ISSN : 2319-7323




INTERNATIONAL JOURNAL OF COMPUTER SCIENCE ENGINEERING


Open Access

ABSTRACT

Title : Enhanced Chaotic Block Cipher Algorithm for Image Cryptosystems
Authors : Vishnu G. Kamat, Madhu Sharma
Keywords : Encryption; Chaotic Maps; Block Cipher; Security Analysis
Issue Date : March 2014
Abstract : In this paper, we provide possible vulnerabilities of the algorithm set forth by Mohamed Amin et al. [Commun. Nonlinear Sci. Numer. Simulat. 15, 3484-97, (2010)]. They proposed a block cipher algorithm using chaotic Tent map. For the Feistel structure used there are a certain vulnerabilities that can be exploited to find out the rotations the plaintext goes through. For a small number of rounds this can be used to retrieve the plaintext or the key. Hence we have proposed an enhanced algorithm which shows favorable results.
Page(s) : 117-124
ISSN : 2319-7323
Source : Vol. 3, No.2