Information-Theoretic Secure Key Sharing for Wide-Area Mobile Applications

Li, Guyue; Luo, Honghai; Yu, Jongmin; Hu, Aiqun; Wang, Jiangzhou

doi:10.1109/mwc.012.2200289

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…To address the aforementioned challenges, this paper proposes a coding scheme built upon error correction coding, aiming to increase the eavesdropper's decoding error rate and enhance key security. Literature indicates a substantial difference between eavesdropping and legitimate channels, with the average inconsistency rate for keys generated by legitimate channels being around 8%, while for keys generated by eavesdroppers, it is approximately 40% [4]. Leveraging this significant difference between eavesdropping and legitimate channels, this paper introduces a scheme based on polar codes [5].…”

Section: Introductionmentioning

confidence: 99%

A coding scheme to force the eavesdropper falling in error avalanche

Zhao,

Hu,

2024

Electronics Letters

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In recent years, key generation schemes based on the reciprocity of wireless channels have gained widespread attention in the field of wireless physical layer security. However, due to the openness of wireless channels, eavesdroppers may obtain partial legitimate keys by eavesdropping on the wireless channel. To address this issue, this paper proposes a wireless channel coding scheme that induces an “avalanche” of errors for eavesdroppers, which could maximize eavesdropper's bit error rate. The design of this scheme is based on the significant differences between the eavesdropping channel and the legitimate channel, and the average bit key disagreement ratio of the keys generated by the legitimate channel is around 8%. The scheme selects polar codes with strong error correction capabilities and chooses a coding rate matching the error level of the legitimate channel, forcing the eavesdropping channel's error rate into an “avalanche” state, where the error rate approaches 50%. This paper presents the structure of the encoder and determines the coding rate through simulation. Simulation results demonstrate that this scheme can significantly degrade the error rate of the eavesdropping channel while ensuring the prevention of eavesdroppers from obtaining secret information transmitted through the legitimate channel.

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Section: Introductionmentioning

confidence: 99%

A coding scheme to force the eavesdropper falling in error avalanche

Zhao,

Hu,

2024

Electronics Letters

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Securing NextG networks with physical-layer key generation: A survey

Xiao¹,

Zhao²,

Feng³

et al. 2023

Security and Safety

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As the development of next-generation (NextG) communication networks continues, tremendous devices are accessing the network and the amount of information is exploding. However, with the increase of sensitive data that requires confidentiality to be transmitted and stored in the network, wireless network security risks are further amplified. Physical-layer key generation (PKG) has received extensive attention in security research due to its solid information-theoretic security proof, ease of implementation, and low cost. Nevertheless, the applications of PKG in the NextG networks are still in the preliminary exploration stage. Therefore, we survey existing research and discuss (1) the performance advantages of PKG compared to cryptography schemes, (2) the principles and processes of PKG, as well as research progresses in previous network environments, and (3) new application scenarios and development potential for PKG in NextG communication networks, particularly analyzing the effect and prospects of PKG in massive multiple-input multiple-output (MIMO), reconfigurable intelligent surfaces (RISs), artificial intelligence (AI) enabled networks, integrated space-air-ground network, and quantum communication. Moreover, we summarize open issues and provide new insights into the development trends of PKG in NextG networks.

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