Known-key distinguishers on 15-round 4-branch type-2 generalised Feistel networks with single substitution–permutation functions and near-collision attacks on its hashing modes

Le Dong, Wenling Wu, Jian Zou, Yanling Wang
  • IET Information Security, September 2015, the Institution of Engineering and Technology (the IET)
  • DOI: 10.1049/iet-ifs.2014.0402

Known-key distinguishers on type-2 generalised Feistel networks

What is it about?

In this study, the authors present a new result of the 4-branch type-2 GFN, whose round function is a single SP-function. They show some 15-round truncated differential distinguishers for this network with four usual parameters by utilising some rebound attack techniques. Based on these distinguishers, they construct some 15-round near-collision attacks on the Matyas–Meyer–Oseas and Miyaguchi–Preneel compression function modes in which the 4-branch type-2 GFN with the single SP-function is used.

Why is it important?

Construct some 15-round near-collision attacks on the Matyas–Meyer–Oseas and Miyaguchi–Preneel compression function modes in which the 4-branch type-2 GFN with the single SP-function is used.

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http://dx.doi.org/10.1049/iet-ifs.2014.0402

The following have contributed to this page: Professor Dong Le

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