diff --git a/extend/org/Crypt.php b/extend/org/Crypt.php
index 0832cd6..a9ab5a4 100644
--- a/extend/org/Crypt.php
+++ b/extend/org/Crypt.php
@@ -125,9 +125,12 @@ public static function decrypt($value, $key, $target = 'url')
         $expire = substr($value, self::HMAC_SIZE, self::EXPIRE_SIZE);
         $iv     = substr($value, self::HMAC_SIZE + self::EXPIRE_SIZE, self::IV_SIZE);
         $value  = substr($value, self::HMAC_SIZE + self::EXPIRE_SIZE + self::IV_SIZE);
+        $expire = hexdec(bin2hex($expire));
         // 超出有效期
-        if (time() > hexdec(bin2hex($expire))) {
-            return false;
+        if($expire!==0){
+            if (time() > hexdec(bin2hex($expire))) {
+                return false;
+            }
         }
         // 验证密文是否被篡改
         if (static::compareString(static::hmac($iv, $value, $key), bin2hex($hmac)) === false) {
diff --git a/extend/org/transform/driver/Base64.php b/extend/org/transform/driver/Base64.php
index 85c67d7..b9a504d 100644
--- a/extend/org/transform/driver/Base64.php
+++ b/extend/org/transform/driver/Base64.php
@@ -32,7 +32,7 @@ class Base64
      * @param string $data   欲编码的数据
      * @param string $target 编码目标
      */
-    public function encode($data, $target = '')
+    public static function encode($data, $target = '')
     {
         // 当函数没有特别指定编码目标时, 使用类自身编码目标
         if (empty($target)) {
@@ -62,7 +62,7 @@ public function encode($data, $target = '')
      * @param string $data   欲解码的数据
      * @param string $target 解码目标
      */
-    public function decode($data, $target = '')
+    public static function decode($data, $target = '')
     {
         // 当函数没有特别指定解码目标时, 使用类自身解码目标
         if (empty($target)) {