基于云数据加密中多关键字的分类查询

摘要

The birth of cloud computing creates a universal plat form that can store and extract anything at anytime.It means that all sensitive information must be encrypted ago the storage for applying this technology,in order to over come the possible security problems,the key is to query the encrypt data.The exsiting systems only support the precise key words query,which is very difficult to query effectively.Mutiple key words classification provides an effective mechanism for querying the cloud encryyption data efficiently;at the same time,it also ensures the key words privacy and the users possible input spelling errors or keyboard input errors.This paper presents the multiple key words query,the query results are a set of documents to be classified according to the key words of the input sequence and appropriate standards.%云计算的诞生创造了一个随时随地都能把任何东西存储并提取出来的通用平台.应用这项技术意味着所有的敏感信息都必须在存储前进行加密,以此来克服可能存在的安全问题,那么此问题的关键是对加密数据的查询.现有的系统只支持精确关键字的查询,这样一来要想得到有效的查询就变得非常困难.多关键字的分类查询提供了一个有效的机制来对云中加密数据进行查询,与此同时还保证了关键字的私密性和用户输入时可能出现的拼写错误或键盘输入错误.文中提出的多关键字查询,查询结果是以关键字的输入序列和适当标准进行分类的一组文件.