Abstract
Using a new 4-round impossible differential in AES that allows us to exploit the redundancy in the key schedule of AES-128 in a way more effective than previous work, we present a new impossible differential attack on 7 rounds of this block cipher. By this attack, 7-round AES-128 is breakable with a data complexity of about 2106 chosen plaintexts and a time complexity equivalent to about 2110 encryptions. This result is better than any previously known attack on AES-128 in the single-key scenario.
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Mala, H., Dakhilalian, M., Rijmen, V., Modarres-Hashemi, M. (2010). Improved Impossible Differential Cryptanalysis of 7-Round AES-128. In: Gong, G., Gupta, K.C. (eds) Progress in Cryptology - INDOCRYPT 2010. INDOCRYPT 2010. Lecture Notes in Computer Science, vol 6498. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17401-8_20
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DOI: https://doi.org/10.1007/978-3-642-17401-8_20
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