电信科学 ›› 2012, Vol. 28 ›› Issue (9): 15-21.doi: 10.11959/j.issn.1000-0801.2012.09.003

• 云计算专栏 • 上一篇    下一篇

一种新的满足隐私性的云存储公共审计方案

王少辉1,2,3,陈丹伟1,2,王志伟1,2,常素琴1,2   

  1. 1 南京邮电大学计算机学院 南京210003
    2 江苏省无线传感网高技术研究重点实验室 南京210003
    3 网络与数据安全四川省重点实验室 成都610054
  • 出版日期:2012-09-15 发布日期:2017-06-14
  • 基金资助:
    国家自然科学基金资助项目;南京邮电大学基金资助项目

A New Solution of Privacy-Preserving Public Auditing Scheme for Cloud Storage Security

Shaohui Wang1,2,3,Danwei Chen1,2,Zhiwei Wang1,2,Suqin Chang1,2   

  1. 1 College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
    2 Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China
    3 Network and Data Security Key Laboratory of Sichuan Province, Chengdu 610054, China
  • Online:2012-09-15 Published:2017-06-14

摘要:

在云存储网络环境中,数据的安全性、完整性和隐私性是用户最关心的问题之一。云存储服务中,用户将存储的数据和认证标识信息存储在云服务器中。为了保证存储数据的完整性,云存储服务提供者需要向用户或第三方审计者证明其正确地持有用户存储的数据。公共审计是指由用户以外的第三方代替用户完成审计工作,这对于计算资源比较有限的用户尤其重要。目前多数云存储审计方案没有考虑隐私性问题。本文提出了一种新的可聚合基于签名的广播加密(ASBB)方案,并在此基础上设计了新的满足隐私性的云存储公共审计方案。新方案在随机预言模型下是可证安全的,并且在计算开销方面更具有优势。

关键词: 云计算, 云存储, 公共审计, 隐私性, 完整性

Abstract:

When user stores their data in the cloud storage, they most concern about whether the data is complete, privacy and unchanged. To ensure the availability and integrity of usersˊ stored data, cloud server must prove a verifier that it is actually storing all of a clientˊs data unchanged. And, enabling public auditability for cloud storage is of critical importance to users with constrained computing resources, who can resort to a third party auditor to check the integrity of outsourced data. However, most of the existing auditing schemes do not consider data privacy problem. In this paper, after giving a new construction of a recently proposed primitive named aggregatable signature based broadcast encryption scheme, we present an efficient public auditing scheme with privacy property. The new scheme is secure in the random oracle model and has less computation cost than existing auditing scheme with privacy property.

Key words: cloud computing, cloud storage, public auditing, privacy, integrity

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