January 17th at 18:00, in ILLC Seminar Room (F1.15)
Two millionaires want to compute who is richer, without revealing their own wealth. Both of them are highly suspicious and don’t trust anyone with their secret value. Is there a way they can do this computation without revealing too much private information? YES there is: Multiparty Computation (MPC)! The goal of Multiparty Computation is to create methods that enable parties to jointly compute a function over their inputs, while at the same time keeping these inputs private. One of the main tools to build a secure MPC protocol is secret sharing. In this presentation we will give a short introduction to cryptography and secret sharing and subsequently explain how MPC works by means of examples.