Let’s Tessellate: Tiling for Security Against Advanced Probe and Fault Adversaries

The wire probe-and-fault models are currently the most used to provide arguments for side-channel and fault security. However, several practical attacks not yet covered by these models. This work extends model include more advanced faults such as area permanent faults. Moreover, we show tile adversary from CRYPTO 2018’s CAPA envelops extended along with known extensions probing glitches, transitions, couplings. In other words, tiled (tessellated ) designs offer security guarantees even against probe adversaries. As use multi-party computation techniques, countermeasures typically expensive software/hardware. investigates a countermeasure based on ISW methodology which is shown perform significantly better than parameters.