton(
+            onPressed: () {},
+            child: const Text('跳过备份'),
+          ),
+        ],
+      ),
+      body: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            mainAxisAlignment: MainAxisAlignment.spaceBetween,
+            children: [
+              TabBar(
+                controller: _tabController,
+                isScrollable: true,
+                indicatorColor: AppColors.primary,
+                indicatorWeight: 5,
+                indicatorSize: TabBarIndicatorSize.label,
+                tabs: const [
+                  Tab(
+                    text: 'English',
+                  ),
+                  Tab(
+                    text: '中文',
+                  ),
+                ],
+              ),
+              const Padding(
+                padding: EdgeInsets.only(right: 8.0),
+                child: Text(
+                  '请务必抄下助记词，确定之后将进行校验',
+                  style: TextStyle(
+                    fontSize: 12,
+                  ),
+                ),
+              ),
+            ],
+          ),
+          Expanded(
+            child: TabBarView(
+              controller: _tabController,
+              children: [
+                _moArea(_englishMnemonic),
+                _moArea(_chineseMnemonic),
+              ],
+            ),
+          ),
+          Container(
+            height: Get.height * 0.382,
+            padding: const EdgeInsets.all(16),
+            child: const Text(
+              '提示：请勿截图！如果有人获取您的助记词将直接获取您的资产，请抄写助记词并存放在安全的地方，我们会在下一屏幕进行校验，',
+            ),
+          ),
+          Row(
+            mainAxisAlignment: MainAxisAlignment.spaceAround,
+            children: [
+              ElevatedButton(
+                onPressed: () {
+                  _generateMnemonic();
+                },
+                child: const Text('更换助记词'),
+              ),
+              ElevatedButton(
+                onPressed: () {
+                  var language = _tabController.index;
+                  Get.toNamed(
+                    AuthRoutes.createVerify,
+                    arguments: {
+                      'language': language == 0 ? 'english' : 'chinese',
+                      'mnemonic':
+                          language == 0 ? _englishMnemonic : _chineseMnemonic
+                    },
+                  );
+                },
+                child: const Text('开始备份'),
+              ),
+            ],
+          ),
+          const SizedBox(
+            height: 16,
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _moArea(List<String> mnemonic) {
+    return Padding(
+      padding: const EdgeInsets.all(16.0),
+      child: GridView.builder(
+        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+          crossAxisCount: 2,
+          childAspectRatio: 4.5 / 1,
+          crossAxisSpacing: 8,
+          mainAxisSpacing: 8,
+        ),
+        itemCount: mnemonic.length,
+        itemBuilder: (_, i) {
+          return Container(
+            padding: const EdgeInsets.all(8),
+            decoration: BoxDecoration(
+              border: Border.all(
+                color: AppColors.border,
+                width: 1,
+              ),
+              borderRadius: BorderRadius.circular(8),
+            ),
+            child: Text(
+              '${i + 1}. ${mnemonic[i]}',
+              style: const TextStyle(
+                fontSize: 16,
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+}
diff --git a/lib/views/auth/create/verify_page.dart b/lib/views/auth/create/verify_page.dart
new file mode 100644
index 0000000..5f10977
--- /dev/null
+++ b/lib/views/auth/create/verify_page.dart
@@ -0,0 +1,65 @@
+import 'package:chat/configs/app_colors.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class AuthCreateVerifyPage extends StatefulWidget {
+  const AuthCreateVerifyPage({Key? key}) : super(key: key);
+
+  @override
+  _AuthCreateVerifyPageState createState() => _AuthCreateVerifyPageState();
+}
+
+class _AuthCreateVerifyPageState extends State<AuthCreateVerifyPage> {
+  late final List<String> _mnemonicList;
+  @override
+  void initState() {
+    super.initState();
+    Get.arguments['language'];
+    var m = Get.arguments['mnemonic'] as List<String>;
