TIMER:Secure and Reliable Cloud Storage against Data Re-outsourcing
The semi-trusted servers in cloud environment may outsource the files of their clients to some low expensive servers to increase their profit.To some extent, such behavior may violate the wishes of cloud users and impair their legitimate rights and interests.In this paper, a probabilistic challenge-response scheme is proposed to prove that the clients files are available and stored in a specified cloud server.In or der to resist the collusion of cloud servers, common cloud infrastructure with some reasonable limits, such as rational economic security model, semi-collusion security model and response time bound, are exploited.These limits guarantee that a malicious cloud server could not conduct a t-round communication in a finite time.We analyze the security and per formance of the proposed scheme and demonstrate that our scheme pro vides strong incentives for economically rational cloud providers against re-outsourcing the clients data to some other cloud providers.
Cloud storage Economical server collusion Storage security Probabilistic scheme
Tao Jiang Xiaofeng Chen Jin Li Duncan S.Wong Jianfeng Ma Joseph Liu
State Key Laboratory of Integrated Service Networks (ISN),Xidian University,Xian,P.R.China School of Computer Science,Guangzhou University,China Department of Computer Science,City University of Hong Kong,Hong Kong Institute for Infocomm Research,Singapore
国际会议
福州
英文
346-358
2014-05-05（万方平台首次上网日期，不代表论文的发表时间）