diff --git a/src/scripts/controllers/command.js b/src/scripts/controllers/command.js
index ec4a996..05e4a5e 100644
--- a/src/scripts/controllers/command.js
+++ b/src/scripts/controllers/command.js
@@ -1,12 +1,12 @@
 (function () {
     'use strict';
 
-    angular.module('ariaNg').controller('CommandController', ['$rootScope', '$window', '$location', '$routeParams', 'base64', 'ariaNgDefaultOptions', 'ariaNgCommonService', 'ariaNgSettingService', 'aria2SettingService', 'aria2TaskService', 'ariaNgLogService', function ($rootScope, $window, $location, $routeParams, base64, ariaNgDefaultOptions, ariaNgCommonService, ariaNgSettingService, aria2SettingService, aria2TaskService, ariaNgLogService) {
+    angular.module('ariaNg').controller('CommandController', ['$rootScope', '$window', '$location', '$routeParams', 'ariaNgDefaultOptions', 'ariaNgCommonService', 'ariaNgSettingService', 'aria2SettingService', 'aria2TaskService', 'ariaNgLogService', function ($rootScope, $window, $location, $routeParams, ariaNgDefaultOptions, ariaNgCommonService, ariaNgSettingService, aria2SettingService, aria2TaskService, ariaNgLogService) {
         var path = $location.path();
 
         var doNewTaskCommand = function (url, params) {
             try {
-                url = base64.urldecode(url);
+                url = ariaNgCommonService.base64UrlDecode(url);
             } catch (ex) {
                 ariaNgCommonService.showError('URL is not base64 encoded!');
                 return false;
@@ -70,7 +70,7 @@
 
             if (secret) {
                 try {
-                    secret = base64.urldecode(secret);
+                    secret = ariaNgCommonService.base64UrlDecode(secret);
                 } catch (ex) {
                     ariaNgCommonService.showError('RPC secret is not base64 encoded!');
                     return false;
diff --git a/src/scripts/controllers/new.js b/src/scripts/controllers/new.js
index f118ec0..6c61063 100644
--- a/src/scripts/controllers/new.js
+++ b/src/scripts/controllers/new.js
@@ -1,7 +1,7 @@
 (function () {
     'use strict';
 
-    angular.module('ariaNg').controller('NewTaskController', ['$rootScope', '$scope', '$location', '$timeout', 'base64', 'ariaNgCommonService', 'ariaNgLogService', 'ariaNgSettingService', 'ariaNgFileService', 'aria2SettingService', 'aria2TaskService', function ($rootScope, $scope, $location, $timeout, base64, ariaNgCommonService, ariaNgLogService, ariaNgSettingService, ariaNgFileService, aria2SettingService, aria2TaskService) {
+    angular.module('ariaNg').controller('NewTaskController', ['$rootScope', '$scope', '$location', '$timeout', 'ariaNgCommonService', 'ariaNgLogService', 'ariaNgSettingService', 'ariaNgFileService', 'aria2SettingService', 'aria2TaskService', function ($rootScope, $scope, $location, $timeout, ariaNgCommonService, ariaNgLogService, ariaNgSettingService, ariaNgFileService, aria2SettingService, aria2TaskService) {
         var tabOrders = ['links', 'options'];
         var parameters = $location.search();
 
@@ -79,7 +79,7 @@
 
         if (parameters.url) {
             try {
-                $scope.context.urls = base64.urldecode(parameters.url);
+                $scope.context.urls = ariaNgCommonService.base64UrlDecode(parameters.url);
             } catch (ex) {
                 ariaNgLogService.error('[NewTaskController] base64 decode error, url=' + parameters.url, ex);
             }
diff --git a/src/scripts/services/aria2HttpRpcService.js b/src/scripts/services/aria2HttpRpcService.js
index d14be0b..6a96c8f 100644
--- a/src/scripts/services/aria2HttpRpcService.js
+++ b/src/scripts/services/aria2HttpRpcService.js
@@ -1,7 +1,7 @@
 (function () {
     'use strict';
 
-    angular.module('ariaNg').factory('aria2HttpRpcService', ['$http', 'base64', 'ariaNgSettingService', 'ariaNgLogService', function ($http, base64, ariaNgSettingService, ariaNgLogService) {
+    angular.module('ariaNg').factory('aria2HttpRpcService', ['$http', 'ariaNgCommonService', 'ariaNgSettingService', 'ariaNgLogService', function ($http, ariaNgCommonService, ariaNgSettingService, ariaNgLogService) {
         var rpcUrl = ariaNgSettingService.getCurrentRpcUrl();
         var method = ariaNgSettingService.getCurrentRpcHttpMethod();
 
