期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2014
卷号：15
期号：2
页码：74-77
出版社：Seventh Sense Research Group
摘要：The purpose of Cloud Computing is a long dreamed vision of computing as a utility, where user want to store their data remotely into the cloud and so as to enjoy the on demand of high quality application and services for the shared pool of configurable computing storage of outsourcing data so users can be relieved from the burden about local storage and maintenance of data. However, in general the users have no longer physical possession of large size of outsourcing data makes data integrity protection in Clouding and a very challenging , potentially formidable task, this is for users especially with constrained resources and capabilities of cloud computing. And to enabling public availability of cloud stored data for security of critical importance of users and they can resort to an external third party to check the integrity of user outsourced data when user needed. To securely introduce an effective third party auditor (TPA), the following of two main requirements have to met 1) TPA has to work efficiently to audit the cloud data storage without local copy of data demanding, and no need of additional online burden to the cloud user. 2) The third party auditing process should bring in no new vulnerabilities towards user data privacy. In this paper we combine the public key based HomoMorphic authenticate with random masking to achieve the privacypreserving public cloud data auditing system, for to meet all the above requirements.
关键词：Data storage; privacy-preserving; public audit ability; cloud computing and delegation
