无线局域网内敏感信息安全检索仿真

针对传统方法对无线局域网内敏感信息进行检索时,存在检索安全性较差的问题,提出一种新的无线局域网内敏感信息安全检索方法。设计由信息拥有者、信息查询者、云服务器以及三方管理机构构成的多用户系统。在无线局域网环境下下形成私钥与公钥,令网络信息拥有者从含大量文件的信息集中对敏感信息集合进行提取,由网络文件向量组成可搜索索引,从而完成多个敏感信息的自动加密,采用模糊加密算法将加密的敏感信息集合与安全的索引传输至云服务器端完成信息检索。实验结果表明,与传统方法相比,所提方法不仅有较强的抗关键字猜测攻击性能,而且计算代价小,检索安全性较高。

Simulation of Sensitive Information Security Retrieval in WLAN

When traditional methods were used to retrieve sensitive information in WLAN,the security of retrieval was poor.Therefore,this paper puts forward a method for retrieving sensitive information in WLAN.Firstly,a multi-user system consisting of information owner,information inquirer,cloud server and third-party management organi-zation was designed.In the wireless LAN environment,private key and public key were formed,so that the network information owner extracted the sensitive information set from the information set containing a large number of files.The searchable index was formed by network file vectors,thus to complete the automatic encryption of multiple sensi-tive information.Finally,fuzzy encryption algorithm was used to transfer the encrypted sensitive information set and security index to the cloud server side.Thus,the information retrieval was finished.Simulation results show that,compared with traditional methods,the proposed method not only has stronger performance of resisting keyword guess-ing attack,but also has lower computational cost and higher retrieval security.