ISSN : 2319-7323

INTERNATIONAL JOURNAL OF COMPUTER SCIENCE ENGINEERING

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