通信学报 ›› 2017, Vol. 38 ›› Issue (8): 79-93.doi: 10.11959/j.issn.1000-436x.2017166

• 学术论文 • 上一篇    下一篇

高效可扩展的对称密文检索架构

吴志强1,李肯立1,郑蕙2()   

  1. 1 湖南大学信息科学与工程学院,湖南 长沙 410082
    2 湖南商学院旅游管理学院,湖南 长沙 410205
  • 修回日期:2017-05-13 出版日期:2017-08-01 发布日期:2017-09-07
  • 作者简介:吴志强(1977-),男,湖南涟源人,湖南大学博士生,主要研究方向为网络安全、并行计算。|李肯立(1971-),男,湖南娄底人,湖南大学教授、博士生导师,主要研究方向为并行计算、网格计算和DNA计算等。|郑蕙(1978-),女,湖南长沙人,湖南商学院讲师,主要研究方向为大数据安全、旅游电子商务。
  • 基金资助:
    国家自然科学基金资助项目(61672221)

Efficient and scalable architecture for searchable symmetric encryption

Zhi-qiang WU1,Ken-li LI1,Hui ZHENG2()   

  1. 1 College of Information Science and Engineering,Hunan University,Changsha 410082,China
    2 School of Tourism Management,Hunan University of Commerce,Changsha 410205,China
  • Revised:2017-05-13 Online:2017-08-01 Published:2017-09-07
  • Supported by:
    The Nationa1 Natura1 Science Foundation of China(61672221)

摘要:

现有可搜索加密方案通常索引的构建、检索效率不高,数据节点的维护不便,难以适应分布式密文检索要求。针对现有密文检索方案出现的一些问题,提出了可拆分密文倒排索引架构,改善了密文索引的并行构建性能,简化了数据增删维护过程,增强了与传动 NoSQL 系统的兼容性。采用检索结果集中化倒排索引方法,提高分布式密文检索系统检索效率。所提方案满足被广泛采用的选择关键词攻击下的不可区分性(IND-CKA)安全标准。结合 Cassandra 对多种性能进行了验证,实验数据表明,本架构对分布式、海量密文数据环境具有很好的适用性。

关键词: 可搜索加密, 倒排索引, Cassandra, 隐私保护

Abstract:

The existing encryption schemes were usua11y poor of index construction and maintenance,which was difficu1t to meet the retrieva1 requirements for distributed ciphertext.Aiming at the above shortage of existing schemes,a structure of separab1e ciphertext inverted index was proposed for improving the performance of para11e1 constructing cryptograph index,simp1ifying the data maintenance process,and increasing the compatibi1ity with the traditiona1 NoSQL system.The method of centra1ized inverted index was adopted to improve the retrieva1 efficiency of distributed retrieva1 system.Then,the proposed scheme was proved to meet the wide1y adopted IND-CKA security standard.Fina11y,Cassandra was combined to eva1uate the severa1 performance parameters,and the experimenta1 resu1ts show proposed architecture has good app1icabi1ity to the distributed and massive encrypted data environment.

Key words: searchab1e encryption, inverted index, Cassandra, privacy preserving

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