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Improved Side-Channel Resistance by Dynamic Fault-Injection Countermeasures

Jan Richter-Brockmann1, Tim G├╝neysu1,2

1 Ruhr-Universit├Ąt Bochum, Germany 2 DFKI, Germany

Abstract

Side-channel analysis and fault-injection attacks are known as serious threats to cryptographic hardware implementations and the combined protection against both is currently an open line of research. A promising countermeasure with considerable implementation overhead appears to be a mix of first-order secure Threshold Implementations and linear ErrorCorrecting Codes.
In this paper we employ for the first time the inherent structure of non-systematic codes as fault countermeasure which dynamically mutates the applied generator matrices to achieve a higher-order side-channel and fault-protected design. As a case study, we apply our scheme to the PRESENT block cipher that do not show any higher-order side-channel leakage after measuring 150 million power traces.

Video

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