东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (4): 461-466.DOI: 10.12068/j.issn.1005-3026.2019.04.002

• 信息与控制 • 上一篇    下一篇

基于后缀树的基因数据可搜索加密方法

秦诗悦1, 周福才2, 柳璐2   

  1. (1. 东北大学 计算机科学与工程学院, 辽宁 沈阳110169; 2. 东北大学 软件学院, 辽宁 沈阳110169)
  • 收稿日期:2018-02-28 修回日期:2018-02-28 出版日期:2019-04-15 发布日期:2019-04-26
  • 通讯作者: 秦诗悦
  • 作者简介:秦诗悦(1994-),女,辽宁沈阳人,东北大学博士研究生; 周福才(1964-),男,吉林长春人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(61772127,61872069); 中央高校基本科研业务费专项资金资助项目(N151704002).

Searchable Encryption Scheme of Genomic Data Based on Suffix Tree

QIN Shi-yue1, ZHOU Fu-cai2, LIU Lu2   

  1. 1. School of Computer Science & Engineering, Northeastern University, Shenyang 110169, China; 2. School of Software, Northeastern University, Shenyang 110169, China.
  • Received:2018-02-28 Revised:2018-02-28 Online:2019-04-15 Published:2019-04-26
  • Contact: ZHOU Fu-cai
  • About author:-
  • Supported by:
    -

摘要: 为保障用户免遭侵犯隐私的风险,提出了一种特别支持基因数据的可搜索加密方法.针对目前密文搜索方案大多数仅支持通过关键字进行搜索,而无法用于不含关键字的基因数据的问题,利用后缀树和伪随机函数等密码学原语构建安全索引,实现对密文基因数据的任意子字符串搜索.安全性证明该方法满足动态自适应安全,利用理论分析和真实数据对效率进行测评.该方法可以对基因数据进行高效安全的任意子字符串搜索,保护数据完整性和隐私性,在个性化医疗大众化的环境下具备广阔的应用前景.

关键词: 基因数据, 后缀树, 可搜索加密, 子字符串搜索, 现代医疗

Abstract: A searchable encryption scheme that specifically supports genetic data was proposed to protect users from privacy risks. The existing searchable encryption schemes only support keywords search, they cannot be applied to genetic data without keywords. So, a security index using cryptographic primitives such as suffix trees and pseudo-random functions was constructed to implement arbitrary substring searches for ciphertext genomic data. The safety proof indicated that the method satisfies the dynamic adaptive security, and the efficiency is evaluated by both theoretical analysis and real data. This scheme can perform efficient and safe arbitrary substring search on genomic data,protect data integrity and privacy and has broad application prospects in the environment of personalized medical popularization.

Key words: genomic data, suffix tree, searchable encryption, substring search, modern medicine

中图分类号: