Quantum Differential Cryptanalysis

November 25, 2018 Β· Declared Dead Β· πŸ› Scientific Reports

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Authors Qing Zhou, Songfeng Lu, Zhigang Zhang, Jie Sun arXiv ID 1811.09931 Category quant-ph: Quantum Computing Cross-listed cs.CR Citations 16 Venue Scientific Reports Last Checked 5 months ago
Abstract
In this paper, we propose a quantum version of the differential cryptanalysis which offers a quadratic speedup over the existing classical one and show the quantum circuit implementing it. The quantum differential cryptanalysis is based on the quantum minimum/maximum-finding algorithm, where the values to be compared and filtered are obtained by calling the quantum counting algorithm. Any cipher which is vulnerable to the classical differential cryptanalysis based on counting procedures can be cracked more quickly under this quantum differential attack.
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