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Physical layer secret key generation scheme used in 60 GHz band

Physical layer secret key generation scheme used in 60 GHz band
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摘要 The technology of 60 GHz radio is considered promising for providing fast connectivity and gigabit data rate. One of the main challenges to its secure indoor transmission is how to generate secret keys between communication devices. To investigate this issue, The authors develop an efficient mechanism of secret key generation exploiting multipath relative delay based on 60 GHz standard channel models. The comparison of key-mismatch probability between line-of-sight （LOS） and non-line-of-sight （NLOS） environments is considered. Verification of the proposed scheme is conducted. Simulation shows that the number of extracted multipath components proportionally did affect key generation rate and key-mismatch probability. It also indicates that communicating transceivers have a slightly lower key-mismatch probability in NLOS condition than in LOS condition. Moreover, in comparison to the existing approach of using received signal amplitude as a common random source, the mechanism can achieve better performance in key agreement. The technology of 60 GHz radio is considered promising for providing fast connectivity and gigabit data rate. One of the main challenges to its secure indoor transmission is how to generate secret keys between communication devices. To investigate this issue, The authors develop an efficient mechanism of secret key generation exploiting multipath relative delay based on 60 GHz standard channel models. The comparison of key-mismatch probability between line-of-sight （LOS） and non-line-of-sight （NLOS） environments is considered. Verification of the proposed scheme is conducted. Simulation shows that the number of extracted multipath components proportionally did affect key generation rate and key-mismatch probability. It also indicates that communicating transceivers have a slightly lower key-mismatch probability in NLOS condition than in LOS condition. Moreover, in comparison to the existing approach of using received signal amplitude as a common random source, the mechanism can achieve better performance in key agreement.
作者 HUANG Jing-jing JIANG Ting
机构地区 Key Laboratory of Universal Wireless Communication
出处 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2014年第5期76-82,共7页 中国邮电高校学报（英文版）
基金 supported by National Natural Science Foundation of China (61171176)
关键词 60 GHz secret key generation RECIPROCITY multipath relative delay 60 GHz, secret key generation, reciprocity, multipath relative delay
分类号 TN918.4 [电子电信—通信与信息系统]
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The Journal of China Universities of Posts and Telecommunications
2014年 第5期

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