Paper Info
Title
Chaos-Based Key Stream Generator Based On Multiple Maps Combinations And Its Application To Images Encryption
Abstract
In recent years, growing number of cryptosystems based on chaos have been proposed. However. most of them encounter some problems such as: low level of security and small key space. The key stream generator is the ken design issue of an encryption system. It directly determines security and efficiency, but most of the proposed key streams are binary valued, and suffer from short period and limited key space. In this paper, we propose an n-ary key stream generator, based on hierarchical combination of three chaotic maps. We demonstrate that the produced key streams have good statistical properties, such as uniform distribution, delta-like auto-correlation function, near-zero cross-correlation and very height sensitivity to initial conditions, under precision restricted condition. An image cryptosystem is constructed using the proposed approach and pro 1, ell to be enough secure to resist various attacks. Complexity is analysed and an effective acceleration of chaos-based image cryptosystems is shown to be achievable.
Year
Venue
Keywords
2010
INTERNATIONAL ARAB JOURNAL OF INFORMATION TECHNOLOGY
Chaotic maps, images cryptography, key stream generation, security
Field
DocType
Volume
Computer science,Uniform distribution (continuous),Theoretical computer science,Encryption,Artificial intelligence,Chaotic,Binary number,Key space,Pattern recognition,Algorithm,Cryptosystem,40-bit encryption,Probabilistic encryption
Journal
7
Issue
ISSN
Citations 
3
1683-3198
8
PageRank 
References 
Authors
0.74
7
1
Name
Order
Citations
PageRank
Kamel Faraoun180.74