基于相位响应独立性的衰落信道加密方法  

Encryption scheme over fading channels based on independency of phase response

作　　者：夏路[1] 黄开枝[1] 戴峤 

机构地区：[1]国家数字交换系统工程技术研究中心 [2]解放军61486部队

出　　处：《计算机应用研究》2014年第11期3469-3472,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(61379006)

摘　　要：现有的密钥加密方法无法保证密钥分发的安全性。针对上述问题,提出了一种基于信道相位响应独立性的衰落信道加密方法。通过将发送方和窃听方之间的信道化为两个信道的级联计算得出密钥各态历经的安全容量,在此基础上,对离散PSK信源加密的参数进行了讨论,最终实现信息的加密。仿真结果表明,当合法接收方的接收信号相位估计误差为0.001时,误码率会迅速上升为0.5。The key encryption methods can’t guarantee the key distribution security.To overcome the above limitations,this paper proposed an encryption scheme over fading channels based on independency of channel phase response.Firstly,the pa-per divided the channel between the sender and the eavesdropper into the cascade of the two channeld,and calculated the key security capacity.Secondly,the paper discussed the discrete source PSK encryption parameters.Finally,the legitimate users could guarantee the system security.Simulation results show that,the error rate is rapidly increased to 0.5 with the estimation error of the received signal phase is 0.001 .

关 键 词：相位响应 衰落信道 密钥生成 密钥容量 

分 类 号：TN915.08[电子电信—通信与信息系统]