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
Secrecy transmission with a helper: To relay or not to relay
TL;DR: This paper considers secure communications between a source and a destination helped by a relay, in the presence of an eavesdropper, and gives some insight into the choice of transmission schemes to achieve a better performance.
Proceedings ArticleDOI
Experimental Investigation of MIMO Reciprocal Channel Key Generation
Jon W. Wallace,Rajesh K. Sharma +1 more
TL;DR: This work presents a new MIMO measurement campaign performed in LOS and NLOS indoor environments that studies the correlation of the channel between legitimate users with the eavesdropper channel, revealing what key generation rates can be attained in practice and what fraction of generated key bits are safe from eavesdroppers.
Proceedings ArticleDOI
Secrecy capacity and secure outage performance for rayleigh fading simo channel
TL;DR: This paper defines the ergodic secrecy capacity and finds the optimal power allocation at the transmitter that achieves the secrecy capacity for the full channel state information (CSI) case, where transmitter has access to both the main channel and eavesdropper's channel gains.
Proceedings ArticleDOI
Robustness of secret key agreement protocol with massive MIMO under pilot contamination attack
TL;DR: Simulation results show that theSKA protocol effectively suppresses the eavesdropper's PCA power by adjusting a threshold determining the suspension of the PCA, and a positive length of secret key is achievable through the authors' SKA protocol.
Journal ArticleDOI
Secure Transmission Design and Performance Analysis for Cooperation Exploring Outdated CSI
TL;DR: Under the assumption of outdated CSI, the transmission design and secrecy performance in cooperative networks is studied and some new insights into the secrecy performance of ODF are provided via the analysis of reliability-security tradeoff (RST) and secrecy throughput.
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.