Delay Analysis of Physical-Layer Key Generation in Dynamic Roadside-to-Vehicle Networks

Jin, Rong; Du, Xianru; Zeng, Kai; Huang, Lijia; Xiao, Laiyuan; Xu, Jing

doi:10.1109/tvt.2016.2582853

Cited by 24 publications

(9 citation statements)

References 22 publications

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“…The other operations are the same as those of the scheme in [135]. The reference-channel based scheme has to carry out pairwise channel probing between two users, which was found inefficient by the study of Jin et al in pairwise-based multiuser key generation [245]. A pair of scheduling algorithms were discussed, namely serial and parallel probing.…”

Section: ) Star Topologymentioning

confidence: 99%

A New Frontier for IoT Security Emerging From Three Decades of Key Generation Relying on Wireless Channels

et al. 2020

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The Internet of Things (IoT) is a transformative technology, which is revolutionizing our everyday life by connecting everyone and everything together. The massive number of devices are preferably connected wirelessly because of the easy installment and flexible deployment. However, the broadcast nature of the wireless medium makes the information accessible to everyone including malicious users, which should hence be protected by encryption. Unfortunately, the secure and efficient provision of cryptographic keys for low-cost IoT devices is challenging; weak keys have resulted in severe security breaches, as evidenced by numerous notorious cyberattacks. This paper provides a comprehensive survey of lightweight security solutions conceived for IoT, relying on key generation from wireless channels. We first introduce the key generation fundamentals and protocols. We then examine how to apply this emerging technique to secure IoT and demonstrate that key generation relying on the randomness of wireless channels is eminently suitable for IoT. This paper reviews the extensive research efforts in the areas of theoretical modelling, simulation based validation and experimental exploration. We finally discuss the hurdles and challenges that key generation is facing and suggest future work to make key generation a reliable and secure solution to safeguard the IoT.

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Section: ) Star Topologymentioning

confidence: 99%

A New Frontier for IoT Security Emerging From Three Decades of Key Generation Relying on Wireless Channels

et al. 2020

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“…The above mainly described the key establishment process between two nodes. In fact, these scenarios where a single user needs to establish keys with multiple users are quite common, e.g., roadside units (RSUs) with vehicles [25]. Alhasanat et al [26] proposed a novel physical layer key distribution mechanism for IoT networks.…”

Section: Related Workmentioning

confidence: 99%

Efficient physical layer key generation technique in wireless communications

Lin

Fang

et al. 2020

J Wireless Com Network

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Wireless communications between two devices can be protected by secret keys. However, existing key generation schemes suffer from the high bit disagreement rate and low bit generation rate. In this paper, we propose an efficient physical layer key generation scheme by exploring the Received Signal Strength (RSS) of signals. In order to reduce the high mismatch rate of the measurements and to increase the key generation rate, a pair of transmitter and receiver separately apply adaptive quantization algorithm for quantifying the measurements. Then, we implement a randomness extractor to further increase key generation rate and ensure randomness of generated of keys. Several real-world experiments are implemented to verify the effectiveness of the proposed scheme. The results show that compared with the other related schemes, our scheme performs better in bit generation rate, bit disagreement rate, and randomness.

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“…• Co-located Attacks: The correlation of channel measurements is determined by the distance between the eavesdropper and Alice/Bob. In the existing works [3], [4], if the eavesdropper is co-located to Alice or Bob, he/she will observe channel measurements that are highly correlated with Alice or Bob. Therefore, most existing works are vulnerable to co-located eavesdroppers.…”

Section: B Limitations In Existing Schemesmentioning

confidence: 99%

“…That is, the secrecy of the generated key is not dependent on the hardness of a computational problem but relies on the physical laws of the wireless fading channels. For instance, wireless devices measure highly correlated wireless channel characteristics and use them as shared random sources to generate a shared key [3]. In theory, in a rich multi-path scattering environment, a passive eavesdropper who is more than a half-wavelength away from legitimate users will obtain un-correlated channel measurements, thus cannot infer much information about the generated key.…”

Section: Introductionmentioning

confidence: 99%

Physical Layer Key Generation in 5G Wireless Networks

Jiao

Wang

et al. 2019

IEEE Wireless Commun.

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The bloom of the fifth generation (5G) communication and beyond serves as a catalyst for physical layer key generation techniques. In 5G communications systems, many challenges in traditional physical layer key generation schemes, such as co-located eavesdroppers, the high bit disagreement ratio, and high temporal correlation, could be overcome. This paper lists the key-enabler techniques in 5G wireless networks, which offer opportunities to address existing issues in physical layer key generation. We survey the existing key generation methods and introduce possible solutions for the existing issues. The new solutions include applying the high signal directionality in beamforming to resist co-located eavesdroppers, utilizing the sparsity of millimeter wave (mmWave) channel to achieve a low bit disagreement ratio under low signal-to-noise-ratio (SNR), and exploiting hybrid precoding to reduce the temporal correlation among measured samples. Finally, the future trends of physical layer key generation in 5G and beyond communications are discussed.This work has been accepted by the IEEE Wireless Communications Magazine.

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Delay Analysis of Physical-Layer Key Generation in Dynamic Roadside-to-Vehicle Networks

Cited by 24 publications

References 22 publications

A New Frontier for IoT Security Emerging From Three Decades of Key Generation Relying on Wireless Channels

A New Frontier for IoT Security Emerging From Three Decades of Key Generation Relying on Wireless Channels

Efficient physical layer key generation technique in wireless communications

Physical Layer Key Generation in 5G Wireless Networks

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