diff --git a/hardware/firmware/src/config.h b/hardware/firmware/src/config.h
index b9a2d4b..40efec8 100644
--- a/hardware/firmware/src/config.h
+++ b/hardware/firmware/src/config.h
@@ -9,5 +9,7 @@
 #define CFG_CP_FW_VERSION "1.0.0"
 #define CFG_CP_MODAL "Helios DA One"
 #define CFG_CP_VENDOR "RayineElec"
-// #define CFG_AUTHORIZATIONKEY "my_secret_key"
-#define CFG_AUTHORIZATIONKEY nullptr
+// OCPP Security Profile 1: Basic Auth password (username = chargePointIdentifier)
+// Set to nullptr to disable authentication
+// #define CFG_OCPP_PASSWORD "my_password"
+#define CFG_OCPP_PASSWORD nullptr
diff --git a/hardware/firmware/src/main.cpp b/hardware/firmware/src/main.cpp
index c3cfcd9..2e735d4 100644
--- a/hardware/firmware/src/main.cpp
+++ b/hardware/firmware/src/main.cpp
@@ -37,7 +37,7 @@ char cpSerial[13];
 // OCPP Configuration Variables
 char ocpp_backend[128];
 char cp_identifier[64];
-char auth_key[64];
+char ocpp_password[64];
 bool shouldSaveConfig = false;
 
 // callback notifying us of the need to save config
@@ -169,13 +169,13 @@ void setup()
   Preferences preferences;
   preferences.begin("ocpp-config", false);
   String b = preferences.getString("backend", CFG_OCPP_BACKEND);
-  String a = preferences.getString("auth_key", CFG_AUTHORIZATIONKEY ? CFG_AUTHORIZATIONKEY : "");
+  String p = preferences.getString("ocpp_password", CFG_OCPP_PASSWORD ? CFG_OCPP_PASSWORD : "");
 
   Serial.printf("\n[OCPP] Loaded Backend URL: %s\n", b.c_str());
-  Serial.printf("[OCPP] Loaded Auth Key length: %d\n", a.length());
+  Serial.printf("[OCPP] Loaded Password length: %d\n", p.length());
 
   strncpy(ocpp_backend, b.c_str(), sizeof(ocpp_backend));
-  strncpy(auth_key, a.c_str(), sizeof(auth_key));
+  strncpy(ocpp_password, p.c_str(), sizeof(ocpp_password));
 
   WiFiManager wm;
   wm.setSaveConfigCallback(saveConfigCallback);
@@ -184,10 +184,10 @@ void setup()
 
   // Use autocomplete=off to prevent browsers from autofilling old URLs after a reset
   WiFiManagerParameter custom_ocpp_backend("backend", "OCPP Backend URL", ocpp_backend, 128, "autocomplete=\"off\"");
-  WiFiManagerParameter custom_auth_key("auth_key", "Auth Key (leave blank if none)", auth_key, 64, "autocomplete=\"off\"");
+  WiFiManagerParameter custom_ocpp_password("ocpp_password", "OCPP 连接密码 (Basic Auth, 没有请留空)", ocpp_password, 64, "autocomplete=\"off\" type=\"password\"");
 
   wm.addParameter(&custom_ocpp_backend);
-  wm.addParameter(&custom_auth_key);
+  wm.addParameter(&custom_ocpp_password);
 
   const char *customHeadElement = R"rawliteral(
     <style>
@@ -335,10 +335,10 @@ void setup()
   if (shouldSaveConfig)
   {
     strncpy(ocpp_backend, custom_ocpp_backend.getValue(), sizeof(ocpp_backend));
-    strncpy(auth_key, custom_auth_key.getValue(), sizeof(auth_key));
+    strncpy(ocpp_password, custom_ocpp_password.getValue(), sizeof(ocpp_password));
 
     preferences.putString("backend", ocpp_backend);
-    preferences.putString("auth_key", auth_key);
+    preferences.putString("ocpp_password", ocpp_password);
     Serial.println("Saved new OCPP config to Preferences");
   }
   preferences.end();
@@ -354,8 +354,8 @@ void setup()
     s_led_state = LED_WIFI_CONNECTED;
 
     mg_mgr_init(&mgr);
-    const char *final_auth_key = (strlen(auth_key) > 0) ? auth_key : nullptr;
-    MicroOcpp::MOcppMongooseClient *client = new MicroOcpp::MOcppMongooseClient(&mgr, ocpp_backend, cp_identifier, final_auth_key, "", MicroOcpp::makeDefaultFilesystemAdapter(MicroOcpp::FilesystemOpt::Use_Mount_FormatOnFail), MicroOcpp::ProtocolVersion(1, 6));
+    const char *final_ocpp_password = (strlen(ocpp_password) > 0) ? ocpp_password : nullptr;
+    MicroOcpp::MOcppMongooseClient *client = new MicroOcpp::MOcppMongooseClient(&mgr, ocpp_backend, cp_identifier, final_ocpp_password, "", MicroOcpp::makeDefaultFilesystemAdapter(MicroOcpp::FilesystemOpt::Use_Mount_FormatOnFail), MicroOcpp::ProtocolVersion(1, 6));
     mocpp_initialize(*client, ChargerCredentials(CFG_CP_MODAL, CFG_CP_VENDOR, CFG_CP_FW_VERSION, cpSerial, nullptr, nullptr, CFG_CB_SERIAL, nullptr, nullptr), MicroOcpp::makeDefaultFilesystemAdapter(MicroOcpp::FilesystemOpt::Use_Mount_FormatOnFail));
 
     // For development/recovery: Set up BOOT button (GPIO 0)
@@ -417,7 +417,7 @@ void loop()
         Preferences preferences;
         preferences.begin("ocpp-config", false);
         preferences.remove("backend");
-        preferences.remove("auth_key");
+        preferences.remove("ocpp_password");
         preferences.clear();
         preferences.end();
         Serial.println("NVS ocpp-config cleared.");