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Avalanche Analysis of Extended Feistel Network

Ibrahim, Subariah and Maarof, Mohd. Aizaini and Idris, Norbik Bashah (2005) Avalanche Analysis of Extended Feistel Network. In: Postgraduate Annual research Seminar, May 17-18, 2005, FSKSM, UTM.

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In general, block ciphers consist of one top-level structural model into which the round function F is plugged into. In order to analyze the security of a cipher, it is also important to study the intrinsic security provided by these top-level structural models. Most research focuses in determining F functions that yield secure Feistel Networks (FN). This paper analyses the structural models of a generalized concept of FN known as Extended Feistel Network (EFN). EFN splits the input blocks into n > 2 sub-blocks. Like conventional FN, EFN consists of a series of rounds whereby at least one sub-block is subjected to an F-function. The work examines the models in terms of its avalanche criterion in order to determine the optimal scheme suitable for the design of a flexible block size cipher. The analysis shows that EFN Type-II is the most optimal structural model for this design.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Feistel network
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:Computer Science and Information System
ID Code:3258
Deposited By: Subariah Ibrahim
Deposited On:11 Jun 2007 09:04
Last Modified:30 Aug 2017 07:45

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