diff --git a/app/config/config.go b/app/config/config.go
index cf4befd9..46d93c36 100644
--- a/app/config/config.go
+++ b/app/config/config.go
@@ -6,11 +6,10 @@ const (
 	AppName = "go-gin-api"
 
 	// MD5 密钥
-	AppSignSecret = "4OhYXtDYNYxQsGetqASVOTP37jGt5gGY"
-
-	// MD5 签名超时时间 120s
-	AppSignExpiry = "120"
+	AppMD5SignSecret = "4OhYXtDYNYxQsGetqASVOTP37jGt5gGY"
 
+	// MD5 超时时间
+	AppMD5SignExpiry = "120"
 
 	// 超时时间
 	AppReadTimeout  = 120
@@ -34,7 +33,7 @@ const (
 	ErrorNotifyOpen = -1
 
 	// Jaeger 配置信息
-	JaegerHostPort  = "127.0.0.1:6831"
+	JaegerHostPort = "127.0.0.1:6831"
 
 	// Jaeger 配置开关 1=开通 -1=关闭
 	JaegerOpen = 1
diff --git a/app/route/middleware/sign/md5/md5.go b/app/route/middleware/sign/md5/md5.go
index acbf20c8..403d629e 100644
--- a/app/route/middleware/sign/md5/md5.go
+++ b/app/route/middleware/sign/md5/md5.go
@@ -55,7 +55,7 @@ func createMD5Sign(params url.Values) string {
 	}
 
 	// 自定义签名算法
-	sign := util.MD5(config.AppSignSecret + str + config.AppSignSecret)
+	sign := util.MD5(config.AppMD5SignSecret + str + config.AppMD5SignSecret)
 	return sign
 }
 
@@ -92,7 +92,7 @@ func verifyMD5Sign(c *gin.Context) (map[string]string, error) {
 		return res, nil
 	}
 
-	exp, _ := strconv.ParseInt(config.AppSignExpiry, 10, 64)
+	exp, _ := strconv.ParseInt(config.AppMD5SignExpiry, 10, 64)
 
 	// 验证过期时间
 	timestamp := time.Now().Unix()