diff --git a/iniDataForMacOs b/iniDataForMacOs
index df2ff7b..99ce46c 100755
Binary files a/iniDataForMacOs and b/iniDataForMacOs differ
diff --git a/main.go b/main.go
index a26b8de..d56831a 100644
--- a/main.go
+++ b/main.go
@@ -190,17 +190,17 @@ func handleWebSocket(w http.ResponseWriter, r *http.Request) {
 
 }
 
-func verify_signature(signature string, nonce int64, timestamp int64, data interface{}) bool {
+func verify_signature(signature string, nonce string, timestamp int64, data interface{}) bool {
 	key := "qZ6v1&H#Wjx+yRm2D@*sJF$tnfL83Ia"
 
 	fmt.Printf("Received signature: %s\n", signature)
 	fmt.Printf("Received timestamp: %d\n", timestamp)
-	fmt.Printf("Received nonce: %d\n", nonce)
+	fmt.Printf("Received nonce: %s\n", nonce)
 	fmt.Printf("Received data: %v\n", data)
 
 	received_signature := signature
 	received_timestamp, _ := strconv.ParseInt(fmt.Sprintf("%v", timestamp), 10, 64)
-	received_nonce, _ := strconv.Atoi(fmt.Sprintf("%v", nonce))
+	received_nonce := nonce //strconv.Atoi(fmt.Sprintf("%v", nonce))
 
 	if time.Now().Unix()-received_timestamp > 7200 {
 		fmt.Println("Timestamp expired")
@@ -209,7 +209,7 @@ func verify_signature(signature string, nonce int64, timestamp int64, data inter
 
 	received_data_bytes, _ := json.Marshal(data)
 	received_data := string(received_data_bytes)
-	expected_data := fmt.Sprintf("%d|%d|%s", received_timestamp, received_nonce, received_data)
+	expected_data := fmt.Sprintf("%d|%s|%s", received_timestamp, received_nonce, received_data)
 	fmt.Printf("Expected data: %s\n", expected_data)
 
 	mac := hmac.New(sha256.New, []byte(key))
@@ -1203,5 +1203,5 @@ type TaskData struct {
 type Signature struct {
 	Signature string `json:"signature"`
 	Timestamp int64  `json:"timestamp"`
-	Nonce     int64  `json:"nonce"`
+	Nonce     string `json:"nonce"`
 }
diff --git a/sign_message.php b/sign_message.php
index 4af2311..87561d5 100644
--- a/sign_message.php
+++ b/sign_message.php
@@ -2,9 +2,9 @@
 
 function sign_message($data) {
     $timestamp = time();
-    $nonce = mt_rand(100000, 999999); // 生成一个六位随机数
+    $nonce = generate_random_string(64); // 生成一个六位随机数，包含大小写字母和数字
     $message = "$timestamp|$nonce|" . json_encode($data);
-    $key = 'qZ6v1&H#Wjx+yRm2D@*sJF$tnfL83Ia'; // 签名密钥，请自行设置
+    $key = 'qZ6v1&H#Wjx+yRm2D@*sJF$tnfL83Ia';
     $signature = hash_hmac('sha256', $message, $key);
     $signed_message = array(
         'TaskData' => $data,
@@ -17,6 +17,16 @@ function sign_message($data) {
     return json_encode($signed_message);
 }
 
+function generate_random_string($length) {
+    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%&*()_-+=';
+    $random_string = '';
+    for ($i = 0; $i < $length; $i++) {
+        $index = mt_rand(0, strlen($characters) - 1);
+        $random_string .= $characters[$index];
+    }
+    return $random_string;
+}
+
 $data = array(
     "command" => "lastCall",
     "excluded_filename" => "lastCall.txt",