diff --git a/app/api/service/ApiSignService.php b/app/api/service/ApiSignService.php
deleted file mode 100644
index 4645f0cb..00000000
--- a/app/api/service/ApiSignService.php
+++ /dev/null
@@ -1,44 +0,0 @@
-<?php
-namespace app\api\service;
-
-class ApiSignService
-{
-    //创建sign
-    public static function makeSign($data,$appKey): string
-    {
-        ksort($data);
-        $string = self::toUrlParams($data);
-        $string = $string . "&key=" . $appKey;
-        $string = md5($string);
-        return strtolower($string);
-    }
-
-    //检验sign是否正确
-    public static function verifySign($data,$appKey): array
-    {
-        // 验证请求， 2分钟失效
-        if (time() - intval($data['timestamp'] / 1000) > 120) {
-            return ['code' => 0, 'msg' => '签名已失效'];
-        }
-        //比对签名
-        $clientSign = $data['sign'];
-        $serverSign = self::makeSign($data,$appKey);
-        if ($clientSign == $serverSign) {
-            return ['code' => 1, 'msg' => '验证通过'];
-        } else {
-            return ['code' => 0, 'msg' => '签名校验失败'];
-        }
-    }
-
-    //生成url字符串
-    private static function toUrlParams($values): string
-    {
-        $buff = "";
-        foreach ($values as $k => $v) {
-            if ($k != "sign" && !is_array($v)) {
-                $buff .= $k . "=" . $v . "&";
-            }
-        }
-        return trim($buff, "&");
-    }
-}
\ No newline at end of file