Journal ArticleDOI
Wireless Information-Theoretic Security
TLDR
A practical secure communication protocol is developed, which uses a four-step procedure to ensure wireless information-theoretic security and is shown that the protocol is effective in secure key renewal-even in the presence of imperfect channel state information.Abstract:
This paper considers the transmission of confidential data over wireless channels. Based on an information-theoretic formulation of the problem, in which two legitimates partners communicate over a quasi-static fading channel and an eavesdropper observes their transmissions through a second independent quasi-static fading channel, the important role of fading is characterized in terms of average secure communication rates and outage probability. Based on the insights from this analysis, a practical secure communication protocol is developed, which uses a four-step procedure to ensure wireless information-theoretic security: (i) common randomness via opportunistic transmission, (ii) message reconciliation, (iii) common key generation via privacy amplification, and (iv) message protection with a secret key. A reconciliation procedure based on multilevel coding and optimized low-density parity-check (LDPC) codes is introduced, which allows to achieve communication rates close to the fundamental security limits in several relevant instances. Finally, a set of metrics for assessing average secure key generation rates is established, and it is shown that the protocol is effective in secure key renewal-even in the presence of imperfect channel state information.read more
Citations
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Proceedings ArticleDOI
Low-power secret-key agreement over OFDM
Francesco Renna,Nicola Laurenti,Stefano Tomasin,Marco Baldi,Nicola Maturo,Marco Bianchi,Franco Chiaraluce,Matthieu R. Bloch +7 more
TL;DR: In this paper, the problem of secret-key agreement by sharing randomness at low power over an orthogonal frequency division multiplexing (OFDM) link, in the presence of an eavesdropper, was considered and a practical approach to key sharing was obtained by using low-density parity check (LDPC) codes for information reconciliation.
Journal ArticleDOI
Secrecy performance of MIMO Nakagami-m wiretap channels with optimal TAS and different antenna schemes
Daniel Benevides da Costa,Nuwan S. Ferdinand,Ugo Silva Dias,Rafael T. de Sousa,Matti Latva-aho +4 more
TL;DR: This paper proposes a novel TAS scheme for multiple‐input multiple‐output wiretap channels by exploiting full channel state information and achieves higher secrecy performance by selecting an antenna that maximises the secrecy rate.
Journal ArticleDOI
Effects of Channel Correlation on Outage Secrecy Capacity
Proceedings ArticleDOI
The Optimal Preprocessing Approach for Secret Key Generation from OFDM Channel Measurements
TL;DR: Numerical results verify that the proposed PCA preprocessing outperforms other tall unitary transforms and thus, it can be used to generate secret key with high key generation rate (KGR), low key error rate (KER) and good randomness.
Proceedings ArticleDOI
Virtual MIMO-based cooperative beamforming and jamming scheme for the clustered wireless sensor network security
TL;DR: This paper proposes a joint cooperative beamforming and jamming scheme to enhance the security of the WSNs where a part of sensor nodes in Alice's cluster are deployed to transmit beamforming signals to Bob while a part to jam Eve with artificial noise.
References
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Book
Wireless Communications: Principles and Practice
TL;DR: WireWireless Communications: Principles and Practice, Second Edition is the definitive modern text for wireless communications technology and system design as discussed by the authors, which covers the fundamental issues impacting all wireless networks and reviews virtually every important new wireless standard and technological development, offering especially comprehensive coverage of the 3G systems and wireless local area networks (WLANs).
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New Directions in Cryptography
TL;DR: This paper suggests ways to solve currently open problems in cryptography, and discusses how the theories of communication and computation are beginning to provide the tools to solve cryptographic problems of long standing.
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Communication theory of secrecy systems
TL;DR: A theory of secrecy systems is developed on a theoretical level and is intended to complement the treatment found in standard works on cryptography.
Book
Fundamentals of Wireless Communication
David Tse,Pramod Viswanath +1 more
TL;DR: In this paper, the authors propose a multiuser communication architecture for point-to-point wireless networks with additive Gaussian noise detection and estimation in the context of MIMO networks.