Achieving efficient dynamic cryptographic access control in cloud storage

HONG Cheng; ZHANG Min; FENG Deng-guo

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Achieving efficient dynamic cryptographic access control in cloud storage

更新时间：2024-10-14

- Achieving efficient dynamic cryptographic access control in cloud storage
- Vol. 32, Issue 7, Pages: 125-132(2011)
- 作者机构：
  
  中国科学院软件研究所信息安全国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP333
- Published：2011
- 稿件说明：
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HONG Cheng, ZHANG Min, FENG Deng-guo. Achieving efficient dynamic cryptographic access control in cloud storage[J]. 2011, 32(7): 125-132.
DOI：

HONG Cheng, ZHANG Min, FENG Deng-guo. Achieving efficient dynamic cryptographic access control in cloud storage[J]. 2011, 32(7): 125-132. DOI：

摘要

针对云存储中敏感数据的机密性保护问题

在基于属性的加密基础上提出了一种密文访问控制方法HCRE。其思想是设计一种基于秘密共享方案的算法

将访问控制策略变更导致的重加密过程转移到云端执行

从而降低权限管理的复杂度

实现高效的动态密文访问控制。实验分析表明HCRE显著降低了权限管理的时间代价

而且没有向云端泄露额外的信息

保持了数据机密性。

Abstract

To keep the data in the cloud confidential against unauthorized parties

a cryptographic access control solution called hybrid cloud re-encryption（HCRE） based on attribute-based encryption（ABE） was introduced.HCRE designed a secret sharing scheme to delegate the task of ABE re-encryption to the cloud service provider（CSP）

which alleviates the administering burdens on the data owner.Experiments show that HCRE can handle dynamic access policies in a more ef-ficient way.Additionally

HCRE does not reveal extra information of the plaintext to the CSP

thus it does no harm to the data confidentiality.

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Related Institution

College of Cyber Science, Nankai University

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