Towards Sustainable IoT: A Digital Signature-Enhanced Federated Learning Approach. - Shahida Hafeezan Qureshi; Saif Ur Rehman Malik; Junaid Haseeb; Syed Atif Moqurrab; Tanvir Fatima Naik Bukht; Gautam Srivastava 001 (Secur. Priv., 2025)