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A prototype of the framework AutoFault, which automatically constructs fault-injection attacks for hardware realizations of ciphers, is presented. AutoFault can be used to quickly evaluate the resistance of security-critical hardware blocks to fault attacks and the adequacy of implemented countermeasures. The framework takes as inputs solely the circuit description of the cipher and the fault(s) and...
Fault attacks are a major threat for hardware-implemented security primitives, and algebraic techniques (equation-solving) are one of the most powerful building blocks for such attacks. We show that structural models obtained from a circuit implementation of the analyzed cipher can lead to more efficient attacks than the functional models used in literature. We also discuss possible synergies of the...
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