Fault Space Transformation: A Generic Approach to Counter Differential Fault Analysis and Differential Fault Intensity Analysis on AES-like Block Ciphers - 2017


Classical fault attacks, like differential fault analysis(DFA) with biased fault attacks, like the differential fault intensity analysis (DFIA), are a major threat to cryptosystems in recent times. DFA uses pairs of fault-free and faulty ciphertexts to recover the key key. DFIA, on the other hand, combines principles of aspect-channel analysis and fault attacks to try and extract the key using faulty ciphertexts solely. Till date, no effective countermeasure which will thwart each DFA- in addition to DFIA-based attacks has been reported in the literature to the most effective of our data. In particular, ancient redundancy-based countermeasures that assume uniform fault distributions are found to be vulnerable against the DFIA due to its use of biased fault models. In this paper, we have a tendency to propose a unique generic countermeasure strategy that mixes the principles of redundancy with that of fault area transformation to achieve security against both DFA- and DFIA-based mostly attacks on AES-like block ciphers. As a case study, we have applied our proposed technique to obtain temporal and spatial redundancy-based mostly countermeasures for AES-128, and have evaluated their security against both DFA and DFIA via sensible experiments on a SASEBO-GII board. Results show that our proposed countermeasure makes it practically infeasible to obtain one instance of successful fault injection, even within the presence of biased fault models.

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