Safe-Error Analysis of Post-Quantum Cryptography Mechanisms

Luk Bettale (1) , Simon Montoya (1, 2) , Guénaël Renault (3, 2)

1 Idemia
2 GRACE - Geometry, arithmetic, algorithms, codes and encryption
3 ANSSI - Agence nationale de la sécurité des systèmes d'information

The NIST selection process for standardizing Post-Quantum Cryptography Mechanisms is currently running. Many papers already studied their theoretical security, but the resistance in deployed device has not been much investigated so far. In particular, fault attack is a serious threat for algorithms implemented in embedded devices. One particularly powerful technique is to used safe-error attacks. Such attacks exploit the fact that a specific fault may or may not lead to a faulty output depending on a secret value. In this paper, we investigate the resistance of various Post-Quantum candidates algorithms against such attacks.

Domaines: Cryptographie et sécurité [cs.CR]

Luk Bettale, Simon Montoya, Guénaël Renault. Safe-Error Analysis of Post-Quantum Cryptography Mechanisms. FDTC 2021 - Fault Diagnosis and Tolerance in Cryptographie, Sep 2021, Virtual event, France. ⟨hal-03330189⟩