relation: https://khub.utp.edu.my/scholars/1962/
title: Secure interleaving - Physical layer security enhancement of OFDM based system
creator: Asif Khan, M.
creator: Jeoti, V.
creator: Shahid Manzoor, R.
description: Interleavers are typically used to distribute burst of errors, so they appear as simple random errors. Alternatively, if interleaving patterns are kept secure, then these patterns can be introduced as a physical (PHY) layer security device. In this paper, an efficient technique to introduce security at physical (PHY) layer is proposed to enhance the security of 802.11i, which is designed to improve the security at medium access control. Since it does not emphasize on availability therefore several denial of service (DoS) attacks are possible. The DoS attacks are easy to mount because management and control frames are unprotected and so are MAC headers. This paper proposes a secure seed based random interleaving technique to scramble the OFDM constellation symbols to encrypt data transmission to resist these malicious attacks. In order to analyze the suitability of proposed technique as PHY layer security device keysensitivity analysis is carried out. The scrambling is completely reversible with the use of appropriate key. However, use of a wrong initial condition even at 4th decimal point produces entirely different sequence resulting in erroneous constellations with equal probability. To analyze the effectiveness of proposed technique various security attacks are analyzed in detail. © 2011 Springer-Verlag.
date: 2011
type: Article
type: PeerReviewed
identifier:   Asif Khan, M. and Jeoti, V. and Shahid Manzoor, R.  (2011) Secure interleaving - Physical layer security enhancement of OFDM based system.  Communications in Computer and Information Science, 171 CC.  pp. 349-361.  ISSN 18650929     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-80051573655&doi=10.1007%2f978-3-642-22729-5_30&partnerID=40&md5=460dbc153eadc912ca93acf5cc59c362
relation: 10.1007/978-3-642-22729-5₃₀
identifier: 10.1007/978-3-642-22729-5₃₀