使用无线通信物理层属性的安全配对

Jani Suomalainen, Antti Evesti, A. Kotelba
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引用次数: 0

摘要

物理通信层的新安全解决方案——从无线电信道中提取秘密密钥和信息论保密——保护了通信的机密性,而无需加密建立秘密密钥。不幸的是,它们目前缺乏身份验证。仍然需要加密机制来保护以前未知设备之间的第一次接触,以保证按照用户的意愿进行安全配对。在本文中,我们通过分析如何实现五种不同的安全配对方法或与物理层解决方案相补充来做出贡献。我们提出了新的解决方案,用密钥提取取代昂贵的加密算法。我们注意到,如果没有加密身份验证,信息理论保密解决方案的生存能力较差。然而,在一些信息论保密方法中,信道状态信息的安全带外传递可以对接收方进行身份验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Security pairings using physical layer properties of wireless communications
New security solutions in the physical communication layer - secret key extraction from the radio channel and information-theoretic secrecy - protect confidentiality of communication without cryptographic establishment of secret keys. Unfortunately, they currently lack authentication. Cryptographic mechanisms are still needed to secure the first contact between previously unknown devices - to guarantee that security pairings are made as the user intends. In this paper, we contribute by analyzing how five different security pairing approaches can be realized or complemented with physical layer solutions. We propose new solutions for replacing the use of expensive crypto algorithms with secret key extraction. We note that information-theoretic secrecy solutions are less capable of surviving without cryptographic authentication. However, in some information-theoretic secrecy approaches, secure out-of-band delivery of channel state information can authenticate receivers.
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