Title: A lightweight chaos-based cryptosystem for dynamic security management in real-time overloaded applications

Authors: Maryline Chetto; Safwan El Assad; Mousa Farajallah

Addresses: IRCCyN Institute, University of Nantes, 1 Rue de la Noé, 44321 Nantes, France ' IETR Institute, University of Nantes, La Chantrerie, 44306 Nantes cedex 03, France ' IETR Institute, University of Nantes, La Chantrerie, 44306 Nantes cedex 03, France

Abstract: A growing number of systems are highly connected and distributed over the internet. These systems require innovative software services and infrastructures in order to guarantee security and reliability. This issue has a particular relation to a wide range of topics such as real-time scheduling and encryption with quality of service constraints which are the main interests of this paper. The first contribution is a chaos-based cryptosystem which provides an acceptable level of security while executing at least 41 times faster than the AES algorithm. Secondly, we propose a scheduling scheme known as the deadline mechanism in order to guarantee an acceptable level of security even in computing overload situations. Dynamically choosing the best possible cryptosystem in dependance with processing availability is the basis of our mechanism.

Keywords: real-time constraints; scheduling; periodic tasks; wireless sensor networks; WSNs; chaos-based cryptosystems; dynamic security management; real-time overloaded applications; cryptography; network security; encryption; quality of service; QoS constraints.

DOI: 10.1504/IJITST.2014.065187

International Journal of Internet Technology and Secured Transactions, 2014 Vol.5 No.3, pp.262 - 274

Received: 26 Dec 2013
Accepted: 26 Jun 2014

Published online: 28 Oct 2014 *

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