通信学报 ›› 2016, Vol. 37 ›› Issue (Z1): 140-146.doi: 10.11959/j.issn.1000-436x.2016260

• 学术论文 • 上一篇    下一篇

面向云端群组数据的轻量级完整性验证方案

刘云飞1,王勇军1,付绍静1,2   

  1. 1 国防科技大学计算机学院,湖南 长沙 410073
    2 密码科学技术国家重点实验室,北京100878
  • 出版日期:2016-10-25 发布日期:2017-01-17
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;密码科学技术国家重点实验室开放课题基金资助项目;湖南省创新平台开放基金资助项目

Lightweight integrity verification scheme for cloud based group data

Yun-fei LIU1,Yong-jun WANG1,UShao-jing F1,2   

  1. 1 College of Computer,National University of Defense Technology,Changsha 410073,China
    2 Sate Key Laboratory of Cryptology,Beijing 100878,China
  • Online:2016-10-25 Published:2017-01-17
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The Open Foundation of State Key Laboratory of Cryptology;The Open Fund Project of Innovation Platform for Universities in Hunan Prov-ince

摘要:

为保护群组用户存储在云中的数据安全,设计了一个可以保护群组用户隐私的数据完整性验证方案。该方案可以高效地检测存储在云中的群组共享数据,并支持数据的动态更新,利用环签名的特性来隐藏数据块所对应的签名者的身份。也就是说,第三方验证者无法在验证时窥探到用户身份等隐私信息。通过使用聚合的方法生成数据标签,减少了标签的存储开销,同时支持群组数据的动态操作,使群组中的用户可以轻松的修改云中的群组数据。

关键词: 云存储, 数据完整性, 身份隐私, 聚合标签

Abstract:

In order to protect the security of the data stored in the cloud by group users,a data integrity verification scheme was designed which can protect the privacy of the group users.The scheme can efficiently detect the shared data in the cloud and support the dynamic updating of the data,and use the characteristic of the ring signature to hide the iden-tity of the signer corresponding to the data block.That is,the third-party verifier can not spy on the users identity and other private information when validating.The aggregated approach is used to generate data labels,which reduces the storage cost of labels and supports the dynamic operation of group data,so that the users in the group can easily modify the cloud group data.

Key words: cloud storage, data integrity, identity privacy, data integrity

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