+    m.shuffle();
+    _mnemonicList = m;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('校验助记词'),
+      ),
+      body: _moArea(_mnemonicList),
+    );
+  }
+
+  Widget _moArea(List<String> mnemonic) {
+    return Padding(
+      padding: const EdgeInsets.all(16.0),
+      child: GridView.builder(
+        gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
+          crossAxisCount: 2,
+          childAspectRatio: 4.5 / 1,
+          crossAxisSpacing: 8,
+          mainAxisSpacing: 8,
+        ),
+        itemCount: mnemonic.length,
+        itemBuilder: (_, i) {
+          return Container(
+            padding: const EdgeInsets.all(8),
+            decoration: BoxDecoration(
+              border: Border.all(
+                color: AppColors.border,
+                width: 1,
+              ),
+              borderRadius: BorderRadius.circular(8),
+            ),
+            child: Text(
+              '${i + 1}. ${mnemonic[i]}',
+              style: const TextStyle(
+                fontSize: 16,
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+}
diff --git a/lib/views/auth/import/index_page.dart b/lib/views/auth/import/index_page.dart
new file mode 100644
index 0000000..e209113
--- /dev/null
+++ b/lib/views/auth/import/index_page.dart
@@ -0,0 +1,58 @@
+import 'package:chat/configs/app_colors.dart';
+import 'package:chat/utils/hd_wallet.dart';
+import 'package:flutter/material.dart';
+
+class AuthImportPage extends StatefulWidget {
+  const AuthImportPage({Key? key}) : super(key: key);
+
+  @override
+  State<AuthImportPage> createState() => _AuthImportPageState();
+}
+
+class _AuthImportPageState extends State<AuthImportPage> {
+  final TextEditingController _editingController = TextEditingController();
+
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    _editingController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('导入账户'),
+      ),
+      body: Column(
+        children: [
+          TextField(
+            controller: _editingController,
+            maxLines: 4,
+            decoration: const InputDecoration(
+              hintText: '请输入您的助记词',
+              border: OutlineInputBorder(
+                borderSide: BorderSide(
+                  color: AppColors.border,
+                  width: 0.4,
+                ),
+              ),
+            ),
+          ),
+          const Text('支持导入所有遵循BIP标准生成的助记词'),
+          ElevatedButton(
+            onPressed: () {
+              HDWallet.mnemonicToAddress(_editingController.text);
+            },
+            child: const Text('开始导入'),
+          ),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/views/auth/index/index_page.dart b/lib/views/auth/index/index_page.dart
new file mode 100644
index 0000000..9e8514d
--- /dev/null
+++ b/lib/views/auth/index/index_page.dart
@@ -0,0 +1,37 @@
+import 'package:chat/routes/auth_routes.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class AuthPage extends StatefulWidget {
+  const AuthPage({Key? key}) : super(key: key);
+
+  @override
+  State<AuthPage> createState() => _AuthPageState();
+}
+
+class _AuthPageState extends State<AuthPage> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('ZH-CHAT'),
+      ),
+      body: Column(
+        children: [
+          ElevatedButton(
+            onPressed: () {
+              Get.toNamed(AuthRoutes.create);
+            },
+            child: const Text('创建账户'),
+          ),
+          ElevatedButton(
+            onPressed: () {
+              Get.toNamed(AuthRoutes.import);
+            },
+            child: const Text('导入账户'),
+          ),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/views/auth/index_page.dart b/lib/views/auth/index_page.dart
deleted file mode 100644
index 46a0d87..0000000
--- a/lib/views/auth/index_page.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-import 'package:flutter/material.dart';
-
-class AuthPage extends StatefulWidget {
-  const AuthPage({Key? key}) : super(key: key);
-
-  @override
-  State<AuthPage> createState() => _AuthPageState();
-}
-
-class _AuthPageState extends State<AuthPage> {
-  @override
-  Widget build(BuildContext context) {
-    return Container();
-  }
-}
