updated IS codes

IS/Lab/Lab5/socket/serverhash.py

@@ -0,0 +1,22 @@
+import socket
+import hashlib
+
+
+def main() -> None:
+    host = "127.0.0.1"
+    port = 5001
+
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as server:
+        server.bind((host, port))
+        server.listen(1)
+        conn, addr = server.accept()
+        with conn:
+            data = conn.recv(4096)
+            digest = hashlib.sha256(data).hexdigest()
+            conn.sendall(digest.encode())
+
+
+if __name__ == "__main__":
+    main()
+
+