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:2019,28(6):22-28
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认知无线网络中的轻量级物理层辅助认证
(1.福建师范大学 数学与信息学院, 福州 350117;2.福建师范大学 福建省网络安全与密码技术重点实验室, 福州 350007)
Lightweight Physical Layer-Assisted Authentication Scheme in Cognitive Wireless Networks
(1.College of Mathematics and Informatics, Fujian Normal University, Fuzhou 350117, China;2.Fujian Provincial Key Lab of Network Security & Cryptology, Fujian Normal University, Fuzhou 350007, China)
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投稿时间:2018-11-16    修订日期:2018-12-10
中文摘要: 由于无线信道的开放性和无线传输的广播特性,认知无线网络很容易遭受消息篡改、伪造、窃听以及拒绝服务等攻击.为了抵抗这些攻击,研究人员提出了许多物理层认证技术.相比于传统的密码学认证机制,物理层认证技术更快速、更高效.因此非常适用于对认知无线网络中资源受限的终端进行连续、实时的认证.但现有的物理层认证技术无法实现初始认证,而且在认证过程中丢包事件时常发生,导致认证时延较长,认证效率较低.本文将传统密码学认证技术与物理层认证技术相结合,提出一种轻量级的跨层认证方案.该方案只在初次认证采用密码学技术,其余认证采用快速高效的物理层认证技术,提高了认证效率.本文方案采用改进的归一化统计量,使得门限的计算变得更为简单,有效地降低了计算复杂度,减少了用户的认证等待时延.此外,本文采用了基于哈希链的认证方法,保证了在丢包情况下仍能实现连续的认证.性能分析表明,与现有的方案相比,本文的方案在提高认证效率方面具有较大的优势.
Abstract:Cognitive wireless networks are vulnerable to message tampering, forgery, eavesdropping, and denial of service attacks due to the openness of wireless channels and the broadcasting characteristics of wireless transmission. In order to resist these attacks, researchers have proposed many physical layer authentication technologies. Compared with traditional cryptographic authentication mechanism, physical layer authentication technology is faster and more efficient, so it is very suitable for continuous and real-time authentication of resource-constrained terminals in cognitive wireless networks. However, the existing physical layer authentication technology can not achieve the initial authentication, and packet loss events often occur in the authentication process, resulting in long authentication delay and low authentication efficiency. This study combines traditional cryptographic authentication technology with physical layer authentication technology, and proposes a lightweight cross-layer authentication scheme. The scheme only uses cryptography technology in the initial authentication, while the other authentication uses fast and efficient physical layer authentication technology, which improves the authentication efficiency. In this scheme, an improved normalized statistic is used, which makes the calculation of threshold simpler, reduces the computational complexity effectively and reduces the user authentication waiting delay. In addition, the Hash chain-based authentication method is adopted to ensure that continuous authentication can still be achieved in case of packet loss. Performance analysis shows that, compared with existing schemes, the scheme in this study has greater advantages in improving authentication efficiency.
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基金项目:国家自然科学基金面上项目(61771140);国家自然科学基金海峡联合基金重点项目(U1405255);福州市科技重大项目(榕科(2017)325号);福建省科技厅高校产学研项目(2017H6005)
引用文本:
颜胜男,许力,曾雅丽.认知无线网络中的轻量级物理层辅助认证.计算机系统应用,2019,28(6):22-28
YAN Sheng-Nan,XU Li,ZENG Ya-Li.Lightweight Physical Layer-Assisted Authentication Scheme in Cognitive Wireless Networks.COMPUTER SYSTEMS APPLICATIONS,2019,28(6):22-28

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