diff --git a/docs/api.md b/docs/api.md
index d1c43781..44e54a07 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -437,6 +437,14 @@ core.utils.unshift(a, b)
 向某个数组前插入另一个数组或元素
 
 
+core.utils.encodeBase64(str)
+Base64加密字符串
+
+
+core.utils.decodeBase64(str)
+Base64解密字符串
+
+
 core.utils.formatBigNumber(x)
 大数据的格式化
 
diff --git a/libs/control.js b/libs/control.js
index db1beff0..ed79261d 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -315,7 +315,7 @@ control.prototype.startGame = function (hard, callback) {
         formData.append('name', core.firstData.name);
         formData.append('version', core.firstData.version);
         formData.append('platform', core.platform.isPC?"PC":core.platform.isAndroid?"Android":core.platform.isIOS?"iOS":"");
-        formData.append('hard', LZString.compressToBase64(hard));
+        formData.append('hard', core.encodeBase64(hard));
         formData.append('hardCode', core.getFlag('hard', 0));
         formData.append('base64', 1);
 
diff --git a/libs/core.js b/libs/core.js
index 00c37d91..c080e875 100644
--- a/libs/core.js
+++ b/libs/core.js
@@ -1113,6 +1113,16 @@ core.prototype.subarray = function (a, b) {
     return core.utils.subarray(a, b);
 }
 
+////// Base64加密 //////
+core.prototype.encodeBase64 = function (str) {
+    return core.utils.encodeBase64(str);
+}
+
+////// Base64解密 //////
+core.prototype.decodeBase64 = function (str) {
+    return core.utils.decodeBase64(str);
+}
+
 ////// 生成随机数（seed方法） //////
 core.prototype.rand = function (num) {
     return core.utils.rand(num);
diff --git a/libs/events.js b/libs/events.js
index 1ec5cc69..c60a3914 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -175,9 +175,9 @@ events.prototype.gameOver = function (ending, fromReplay) {
             formData.append('name', core.firstData.name);
             formData.append('version', core.firstData.version);
             formData.append('platform', core.platform.isPC?"PC":core.platform.isAndroid?"Android":core.platform.isIOS?"iOS":"");
-            formData.append('hard', LZString.compressToBase64(core.status.hard));
-            formData.append('username', LZString.compressToBase64(username||""));
-            formData.append('ending', LZString.compressToBase64(ending));
+            formData.append('hard', core.encodeBase64(core.status.hard));
+            formData.append('username', core.encodeBase64(username||""));
+            formData.append('ending', core.encodeBase64(ending));
             formData.append('lv', core.status.hero.lv);
             formData.append('hp', Math.min(hp, Math.pow(2, 63)));
             formData.append('atk', core.status.hero.atk);
@@ -1491,7 +1491,7 @@ events.prototype.uploadCurrent = function () {
     formData.append('name', core.firstData.name);
     formData.append('version', core.firstData.version);
     formData.append('platform', core.platform.isPC?"PC":core.platform.isAndroid?"Android":core.platform.isIOS?"iOS":"");
-    formData.append('hard', LZString.compressToBase64(core.status.hard));
+    formData.append('hard', core.encodeBase64(core.status.hard));
     formData.append('lv', core.status.hero.lv);
     formData.append('hp', Math.min(hp, Math.pow(2, 63)));
     formData.append('atk', core.status.hero.atk);
diff --git a/libs/utils.js b/libs/utils.js
index b9ef8dd1..58c625a1 100644
--- a/libs/utils.js
+++ b/libs/utils.js
@@ -340,6 +340,20 @@ utils.prototype.subarray = function (a, b) {
     return na;
 }
 
+////// Base64加密 //////
+utils.prototype.encodeBase64 = function (str) {
+    return btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, function (match, p1) {
+        return String.fromCharCode(parseInt(p1, 16))
+    }))
+}
+
+////// Base64解密 //////
+utils.prototype.decodeBase64 = function (str) {
+    return decodeURIComponent(atob(str).split('').map(function(c) {
+        return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
+    }).join(''));
+}
+
 utils.prototype.__init_seed = function () {
     var rand = new Date().getTime()%34834795 + 3534;
     rand = this.__next_rand(rand);