diff --git a/app/src/main/java/com/hiroshi/cimoc/manager/PreferenceManager.java b/app/src/main/java/com/hiroshi/cimoc/manager/PreferenceManager.java
index 3e2aaff4..5ff56b04 100644
--- a/app/src/main/java/com/hiroshi/cimoc/manager/PreferenceManager.java
+++ b/app/src/main/java/com/hiroshi/cimoc/manager/PreferenceManager.java
@@ -138,6 +138,10 @@ public class PreferenceManager {
     public static final String PREFERENCES_USER_EMAIL = "user_email";
     public static final String PREFERENCES_USER_ID = "user_id";
     private static final String PREFERENCES_NAME = "cimoc_preferences";
+
+    public static final String PREFERENCES_MH50_KEY_MSG = "preferences_mh50_key_msg";
+    public static final String PREFERENCES_MH50_IV_MSG = "preferences_mh50_iv_msg";
+
     private SharedPreferences mSharedPreferences;
 
     public PreferenceManager(Context context) {
diff --git a/app/src/main/java/com/hiroshi/cimoc/source/MH50.java b/app/src/main/java/com/hiroshi/cimoc/source/MH50.java
index cbacf172..a9837a12 100644
--- a/app/src/main/java/com/hiroshi/cimoc/source/MH50.java
+++ b/app/src/main/java/com/hiroshi/cimoc/source/MH50.java
@@ -1,9 +1,12 @@
 package com.hiroshi.cimoc.source;
 
+import android.util.Log;
 import android.util.Pair;
 
 import com.alibaba.fastjson.JSONArray;
 import com.google.common.collect.Lists;
+import com.hiroshi.cimoc.App;
+import com.hiroshi.cimoc.manager.PreferenceManager;
 import com.hiroshi.cimoc.model.Chapter;
 import com.hiroshi.cimoc.model.Comic;
 import com.hiroshi.cimoc.model.ImageUrl;
@@ -128,8 +131,8 @@ public Request getImagesRequest(String cid, String path) {
 
     @Nullable
     private String decrypt(String code) {
-        String key = "KA58ZAQ54321bbG1";
-        String iv = "A1B2C3DEF1G321bb";
+        String key = App.getPreferenceManager().getString(PreferenceManager.PREFERENCES_MH50_KEY_MSG, "KA58ZAQ54321bbG1");
+        String iv = App.getPreferenceManager().getString(PreferenceManager.PREFERENCES_MH50_IV_MSG, "A1B2C3DEF1G321bb");
         try {
             return DecryptionUtils.aesDecrypt(code, key, iv);
         } catch (Exception e) {
diff --git a/app/src/main/java/com/hiroshi/cimoc/ui/activity/MainActivity.java b/app/src/main/java/com/hiroshi/cimoc/ui/activity/MainActivity.java
index f78da115..45ef940f 100644
--- a/app/src/main/java/com/hiroshi/cimoc/ui/activity/MainActivity.java
+++ b/app/src/main/java/com/hiroshi/cimoc/ui/activity/MainActivity.java
@@ -31,6 +31,7 @@
 import android.view.View;
 import android.widget.FrameLayout;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.facebook.drawee.interfaces.DraweeController;
 import com.facebook.drawee.view.SimpleDraweeView;
@@ -199,6 +200,7 @@ protected void initData() {
 
         showAuthorNotice();
         showPermission();
+        getMh50KeyIv();
     }
 
     @Override
@@ -571,6 +573,39 @@ public void onComplete(@NonNull Task<Boolean> task) {
                 });
     }
 
+    private void getMh50KeyIv() {
+        FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();
+        FirebaseRemoteConfigSettings configSettings = new FirebaseRemoteConfigSettings.Builder()
+                .setMinimumFetchIntervalInSeconds(60*60)
+                .build();
+        mFirebaseRemoteConfig.setConfigSettingsAsync(configSettings);
+        mFirebaseRemoteConfig.setDefaultsAsync(R.xml.remote_config);
+        mFirebaseRemoteConfig.fetchAndActivate()
+                .addOnCompleteListener(this, new OnCompleteListener<Boolean>() {
+                    @Override
+                    public void onComplete(@NonNull Task<Boolean> task) {
+                        if (task.isSuccessful()) {
+                            boolean updated = task.getResult();
+                            Log.d("FireBase_FirstOpenMsg", "Config params updated: " + updated);
+                        } else {
+                            Log.d("FireBase_FirstOpenMsg", "Config params updated Failed. ");
+                        }
+
+                        String mh50_key = mFirebaseRemoteConfig.getString("mh50_key_msg");
+                        String mh50_iv = mFirebaseRemoteConfig.getString("mh50_iv_msg");
+
+                        if (!mh50_key.equals(mPreference.getString(PreferenceManager.PREFERENCES_MH50_KEY_MSG, "KA58ZAQ54321bbG1"))){
+                            mPreference.putString(PreferenceManager.PREFERENCES_MH50_KEY_MSG, mh50_key);
+                            Toast.makeText(MainActivity.this,"漫画堆key已更新",Toast.LENGTH_LONG).show();
+                        }
+                        if (!mh50_iv.equals(mPreference.getString(PreferenceManager.PREFERENCES_MH50_IV_MSG, "A1B2C3DEF1G321bb"))){
+                            mPreference.putString(PreferenceManager.PREFERENCES_MH50_IV_MSG, mh50_iv);
+                            Toast.makeText(MainActivity.this,"漫画堆iv已更新",Toast.LENGTH_LONG).show();
+                        }
+                    }
+                });
+    }
+
     private void showPermission() {
         if (!PermissionUtils.hasAllPermissions(this)) {
             MessageDialogFragment fragment = MessageDialogFragment.newInstance(R.string.main_permission,
diff --git a/app/src/main/res/xml/remote_config.xml b/app/src/main/res/xml/remote_config.xml
index b1224742..846cdc0d 100644
--- a/app/src/main/res/xml/remote_config.xml
+++ b/app/src/main/res/xml/remote_config.xml
@@ -5,5 +5,13 @@
         <key>first_open_msg</key>
         <value>Welcome to Cimoc!</value>
     </entry>
+    <entry>
+        <key>mh50_key_msg</key>
+        <value>KA58ZAQ54321bbG1</value>
+    </entry>
+    <entry>
+        <key>mh50_iv_msg</key>
+        <value>A1B2C3DEF1G321bb</value>
+    </entry>
 </defaultsMap>
 <!-- END xml_defaults -->
\ No newline at end of file