This lecture covers the security aspects of mobile telephony, focusing on the challenges faced in 2G and the improvements introduced in 3G. Topics include GSM encryption algorithms, the MILENAGE protocol, security misses, and other standards like DECT and EDGE. The lecture also discusses collision search algorithms and integrity/authentication issues in cryptographic functions.
Serge Vaudenay entered at the Ecole Normale Supérieure in 1989 with a major in mathematics. He earned his agrégation (secondary teaching degree) in mathematics in 1992, then a PhD in Computer Science at the University of Paris 7 - Denis Diderot in 1995. He subsequently became a senior research fellow at the CNRS, prior to being granted his habilitation à diriger des recherches (a postdoctoral degree authorizing the recipient to supervise doctoral students). In 1999, he was appointed as a Professor at the EPFL, where he created the Security and Cryptography Laboratory.
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This course introduces the basics of cryptography. We review several types of cryptographic primitives, when it is safe to use them and how to select the appropriate security parameters. We detail how
Explores message authentication codes and their formalism, with a focus on mobile telephony, covering topics like misuse attacks, security notions, and GSM architecture.
Explores the commitment scheme, key derivation function, and pseudorandom generator in cryptographic protocols, emphasizing their role in ensuring data integrity and authentication.