diff --git a/lib/views/public/transit_page.dart b/lib/views/public/transit_page.dart
index 665d494..8267a1e 100644
--- a/lib/views/public/transit_page.dart
+++ b/lib/views/public/transit_page.dart
@@ -15,12 +15,24 @@ class TransitPage extends StatefulWidget {
 
 /// 这里的加载图片，应该是可以请求网络图片的，但是要考虑网络图片的加载周期，还有网络环境因素等
 class _TransitPageState extends State<TransitPage> {
-  final int _leftTime = 5;
+  int _leftTime = 5;
   late Timer _timer;
 
   @override
   void initState() {
     super.initState();
+
+    _timer = Timer.periodic(const Duration(seconds: 1), (Timer timer) {
+      if (mounted) {
+        setState(() {
+          _leftTime--;
+        });
+      }
+      if (_leftTime <= 0) {
+        timer.cancel();
+        _jumpToRootPage();
+      }
+    });
   }
 
   void _jumpToRootPage() {
diff --git a/pubspec.lock b/pubspec.lock
index a92e887..a804644 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -15,20 +15,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.2"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.3.1"
-  asn1lib:
-    dependency: transitive
-    description:
-      name: asn1lib
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.2.0"
   async:
     dependency: transitive
     description:
@@ -43,6 +29,22 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.0"
+  bip32:
+    dependency: "direct main"
+    description:
+      name: bip32
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0"
+  bip39_multi_language:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: master
+      resolved-ref: d6ad5f0f7e98d421090e501e39646054b310dd89
+      url: "https://github.com/cjango/dart-bip39-multi-language.git"
+    source: git
+    version: "1.0.7"
   boolean_selector:
     dependency: transitive
     description:
@@ -50,6 +52,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.0"
+  bs58check:
+    dependency: transitive
+    description:
+      name: bs58check
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.2"
   cached_network_image:
     dependency: "direct main"
     description:
@@ -107,7 +116,7 @@ packages:
     source: hosted
     version: "3.1.0"
   crypto:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: crypto
       url: "https://pub.flutter-io.cn"
@@ -134,13 +143,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.6"
-  encrypt:
-    dependency: "direct main"
-    description:
-      name: encrypt
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "5.0.1"
   fake_async:
     dependency: transitive
     description:
@@ -148,6 +150,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.2.0"
+  fast_base58:
+    dependency: "direct main"
+    description:
+      name: fast_base58
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.1"
   ffi:
     dependency: transitive
     description:
@@ -254,6 +263,20 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.3"
+  hash:
+    dependency: "direct main"
+    description:
+      name: hash
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.4"
+  hex:
+    dependency: transitive
+    description:
+      name: hex
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.0"
   http:
     dependency: transitive
     description:
@@ -616,6 +639,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.3.0"
+  unorm_dart:
+    dependency: "direct main"
+    description:
+      name: unorm_dart
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.0"
   uuid:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 91ed2d6..d2f2c51 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -11,8 +11,6 @@ dependencies:
   get: ^4.6.5
   dio: ^4.0.6
   get_storage: ^2.0.3
-  crypto: ^3.0.2
-  encrypt: ^5.0.1
   qr_flutter: ^4.0.0
   azlistview: ^2.0.0
   lpinyin: ^2.0.3
@@ -34,6 +32,14 @@ dependencies:
   flutter_easyloading: ^3.0.5
   proste_indexed_stack: ^0.2.4
   image_cropper: ^3.0.0
+  bip32: ^2.0.0
+  bip39_multi_language:
+    git:
+      url: https://github.com/cjango/dart-bip39-multi-language.git
+      ref: master
+  fast_base58: ^0.2.1
+  hash: ^1.0.4
+  unorm_dart: ^0.2.0
 
 dev_dependencies:
   flutter_test:
@@ -41,3 +47,6 @@ dev_dependencies:
   flutter_lints: ^1.0.0
 flutter:
   uses-material-design: true
+  assets:
+    - assets/icons/
+    - assets/transits/