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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Journal ArticleDOI
An Analysis on Secure Communication in Millimeter/Micro-Wave Hybrid Networks
TL;DR: Using a network model that accounts for uncertainties both in node locations and blockages, the conditional connection outage probability and the secrecy outage probability of hybrid networks with multiple eavesdroppers are characterized under basic factors, such as density of eavesdropping nodes, antenna gain, and blockage density.
Journal ArticleDOI
Secure Transmission in MISOME Wiretap Channel With Multiple Assisting Jammers: Maximum Secrecy Rate and Optimal Power Allocation
TL;DR: The results reveal that the proposed jammer-assisted secure transmission can greatly improve the secrecy performance and meanwhile save more energy for information signals, which is significant for future wireless communication.
Journal ArticleDOI
Secure Transmission for Multiuser Relay Networks
Sung-il Kim,Il-Min Kim,Jun Heo +2 more
TL;DR: It is revealed that the ergodic secrecy rate can be increased as the number of users grows and much higher secrecy rateCan be achieved by the MUCJ, which is optimal in the sense of maximizing the secrecy rate.
Proceedings ArticleDOI
Proactive eavesdropping via cognitive jamming in fading channels
Jie Xu,Lingjie Duan,Rui Zhang +2 more
TL;DR: In this paper, the authors proposed a proactive eavesdropping via cognitive jamming, in which the legitimate monitor purposely jams the receiver and changes the suspicious communication (e.g., to a smaller data rate) in order to overhear easily.
Journal ArticleDOI
Limitations of generating a secret key using wireless fading under active adversary
TL;DR: The effectiveness of generating a secret key from wireless fading is limited when considering active adversaries, and analytical results are obtained that quantify the minimum number of information-bits that must be exchanged to obtain one bit of shared secret key.
References
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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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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.
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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.