Enhancing Asynchronous MPC: Achieving Optimal Resilience Against All Adversaries 🔐

This talk addresses the design unconditionally secure multi-party computation (MPC) protocols in the asynchronous communication setting with optimal resilience. Our protocols are secure against a computationally unbounded malicious adversary characterized by an adversary structure Z, which enumerates all possible subsets of potentially corrupt parties. We present protocols with both perfect-security, as well as with statistical-security. Publication Information: This paper is published in Journal of Cryptology. Joint work with Ananya Appan and Anirudh Chandramouli. Speaker Biography Dr. Ashish Choudhury is an Associate Professor at the IIIT Bangalore. He received his Ph.D. in Computer Science from IIT Madras, India. Before joining IIIT Bangalore, Dr. Choudhury was an Assistant Professor at Jadavpur University. He held postdoctoral positions at University of Bristol and Indian Statistical Institute. Dr. Choudhury received Infosys Foundation Career Development Chair Professor award and Visvesvaraya Young Faculty Research Fellow award. His research interest is in the theoretical aspect of cryptography with a special focus on designing and analyzing multi-party computation protocols. Dr. Choudhury has co-authored a book titled “Secure Multi-Party Computation Against Passive Adversaries”.