Pseudorandomness analysis of the (extended) Lai–Massey scheme

Luo, Yiyuan and Lai, Xuejia and Gong, Zheng (2010) Pseudorandomness analysis of the (extended) Lai–Massey scheme. Information Processing Letters, 111 (2). pp. 90-96. ISSN 0020-0190

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Abstract:	In this paper we find that the two-round (extended) Lai–Massey scheme is not pseudorandom and three-round (extended) Lai–Massey scheme is not strong pseudorandom. Combined with previous work, we prove that three rounds are necessary and sufficient for the pseudorandomness and four rounds are necessary and sufficient for the strong pseudorandomness.
Item Type:	Article
Copyright:	© 2010 Elsevier
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Distributed and Embedded Systems (DIES)
Link to this item:	http://purl.utwente.nl/publications/74580
Official URL:	http://dx.doi.org/10.1016/j.ipl.2010.10.012
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