Abstract
Current state-of-the-art countermeasures against Fault Injection Attacks (FIA) provide good protection against analysis methods that require the differences in the correct and faulty ciphertext to derive the secret information, such as Differential Fault Analysis (DFA) or collision fault analysis. However, recent progress in Ineffective Fault Analysis (IFA) and Statistical IFA (SIFA) constitutes a real threat against cryptographic implementations. Such methods cannot be thwarted by standard FIA countermeasures that focus on detecting the change in the intermediate data. In this brief, we present a novel method based on error correcting codes that protects implementations against SIFA. We design a set of universal error-correcting gates that can be used for block cipher implementations. We analyze a hardware implementation of protected GIFT-64 and show that our method provides 100% protection against SIFA.
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