diff --git a/index.js b/index.js
index 6b0c9c4..5b2aa49 100644
--- a/index.js
+++ b/index.js
@@ -99,8 +99,8 @@ module.exports = {
     let rand = CRYPTO.randomBytes(8).toString('hex')
     let stamp = ((Date.now() / 1000) >>> 0).toString(16)
 
-    rand = rand.replace(/^([0-9a-z]{8})([0-9a-z]{4})([0-9a-z]{4})$/, '$1-$2-$3')
-    return rand + '-' + stamp
+    rand = rand.replace(/^([0-9a-z]{4})([0-9a-z]{4})([0-9a-z]{8})$/, '$1-$2-$3')
+    return stam + '-' + prand
   },
 
   /**
diff --git a/package.json b/package.json
index 6f29274..1f98a8f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "crypto.js",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "原生crypto加密模块的二次封装,简化常用加密函数的使用",
   "keywords": [
     "md5",