Distributed Network Secrecy

Lee, J.; Conti, Andrea; Rabbachin, Alberto; Win, Moe Z.

doi:10.1109/jsac.2013.130920

Cited by 38 publications

(27 citation statements)

References 59 publications

(59 reference statements)

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“…Therefore, according to (6), (16) and (17), at very high levels of the power, proposed scheme outperforms the previous scenario in terms of the secrecy capacity but it approaches an upper bound due to the location of the eavesdropper.…”

Section: Enhancing Secrecy Capacity Via Phase Shifting Schemementioning

confidence: 87%

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Secrecy capacity enhancement in two-hop DF relaying systems in the presence of eavesdropper

Nosrati

Wang

Khabbazibasmenj

2015

2015 IEEE International Conference on Communications (ICC)

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In this paper, we propose a random phase shifting scheme applied to modulated data symbols of a dual-hop decodeand-forward (DF) relaying system to enhance its secrecy capacity in the presence of an eavesdropper, which can wiretap the communication signals of both hops. The random phase shift used in the proposed scheme is generated using a shared secret between transmitter and receiver of each hop, such as the reciprocal channel between the communicating devices, which is not accessible to the eavesdropper. Through theoretical analysis of the secrecy capacity, we have proven that the proposed scheme improves the ergodic secrecy capacity of the system. Notably, the proposed scheme is energy efficient so it can be applied to the systems with limited power resources at source and relay nodes.Index Terms-Dual-hop relaying, secrecy capacity, decode-andforward.

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Section: Enhancing Secrecy Capacity Via Phase Shifting Schemementioning

confidence: 87%

“…(17) According to (16) and (17), it is obvious that γ E,P S < γ E which results in enhancement of secrecy capacity. Therefore, based on Subsection II-D it can be concluded that C s < C s,P S .…”

Section: Enhancing Secrecy Capacity Via Phase Shifting Schemementioning

confidence: 99%

Secrecy capacity enhancement in two-hop DF relaying systems in the presence of eavesdropper

Nosrati

Wang

Khabbazibasmenj

2015

2015 IEEE International Conference on Communications (ICC)

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“…Moreover, the information rate loss due to the path overlapping is larger in NLOS scenarios than in LOS scenarios, because there are more MPCs in the former scenarios. 13 Finally, Fig. 4(b) shows the intrinsic information rate as a function of the transmission bandwidth for different SNRs.…”

Section: R(rmentioning

confidence: 99%

Intrinsic Information of Wideband Channels

Shen

Win

2013

IEEE J. Select. Areas Commun.

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Abstract-The ability to exchange secret messages and protect against security attacks becomes increasingly important for providing information superiority and confidentiality in modern information systems. These systems require shared secret keys, which can be generated from common random sources with known distributions. However, the assumption on the distribution of the sources may not hold in many realistic scenarios. In this paper, we establish a mathematical framework for secret-key generation using common unknown deterministic sources (UDSs). In particular, we propose a new information measure called intrinsic information to characterize the achievable length of the secret key that can be generated from a UDS. As a case study, we consider a wideband propagation medium in mobile wireless networks as a UDS and derive its intrinsic information as a function of various network parameters. Our results provide a non-Bayesian perspective for secret-key generation as well as practical implications of this new perspective.

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“…In a network setting, spatial distribution of nodes plays an important role, and the Poisson point process (PPP) is used to investigate wireless networks with secrecy [34]- [39]. 2 We advocate the exploitation of wireless network intrinsic properties (e.g., network interference) to strengthen communication secrecy.…”

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confidence: 99%

Wireless Network Intrinsic Secrecy

Rabbachin

Conti

Win

2015

IEEE/ACM Trans. Networking

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Abstract-Wireless secrecy is essential for communication confidentiality, health privacy, public safety, information superiority, and economic advantage in the modern information society. Contemporary security systems are based on cryptographic primitives and can be complemented by techniques that exploit the intrinsic properties of a wireless environment. This paper develops a foundation for design and analysis of wireless networks with secrecy provided by intrinsic properties such as node spatial distribution, wireless propagation medium, and aggregate network interference. We further propose strategies that mitigate eavesdropping capabilities, and we quantify their benefits in terms of network secrecy metrics. This research provides insights into the essence of wireless network intrinsic secrecy and offers a new perspective on the role of network interference in communication confidentiality.

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Distributed Network Secrecy

Cited by 38 publications

References 59 publications

Secrecy capacity enhancement in two-hop DF relaying systems in the presence of eavesdropper

Secrecy capacity enhancement in two-hop DF relaying systems in the presence of eavesdropper

Intrinsic Information of Wideband Channels

Wireless Network Intrinsic Secrecy

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