适合移动云存储的基于属性的关键词搜索加密方案

发布时间：2018-03-29 14:51

本文选题：移动云存储　切入点：可搜索加密　出处：《计算机研究与发展》2017年10期

【摘要】：近年来,随着移动设备性能的不断提升和移动互联网的迅猛发展,越来越多的移动终端参与云端数据存储与共享.为了更好地解决资源受限的移动设备参与云端数据共享的安全和效率问题,基于支持通配符的与门访问结构,提出了一种高效的基于属性的关键词搜索加密方案,并证明了其在标准模型下满足选择关键词明文攻击的不可区分安全性和关键词安全性.该方案采用韦达定理使得每个属性仅需用一个元素表示,方案中索引长度固定,陷门和密钥的长度及陷门算法和搜索算法的计算复杂度与访问结构中可使用的通配符数量上限成正比,同时,移除了索引和陷门传输过程中的安全信道,进一步降低了开销.效率分析表明:与其他方案相比,该方案的计算开销和通信开销较小,更加适用于移动云存储环境.
[Abstract]:In recent years, with the continuous improvement of mobile device performance and the rapid development of mobile Internet, More and more mobile terminals participate in cloud data storage and sharing. An efficient keyword search encryption scheme based on attributes is proposed. It is proved that the indiscernible security and keyword security of selecting keyword plaintext attack are satisfied in the standard model. In this scheme, only one element is required for each attribute, and the index length in the scheme is fixed. The length of trapdoor and key and the computational complexity of trapping algorithm and search algorithm are proportional to the upper limit of the number of wildcards available in the access structure, and the secure channel in the transmission process of index and trapping is removed. The efficiency analysis shows that compared with other schemes, the computational overhead and communication overhead of this scheme are smaller and more suitable for mobile cloud storage environment.
【作者单位】：解放军信息工程大学;
【基金】：国家重点研发计划项目(2016YFB0501900)~~
【分类号】：TP309.7;TP333

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