Efficient Algorithms for Computing Differential Properties of Addition
نویسندگان
چکیده
In this paper we systematically study the differential properties of addition modulo 2n. We derive (log n)-time algorithms for most of the properties, including differential probability of addition. We also present log-time algorithms for finding good differentials. Despite the apparent simplicity of modular addition, the best known algorithms require naive exhaustive computation. Our results represent a significant improvement over them. In the most extreme case, we present a complexity reduction from (24n) to (log n).
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