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Lecture
Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
This lecture covers privacy-preserving authentication methods, including secure multi-party computation and fully homomorphic encryption. It explores scenarios where the server does not trust the user and vice versa, presenting concepts like zero-knowledge proofs and Schnorr's proof of identification. The lecture delves into the properties and simulation of zero-knowledge proofs, as well as their applications in Schnorr signatures and non-interactive proofs. It also discusses the Fiat-Shamir heuristic and its role in converting interactive protocols. The session concludes with real-world applications of zero-knowledge proofs in various technologies, such as digital currencies, electronic voting systems, and privacy-friendly reputation systems.