Lightweight Group Secret Key Generation Leveraging Non-Reconciled Received Signal Strength in Mobile Wireless Networks

Guyue Li, Liangjun Hu, A. Hu
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引用次数: 8

Abstract

Physical-layer secret key generation (PSKG) leveraging reciprocal wireless channel has been widely studied in pairwise communication scenarios as it addresses the key distribution problem in traditional security mechanisms. However, PSKG encounters the challenges of low key agreement, information leakage and high system cost when it is extended to produce a secret key for a group of users. In this paper, we propose a lightweight Group secret key generation approach leveraging Non-reconciled received Signal Strength (GNSS). Specifically, pairwise bit sequences with high similarity are firstly extracted and then a group key is securely shared with the protection of these pairwise bit sequences, which prevents the information leakage and sophisticated information reconciliation. Detailed algorithms of GNSS for star and chain networks are presented. Numerical and experimental results demonstrate that GNSS can provide high key agreement, thus enabling key generation technology to be used in a group communication scenario.
在移动无线网络中利用非调和接收信号强度的轻量级组密钥生成
利用对等无线信道的物理层密钥生成(PSKG)解决了传统安全机制中的密钥分发问题,在对偶通信场景中得到了广泛的研究。但是,当PSKG扩展到为一组用户生成密钥时,会遇到密钥一致性低、信息泄露和系统成本高的挑战。在本文中,我们提出了一种利用非调和接收信号强度(GNSS)的轻量级组密钥生成方法。该方法首先提取相似度较高的对位序列,然后在对这些对位序列的保护下安全地共享组密钥,避免了信息泄露和复杂的信息协调。给出了星型和链式网络GNSS的具体算法。数值和实验结果表明,GNSS能够提供高密钥一致性,从而使密钥生成技术能够用于群通信场景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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