Abstract
In this paper we propose a notion of related-key rectangle attack using 4 related keys. It is based on two consecutive related-key differentials which are independent of each other. Using this attack we can break SHACAL-1 with 512-bit keys up to 70 rounds out of 80 rounds and AES with 192-bit keys up to 8 rounds out of 12 rounds, which are faster than exhaustive search.
The first author was supported by the Post-doctoral Fellowship Program of Korea Science & Engineering Foundation (KOSEF). The second and the third authors were supported by the MIC(Ministry of Information and Communication), Korea, supervised by the IITA(Institute of Information Technology Assessment.)
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Hong, S., Kim, J., Lee, S., Preneel, B. (2005). Related-Key Rectangle Attacks on Reduced Versions of SHACAL-1 and AES-192. In: Gilbert, H., Handschuh, H. (eds) Fast Software Encryption. FSE 2005. Lecture Notes in Computer Science, vol 3557. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11502760_25
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DOI: https://doi.org/10.1007/11502760_25
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