Abstract
In this paper, we propose a novel impossible differential attack on 7-round AES-128. Firstly, we construct some new 2-round impossible differentials of AES, which allow us to distinguish the wrong keys from the correct key more efficiently. Based on them, we present an impossible differential attack on 7-round AES-128. The data complexity is about \( 2^{80} \) chosen plaintexts. Compared to the best known result, the data complexity of our attack is reduced by nearly \( 2^{ - 26.2} \) times.
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Acknowledgments
This work has been supported by the National Natural Science Foundation of China (No. 61073150 and No. 61003278), the Opening Project of Shanghai Key Laboratory of Integrate Administration Technologies for Information Security, and the Fundamental Research Funds for the Central Universities.
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Liu , Y., Gu, D., Liu, Z., Li, W., Kong, W. (2012). New Improved Impossible Differential Attack on Reduced-Round AES-128. In: J. (Jong Hyuk) Park, J., Chao, HC., S. Obaidat, M., Kim, J. (eds) Computer Science and Convergence. Lecture Notes in Electrical Engineering, vol 114. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2792-2_43
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DOI: https://doi.org/10.1007/978-94-007-2792-2_43
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