A new design of cryptographic hash function: gear

Alkandari, Abdulaziz M and Alkandari, Khalil Ibrahim and Taha, Imad and Alahmad, Mohammad A. (2015) A new design of cryptographic hash function: gear. International Journal on Perceptive and Cognitive Computing (IJPCC), 1 (1). pp. 29-34. ISSN 2462 - 229X

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Abstract

A hash function is any function that can be used to map data of arbitrary size to data of fixed size. A hash function usually has two main components: a permutation function or compression function and mode of operation. We will propose a new concrete novel design of a permutation based hash functions called Gear in this paper. 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. And the permutations functions used in Gear are inspired from the SHA-3 finalist Grøestl hash function which is originally inspired from Rijndael design (AES). There is a very strong confusion and diffusion in Gear as a result.

Item Type:	Article (Journal)
Additional Information:	6534/50762
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 > Department of Computer Science Kulliyyah of Information and Communication Technology > Department of Computer Science
Depositing User:	Professor Imad Taha
Date Deposited:	16 Jun 2016 10:42
Last Modified:	20 Jul 2016 10:28
URI:	http://irep.iium.edu.my/id/eprint/50762

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