基于时释性和多维虚置换的代理重加密方案

Proxy re⁃encryption scheme based on timed⁃release and multi⁃dimensional virtual permutation

信息技术的发展推动了数字化信息的应用,数据信息安全的问题也接踵而至,传统的代理重加密方案虽然可以解决数据安全共享的问题,但是不能解决数据共享的效率低和没有时效性的问题。因此提出了一种多用户数据信息共享的代理重加密方案,利用时释性、多维虚置换和代理重加密的结合实现用户之间的信息共享,数据请求者无法在指定时间之前获得关于数据的信息。通过安全性分析和性能评估,表明具有安全性能高、计算开销少的优点。

The development of information technology has promoted the application of digital information,and the problem of data information security has followed.Although the traditional proxy re­encryption scheme can solve the problem of secure data sharing,it cannot solve the problem of low efficiency and timeliness of data sharing.Therefore,a proxy re­encryption scheme for multi­user data information sharing is proposed,using a combination of timed­release,multi­dimensional virtual permutation and proxy re­encryption to achieve information sharing between users,where the data requestor cannot obtain information about the data before a specified time.The security analysis and performance evaluation show that it has the advantages of high security and low computing cost.