Related-Differential Distinguishers on up to 7 Rounds of AES

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Round-reduced variants of AES are widely used as building blocks in the design of cryptographic schemes. The study of non-random properties and distinguishers for round-reduced AES has always been an important research topic. The longest known secret-key distinguishers on AES cover 6 rounds. Related differences and related differentials were introduced by the designers of AES in 2009, but research in this direction remains limited. In this paper, we provide a new perspective on related differenc