Abstract
In ACISP 2008, the hash family DASH has been proposed by Billet et al., which considers the design of Rijndael and RC6. DASH family has two variants that support 256-bit and 512-bit output length respectively. This paper presents the first third-party cryptanalysis of DASH-256 with a focus on the underlying block cipher \( {{\mathcal{A}}_{256 }} \). In particular, we study the distinguisher using differential and boomerang attack. As a result, we build a distinguishing attack for the compression function of DASH-256 with 8-round \( {{\mathcal{A}}_{256 }} \) using the differential cryptanalysis. Finally, we obtain a boomerang distinguisher of 9-round \( {{\mathcal{A}}_{256 }} \).
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The work is supported by the National Natural Sciences Foundation of China under Grant No. 61100201 and Foundation for Distinguished Young Talents in Higher Education of Guangdong Province of China under Grant No. LYM11053.
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Liu, SS., Gong, Z. & Wang, LB. Cryptanalysis of Reduced-Round DASH. J. Comput. Sci. Technol. 28, 159–164 (2013). https://doi.org/10.1007/s11390-013-1320-x
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DOI: https://doi.org/10.1007/s11390-013-1320-x