期刊名称：Advanced Computing : an International Journal
印刷版ISSN：2229-726X
电子版ISSN：2229-6727
出版年度：2017
卷号：8
期号：1/2
页码：1
DOI：10.5121/acij.2017.8201
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Cloud computing is defined as a type of computing that relies on sharing computing resources rather thanhaving local servers or personal devices to handle the applications. User can easily modify the shared andstored data in the cloud. To overcome this data modification in cloud the signature is provided to eachindividual user who accesses the data in cloud.Once the data is modified by the user on a block, the user must ensure that the signature is provided on thatspecific block. When user misbehaves or misuses the system the admin has authority to revoke thatparticular user from the group. After revoking that user, the existing user must re-sign the data signed bythe revoked user. In addition to this, the security of the data is also enhanced with the help of publicAuditor who is always able to audit the integrity of shared data without retrieving the entire data from thecloud.
关键词：Cloud Computing; PublicAuditor; Revoke User; Signature; Data Integrity
