ZTSec-FedSDN: A Privacy-Preserving Federated Framework for SDN Attack Detection Using Zero-Trust Blockchain and 6G Terahertz Networks. - Ketav Shah; Aparna Kumari; Bhavya Solanki; Safaa Najah Saud Al-Humairi; Asma'a Mahfoud Hezam Al-Hakimi (CITS, 2025)