【摘要】 在动态无线信道中,通信双方测得的接收信号强度(RSS)的变化特性具有较高相似性,而处于距通信双方一个载波波长范围外的攻击者则不能测得与通信双方相似的RSS变化特性。基于无线信道这一特性,本文提出了在动态无线信道中提取特征信息的方法,并结合Fuzzy Vault算法提出在移动环境下有效的无线终端密钥安全协商机制,从而保证信息的安全传输。更多还原

【Abstract】 The characteristics of RSS were similar between two communication wireless devices on the dynamic wireless channel, whereas the characteristics of RSS varied from the former devices to an eavesdropper that located outside a distance greater than about one radio wavelength. Based on the properties, the method of feature extraction on the dynamic wireless channel was presented in the paper, and a reliable key agreement mechanism with Fuzzy Vault Algorithm was proposed to ensure the security of information transmission.更多还原