A Multifactor Secure Authentication System for Wireless Payment. - Sugata Sanyal; Ayu Tiwari; Sudip Sanyal (Emergent Web Intelligence, 2010)

A Multi-Factor Security Protocol for Wireless Payment - Secure Web Authentication using Mobile Devices - Ayu Tiwari; Sudip Sanyal; Ajith Abraham; Svein Johan Knapskog; Sugata Sanyal (CoRR, 2011)

Access Control in Dynamic IoT Scenarios. - I-Ling Yen; Ayu Tiwari; Farokh B. Bastani (ISADS, 2023)