Design and analysis of a new hash function gear

Alshaikhli, Imad Fakhri Taha and Alahmad, Mohammad (2014) Design and analysis of a new hash function gear. In: 7th International Conference on Security of Information and Networks (SIN'14), 9-11 Sept 2014, Glaslow, UK.

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Abstract

A hash function usually has two main components: a compression function or permutation function and mode of operation. In this paper, we propose a new concrete novel design of a permutation based hash functions called Gear. It is a hash function based on block cipher in Davies-Meyer mode. It uses the patched version of Merkle-Damgård, i.e. the wide pipe construction as its mode of operation. Thus, the intermediate chaining value has at least twice larger length than the output hash. Also, we analyze Gear and prove it is hard to attack it with complexities significantly less than brute force and it resists all the generic attacks. And the permutations functions used in Gear are inspired from the SHA-3 finalist Grøstl hash function which is originally inspired from Rijndael design (AES). As a consequence there is a very strong confusion and diffusion in Gear.

Item Type:	Conference or Workshop Item (UNSPECIFIED)
Additional Information:	6534/41360 (ISBN: 978-1-4503-3033-6, DOI: 10.1145/2659651.2659652)
Uncontrolled Keywords:	WP - permutation – block cipher – AES
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Information and Communication Technology Kulliyyah of Information and Communication Technology
Depositing User:	Professor Imad Taha
Date Deposited:	26 Feb 2015 16:26
Last Modified:	19 Jun 2018 08:49
URI:	http://irep.iium.edu.my/id/eprint/41360

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