diff --git a/tcp_server.py b/tcp_server.py
new file mode 100644
index 0000000..e16a061
--- /dev/null
+++ b/tcp_server.py
@@ -0,0 +1,60 @@
+import os
+import socket
+import zipfile
+
+def receive_zip(HOST,PORT):
+    # 获取当前文件的绝对路径和目录路径
+    current_file_path = os.path.abspath(__file__)
+    current_directory = os.path.dirname(current_file_path)
+
+    # 创建一个socket对象
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as server_socket:
+        # 绑定IP和端口
+        server_socket.bind((HOST, PORT))
+        # 开始监听传入的连接
+        server_socket.listen()
+
+        print(f"等待客户端连接...")
+        conn, addr = server_socket.accept()  # 接受客户端的连接
+        print(f"已连接：{addr}")
+
+        with conn:
+            # 从客户端接收数据
+            encrypted_data_path = os.path.join(current_directory, 'encrypted_data.zip')
+            with open(encrypted_data_path, 'wb') as file:
+                while True:
+                    file_data = conn.recv(1024)
+                    if not file_data:
+                        break
+                    file.write(file_data)
+
+            print("文件接收完成")
+
+    # 解压缩 ZIP 文件
+    output_folder = os.path.join(current_directory)
+    os.makedirs(output_folder, exist_ok=True)
+
+    with zipfile.ZipFile(encrypted_data_path, 'r') as zip_file:
+        zip_file.extractall(output_folder)
+
+    print("解压缩完成到目标文件夹：", output_folder)
+
+def send_Bpubkey(HOST,PORT):
+    # 获取当前文件的绝对路径和目录路径
+    current_file_path = os.path.abspath(__file__)
+    current_directory = os.path.dirname(current_file_path)
+
+    # 文件路径
+    Bpubkey_path = os.path.join(current_directory, 'B_public.txt')
+
+    # 客户端连接服务器
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as client_socket:
+        client_socket.connect((HOST, PORT))
+
+        # 读取要传输的文件
+        with open(Bpubkey_path, 'rb') as file:
+            file_data = file.read()
+
+        # 发送文件数据
+        client_socket.sendall(file_data)
+        print("文件发送完成")
\ No newline at end of file