diff --git a/dislocker_client.py b/dislocker_client.py
index 9fb2798..ed9cde3 100644
--- a/dislocker_client.py
+++ b/dislocker_client.py
@@ -1,10 +1,11 @@
-import psycopg2
 import os
 import json
 import customtkinter
 from winotify import Notification, audio
 import keyboard
 import subprocess
+import requests
+import hashlib
 
 class App(customtkinter.CTk):
     def __init__(self):
@@ -89,15 +90,18 @@ class Lock(customtkinter.CTkToplevel):
         self.signin_button = customtkinter.CTkButton(self.button_frame, text='サインイン', command=self.auth)
         self.signin_button.grid(row=0, column=0, padx=10, pady=10)
 
+    def hash_genarate(self, source):
+        hashed = hashlib.md5(source.encode())
+        return hashed.hexdigest()
+
     def auth(self):
-        self.db = psycopg2.connect(f"host={db_config["host"]} dbname={db_config["db"]} port={db_config["port"]} user={db_config["username"]} password={db_config["password"]}")
-        cursor = self.db.cursor()
-        cursor.execute("SELECT * FROM pc_list WHERE pc_number = %s", (10,))
-        pc_info = cursor.fetchall()
-        auth_password = str(self.password_entry.get())
-        if pc_info[0][2] == auth_password:
-            cursor.execute("UPDATE pc_list SET password_hash = NULL WHERE pc_number = %s", (10,))
-            self.db.commit()
+        auth_url = client_config["auth_host_url"] + "/verify"
+        auth_json = {
+            "pc_number": client_config["pc_number"],
+            "password": self.hash_genarate(self.password_entry.get())
+        }
+        responce = requests.post(auth_url, json=auth_json)
+        if responce.status_code == 200:
             self.destroy()
             app.exit()
         else:
@@ -111,22 +115,19 @@ class Lock(customtkinter.CTkToplevel):
 
 
 config_dir_path = "./config/"
-db_config_path = config_dir_path + "db.json"
-if not os.path.isfile(db_config_path):
+client_config_path = config_dir_path + "client.json"
+if not os.path.isfile(client_config_path):
     if not os.path.isdir(config_dir_path):
         os.mkdir(config_dir_path)
 
-    db_config = {
-        "host": "localhost",
-        "db": "dislocker",
-        "username": "user",
-        "password": "example_pass",
-        "port": "5432"
+    client_config = {
+        "auth_host_url": "localhost",
+        "pc_number": ""
     }
-    with open(db_config_path, "w") as w:
-        json.dump(db_config, w, indent=4)
-elif os.path.isfile(db_config_path):
-    with open(db_config_path, "r") as r:
+    with open(client_config_path, "w") as w:
+        json.dump(client_config, w, indent=4)
+elif os.path.isfile(client_config_path):
+    with open(client_config_path, "r") as r:
         db_config = json.load(r)
 
 if __name__ == '__main__':