diff --git a/lib/main.dart b/lib/main.dart
index f7c0ce1..49d9ea8 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,13 +1,17 @@
 import 'dart:convert';
+import 'dart:io';
 
 import 'package:amap_map_fluttify/amap_map_fluttify.dart';
 import 'package:camera/camera.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_bugly/flutter_bugly.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:flutter_redux/flutter_redux.dart';
 
 import 'package:oktoast/oktoast.dart';
+import 'package:package_signature/package_signature.dart';
+import 'package:raw_toast/raw_toast.dart';
 import 'package:recook/constants/api.dart';
 import 'package:recook/manager/http_manager.dart';
 import 'package:recook/manager/user_manager.dart';
@@ -113,6 +117,7 @@ class MyAppState extends State<MyApp> {
     super.initState();
     initPlatformState();
     BuglyHelper.initialSDK();
+    checkSignature();
     // BuglyHelper.setUserInfo();
     // ShareSDKRegister register = ShareSDKRegister();
     // register.setupQQ("1109724223", "UGWklum7WWI03ll9");
@@ -127,6 +132,25 @@ class MyAppState extends State<MyApp> {
         licenseKey: key,
       );
     });
+
+    //签名验证
+    //----------
+    //使用SHA256计算签名
+    //仅验证Android 端的签名
+  }
+
+  Future checkSignature() async {
+    if (Platform.isAndroid) {
+      Signature signature = await PackageSignature.signature;
+      bool signPass =
+          'kzOk4i5opDSCXXjbA9SSrws9a5fytdFFUsumV5DHz2o=' == signature.sha256;
+      if (!signPass) {
+        RawToast.toast('请从官方渠道下载本应用,即将退出');
+        Future.delayed(Duration(milliseconds: 300), () {
+          SystemNavigator.pop();
+        });
+      }
+    }
   }
 
   Future<void> initPlatformState() async {
diff --git a/pubspec.lock b/pubspec.lock
index 2b68501..379d8e9 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -476,9 +476,9 @@ packages:
   flutter_union_pay:
     dependency: "direct main"
     description:
-      path: "/Users/akufe/AndroidStudioProjects/flutter_union_pay"
-      relative: false
-    source: path
+      name: flutter_union_pay
+      url: "https://pub.flutter-io.cn"
+    source: hosted
     version: "0.0.4"
   flutter_web_plugins:
     dependency: transitive
@@ -748,6 +748,15 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.10"
+  package_signature:
+    dependency: "direct main"
+    description:
+      path: "."
+      ref: HEAD
+      resolved-ref: "6f0afe035501bea664f5668a935aae0b31949069"
+      url: "git@192.168.2.201:aku_fe/package_signature.git"
+    source: git
+    version: "0.0.1"
   path:
     dependency: "direct main"
     description:
@@ -930,6 +939,13 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.3.8"
+  raw_toast:
+    dependency: "direct main"
+    description:
+      name: raw_toast
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.0.1"
   redux:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 307b53c..2b460a4 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -205,8 +205,14 @@ dependencies:
 
   flutter_markdown:
 
-  flutter_union_pay :
-    path: /Users/akufe/AndroidStudioProjects/flutter_union_pay
+  flutter_union_pay:
+
+  package_signature:
+    git:
+      url: git@192.168.2.201:aku_fe/package_signature.git
+  
+  raw_toast: ^0.0.1
+
 
 dev_dependencies:
   flutter_test: