diff --git a/util/saltMD5.js b/util/saltMD5.js
new file mode 100644
index 0000000..c3a233b
--- /dev/null
+++ b/util/saltMD5.js
@@ -0,0 +1,24 @@
+const key="3mang";
+const crypto = require('crypto');
+module.exports={
+		md5AddSalt:function(password){
+			var salt=Math.floor(Math.random()*100);
+			var decipher = crypto.createHash('md5',key);
+			var md5Pass=decipher.update(password+""+salt).digest("hex");
+			return {
+				salt:salt,
+				md5Pass:md5Pass
+			};
+		},
+		md5:function(password){
+			var md5Pass = crypto.createHash('md5').update(password).digest("hex");
+			return md5Pass
+		},
+		md5Salt:function(password,salt){
+      if(salt == null){
+        salt = '';
+      }
+			var decipher = crypto.createHash('md5',key);
+			return decipher.update(password+salt).digest("hex");
+		}
+};
\ No newline at end of file