云存储数据完整性验证方法研究与实现

发布时间：2018-05-14 06:42

本文选题：云存储 + 数据完整性　；参考：《华东理工大学》2013年硕士论文

【摘要】：随着网络的快速发展,云计算是当前学术界和工业界都关注的热点,云存储是云计算的延伸发展,是主要提供在线存储功能的云服务。但是限制云存储进一步发展的关键因素在于用户担忧云存储数据的安全性,数据的完整性是数据安全首要目标之一,而且当前并没有一个完整有效的云存储数据完整性验证的方案。因此云存储背景下的数据完整性验证研究具有重要的现实意义和理论意义。论文主要针对云存储为背景下的数据完整性进行研究,在分析现有数据完整性验证方案的基础上,利用可恢复性证明(Proof of Retrievability, PoR)原理和消息摘要第五版算法(Message Digest Algorithm,MD5)提出一种完整的数据完整性验证方法。具体研究工作如下： (1)提出一种完整的云存储数据完整性验证方法：在数据存储预处理中使用抽样数据参与验证信息的计算,避免所有数据参与计算,减少计算资源的消耗；将用户数据完整性验证的工作转移到被认为是可信的第三方,减少用户在数据完整性验证上的负担；在数据传输阶段,加入身份认证的步骤,避免数据在网络传输中受到攻击； (2)提出存储服务器动态管理机制,提高数据在云服务器上的安全性和可靠性； (3)建立该方案的设计架构,分析该方案在静态数据和动态数据上的应用。
[Abstract]:With the rapid development of the network , cloud computing is the focus of the current academic circle and industry . Cloud storage is the extension development of cloud computing . The key factor to limit cloud storage is that users worry about the security of cloud storage data , the integrity of data is one of the primary objectives of data security , and there is no scheme to validate the integrity of cloud storage data . Therefore , the research of data integrity verification under cloud storage context has important practical significance and theoretical significance .

On the basis of analyzing the existing data integrity verification scheme , the paper proposes a complete verification method of data integrity based on the analysis of the existing data integrity verification scheme . The concrete research work is as follows :

( 1 ) proposing a complete verification method of the integrity of the cloud storage data , using the sampling data to participate in the calculation of the verification information in the data storage preprocessing , avoiding all data participation calculation , and reducing the consumption of computing resources ;
transferring the work of user data integrity verification to a third party considered to be trusted and reducing the burden on the data integrity verification of the user ;
during the data transmission stage , the step of identity authentication is added , so that the data is prevented from being attacked in the network transmission ;

( 2 ) proposing a storage server dynamic management mechanism to improve the security and reliability of the data on the cloud server ;

( 3 ) establishing the design framework of the scheme , and analyzing the application of the scheme on the static data and the dynamic data .

【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP333

【参考文献】