Abstract
Based on the compression function of the hash function standard SHA-256, SHACAL-2 is a 64-round block cipher with a 256-bit block size and a variable length key of up to 512 bits. In this paper, we present a related-key rectangle attack on 42-round SHACAL-2, which requires 2243.38 related-key chosen plaintexts and has a running time of 2488.37. This is the best currently known attack on SHACAL-2.
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Lu, J., Kim, J., Keller, N., Dunkelman, O. (2006). Related-Key Rectangle Attack on 42-Round SHACAL-2. In: Katsikas, S.K., López, J., Backes, M., Gritzalis, S., Preneel, B. (eds) Information Security. ISC 2006. Lecture Notes in Computer Science, vol 4176. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11836810_7
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DOI: https://doi.org/10.1007/11836810_7
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