基于云计算的可查询加密研究综述

A Survey of Searchable Encryption Based on Cloud Computing

随着云计算时代的到来,吸引着人们将复杂的数据管理外包给云服务器端.在以更经济、更灵活方式管理数据的同时,个人隐私和数据安全问题一直令人担忧.加密是一种常用的维护数据隐私的方法,但它不支持有效的数据操作.可查询加密技术通过加密保证数据的安全性,同时也支持在密文上的某些计算,在一定程度上解决了云计算环境中的隐私保护和数据可用性问题.本文结合可查询加密的4种应用场景,对可查询加密的关键技术和安全问题进行了分析,并对已有的方案做了分类对比,指出了该领域面临的挑战和未来的研究方向.

With the advent of cloud computing, people are inspired to outsource their data management to the cloud server. While it is a more economical and more flexible way to manage data,privacy security issue has been worrisome. Encryption is a common method for maintaining data privacy, but it does not support efficient data manipulation. Searchable encryption （ SE ） ensures the security of data by encryption and also supports some computation on the ciphertext. To a certain extent,it solves the privacy protection and data availability in cloud computing environment. With four scenarios, this paper analyzes the main technologies and security problems for searchable encryption. Then classification and comparison on existing schemes are given. At last,the suggestions for future research are put forward.