Abstract
SHACAL-2 is a 256-bit block cipher with various key sizes based on the hash function SHA-2. Recently, it was recommended as one of the NESSIE selections. This paper presents differential-linear type attacks on SHACAL-2 with 512-bit keys up to 32 out of its 64 rounds. Our 32-round attack on the 512-bit keys variants is the best published attack on this cipher.
This work was supported (in part) by the Ministry of Information & Communications, Korea, under the information Technology Research Center (ITRC) Support Program.
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Shin, Y., Kim, J., Kim, G., Hong, S., Lee, S. (2004). Differential-Linear Type Attacks on Reduced Rounds of SHACAL-2. In: Wang, H., Pieprzyk, J., Varadharajan, V. (eds) Information Security and Privacy. ACISP 2004. Lecture Notes in Computer Science, vol 3108. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-27800-9_10
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DOI: https://doi.org/10.1007/978-3-540-27800-9_10
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