摘要
无线信道具有互易性(Reciprocity)、时变(Temporal Variations)特性和空变(Spatial Variations)特性,这些特性为通信双方从无线信道中提取安全的共享密钥提供了可能,有效的密钥提取机制能够显著地提高密钥提取速率。在过去的30多年中,无线信道密钥提取经历了从仅限于理论到实际信道密钥提取的发展过程。文中从信道参数选取、量化技术、信息协商技术、秘密增强技术等角度对基于无线信道特性的密钥提取体制的研究现状、分类比较、发展趋势进行了全面概述。
Wireless channel enjoys the properties of reciprocity, temporal variations and spatial variations. These properties enable the legitimate partners to share secret key from the wireless channel. And effective secret-key extraction system could remarkably improve the key extraction rates. In the past three decades, the secret-key extraction technique has experienced the development process from theory study to practical experiments in real channel. From the aspects of channel-parameter choice, quantization, information negotiation and privacy enhancement techniques, this paper provides a comprehensive overview on current status, classified comparison and development trend of secret-key extraction techniques based on wireless channel characteristics.
出处
《通信技术》
2014年第12期1434-1438,共5页
Communications Technology
基金
国家863计划(No.2009AA011205)
国家863计划(No.2013AA013603)~~
关键词
密钥提取
综述
信道参数选择
量化技术
信息协商技术
秘密增强技术
secret-key extraction
summary
channel-parameter choice
quantization technique
informationnegotiation technique
privacy enhancement technique
