Publicaties

The act of executing a program on a computing platform produces inadvertent side effects that depend on the data being processed. Microarchitectural side- channel attacks leverage the side effects stemming from interference in shared
hardware components to extract potentially sensitive data. Arguably the most important class of microarchitectural side-channel attacks are cache attacks, which target the shared cache hierarchy. This thesis ...

Recent secure cache designs aim to mitigate side-channel attacks by randomizing the mapping from memory addresses to cache sets. As vendors investigate deployment of these caches, it is crucial to understand their actual security. In this paper, we consolidate existing randomization-based secure caches into a generic cache model. We then comprehensively analyze the security of existing designs, including CEASER-S and ScatterCache, by mapping ...

Highly efficient encryption and authentication of short messages is an essential requirement for enabling security in constrained scenarios such as the CAN FD in automotive systems (max. message size 64 bytes), massive IoT, critical communication domains of 5G, and Narrowband IoT, to mention a few. In addition, one of the NIST lightweight cryptography project requirements is that AEAD schemes shall be “optimized to be efficient for short ...

© 2019, Springer Nature Switzerland AG. When deployed in a potentially hostile environment, security-critical devices are susceptible to physical attacks. Consequently, cryptographic implementations need to be protected against side-channel analysis, fault attacks and attacks that combine both approaches. CAPA (CRYPTO 2018) is an algorithm-level combined countermeasure, based on MPC, with provable security in a strong attacker model. A key ...