@@ -29,7 +29,7 @@
 
                 if (angular.isObject(value) || angular.isArray(value)) {
                     value = angular.toJson(value);
-                    value = base64.encode(value);
+                    value = ariaNgCommonService.base64Encode(value);
                     value = encodeURIComponent(value);
                 }
 
diff --git a/src/scripts/services/ariaNgCommonService.js b/src/scripts/services/ariaNgCommonService.js
index 7164823..138d42a 100644
--- a/src/scripts/services/ariaNgCommonService.js
+++ b/src/scripts/services/ariaNgCommonService.js
@@ -3,9 +3,18 @@
 
     angular.module('ariaNg').factory('ariaNgCommonService', ['$location', '$timeout', 'base64', 'moment', 'SweetAlert', '$translate', 'ariaNgConstants', function ($location, $timeout, base64, moment, SweetAlert, $translate, ariaNgConstants) {
         return {
+            base64Encode: function (value) {
+                return base64.encode(value);
+            },
+            base64Decode: function (value) {
+                return base64.decode(value);
+            },
+            base64UrlDecode: function (value) {
+                return base64.urldecode(value);
+            },
             generateUniqueId: function () {
                 var sourceId = ariaNgConstants.appPrefix + '_' + Math.round(new Date().getTime() / 1000) + '_' + Math.random();
-                var hashedId = base64.encode(sourceId);
+                var hashedId = this.base64Encode(sourceId);
 
                 return hashedId;
             },
diff --git a/src/scripts/services/ariaNgSettingService.js b/src/scripts/services/ariaNgSettingService.js
index c7a965c..fb56a26 100644
--- a/src/scripts/services/ariaNgSettingService.js
+++ b/src/scripts/services/ariaNgSettingService.js
@@ -1,7 +1,7 @@
 (function () {
     'use strict';
 
-    angular.module('ariaNg').factory('ariaNgSettingService', ['$window', '$location', '$filter', '$translate', 'base64', 'amMoment', 'localStorageService', 'ariaNgConstants', 'ariaNgDefaultOptions', 'ariaNgLanguages', 'ariaNgCommonService', 'ariaNgLogService', function ($window, $location, $filter, $translate, base64, amMoment, localStorageService, ariaNgConstants, ariaNgDefaultOptions, ariaNgLanguages, ariaNgCommonService, ariaNgLogService) {
+    angular.module('ariaNg').factory('ariaNgSettingService', ['$window', '$location', '$filter', '$translate', 'amMoment', 'localStorageService', 'ariaNgConstants', 'ariaNgDefaultOptions', 'ariaNgLanguages', 'ariaNgCommonService', 'ariaNgLogService', function ($window, $location, $filter, $translate, amMoment, localStorageService, ariaNgConstants, ariaNgDefaultOptions, ariaNgLanguages, ariaNgCommonService, ariaNgLogService) {
         var browserFeatures = (function () {
             var supportLocalStroage = localStorageService.isSupported;
             var supportCookies = $window.navigator.cookieEnabled;
@@ -207,7 +207,7 @@
                 var options = angular.extend({}, ariaNgDefaultOptions, getOptions());
 
                 if (options.secret) {
-                    options.secret = base64.decode(options.secret);
+                    options.secret = ariaNgCommonService.base64Decode(options.secret);
                 }
 
                 if (angular.isArray(options.extendRpcServers)) {
@@ -215,7 +215,7 @@
                         var rpcSetting = options.extendRpcServers[i];
 
                         if (rpcSetting.secret) {
-                            rpcSetting.secret = base64.decode(rpcSetting.secret);
+                            rpcSetting.secret = ariaNgCommonService.base64Decode(rpcSetting.secret);
                         }
                     }
                 }
@@ -333,7 +333,7 @@
             },
             getCurrentRpcSecret: function () {
                 var value = getOption('secret');
-                return (value ? base64.decode(value) : value);
+                return (value ? ariaNgCommonService.base64Decode(value) : value);
             },
             addNewRpcSetting: function () {
                 var options = getOptions();
@@ -366,7 +366,7 @@
                     value = Math.max(parseInt(value), 0);
                 } else if (field === 'secret') {
                     if (value) {
-                        value = base64.encode(value);
+                        value = ariaNgCommonService.base64Encode(value);
                     }
                 }
 
@@ -439,7 +439,7 @@
                     newDefaultSetting = cloneRpcSetting(setting);
 
                     if (newDefaultSetting.secret) {
-                        newDefaultSetting.secret = base64.encode(newDefaultSetting.secret);
+                        newDefaultSetting.secret = ariaNgCommonService.base64Encode(newDefaultSetting.secret);
                     }
                 }