The use of 128-bit random nonce as part of the input state makes the cipher resistant against classical cryptanalysis techniques such as differential cryptanalysis, linear cryptanalysis, and variants. ![]() ASCON is an authenticated cipher, the CAESAR competition winner under lightweight use case portfolio, in February 2019. This paper aims at evaluating the security of ASCON against fault analysis attacks. Therefore, it is imperative to perform a meticulous security evaluation of lightweight ciphers against such implementation attacks. The largest security threat that such devices incur comprises implementation-based attacks, such as fault attacks, power analysis attacks, etc. Present-day IoT systems that capture, process, and transfer real-world data, employ lightweight ciphers in sensor devices for applications with multiple limitations, such as restricted size, power consumption, and processing speed.
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