International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 01 September 2014

Hélène Le Bouder , Ronan Lashermes , Yanis Linge , Bruno Robisson, Assia Tria
ePrint Report ePrint Report
The security of cryptographic algorithms can be consideredin two contexts. On the one hand, these algorithms can be proven secure mathematically. On the other hand, physical attacks can weaken the implementation of an algorithm yet proven secure. Under the common name of physical attacks, different attacks are regrouped: side channel

attacks and fault injection attacks. This paper presents a common formalism for these attacks and highlights their underlying principles. All physical attacks on symmetric algorithms can be described with a 3-step process. Moreover it is possible to compare different physical attacks, by separating the theoretical attack path and the experimental parts of the attacks.

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