Update app.py

app.py

@@ -79,7 +79,7 @@ def keygen(eval_key, user_id):
     print("Initializing FHEModelClient...")
     # Let's create a user_id
     user_id = numpy.random.randint(0, 2**32)
-    fhe_api = FHEModelClient(f"fhe_model", f".fhe_keys/{user_id}")
+    fhe_api = FHEModelClient(f"fhe_model", f".fhe_keys/{eval_key}")
     fhe_api.load()
 
     # Generate a fresh key