Exposing Data Value On a Risc-V Based SoC - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue IEEE Access Année : 2022

Exposing Data Value On a Risc-V Based SoC

Résumé

With the threat of side-channel attacks on embedded systems, hardware designers are increasingly relying on side-channel leakage assessment to strengthen their chips. Traditionally performed with the aim of protecting encryption algorithms, these leakage analyses are progressively carried out on the micro-architecture elements of various circuits. In most works, the authors supposed and exploited Hamming Distance and Hamming Weight leakage models for CPU instructions disassembly or attacking cryptographic algorithms. In this paper we first confirm and harness these leakage models on interconnect bus and registers of a RISC-V based ASIC SoC (28 nm bulk) through a template attack, thus, giving the expected success rate and the average number of traces needed and we introduce a data value recovery attack on the interconnect bus. Actually, we consider our recorded leakage to be the direct leakage of the value of the data as opposed to its Hamming weight or distance. We present a stochastic model approach to compute the leakage coefficients of each bit in the data and a template attack to recover a given byte of the data. We also describe and discuss a scenario that helps infer the full data value using the template attack in a divide and conquer approach.
Fichier non déposé

Dates et versions

cea-04177248 , version 1 (04-08-2023)

Identifiants

Citer

Ezinam-Bertrand Talaki, Mathieu Bouvier Des Noes, Olivier Savry, David Hely, Simone Bacles-Min, et al.. Exposing Data Value On a Risc-V Based SoC. IEEE Access, 2022, pp.1-8. ⟨10.1109/PAINE54418.2021.9707710⟩. ⟨cea-04177248⟩
28 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More