Darmstadt-Warsaw Research Seminar on Cryptography and Blockchains: Post-Quantum Multi-Party Computation

Organizer:
Prof. Sebastian Faust (TU Darmstadt)
Prof. Stefan Dziembowski (University of Warsaw)

Abstract

We initiate the study of multi-party computation (MPC) for classical functionalities (in the plain model) with security against malicious polynomial-time quantum adversaries. As our main result, we present the first construction of *constant-round* MPC with post-quantum security. We assume mildly super-polynomial quantum hardness of learning with errors (LWE), and polynomial quantum hardness of an LWE-based circular security assumption.

Short bio

https://sites.google.com/view/giuliomalavolta/

Links

• Talk: Online via Zoom
• Networking: Online – the link will be shared during the Zoom session