Quantum differential cryptanalysis to the block ciphers
This work addresses cryptanalysis challenges for security researchers, but it appears incremental as it builds on existing quantum algorithm advancements without claiming broad breakthroughs.
The paper tackles the limitations of traditional differential cryptanalysis in attacking block ciphers by proposing two methods that apply quantum algorithms to improve efficiency and success probabilities, such as using quantum algorithms for high-probability differential finding in S-Boxes and for the entire encryption process.
Differential cryptanalysis is one of the most popular methods in attacking block ciphers. However, there still some limitations in traditional differential cryptanalysis. On the other hand, researches of quantum algorithms have made great progress nowadays. This paper proposes two methods to apply quantum algorithms in differential cryptanalysis, and analysis their efficiencies and success probabilities. One method is using quantum algorithm in the high probability differential finding period for every S-Box. The second method is taking the encryption as a whole, using quantum algorithm in this process.