云计算中数据安全关键技术的研究

发布时间：2018-08-13 11:49

【摘要】：云计算最早由Google提出，是融合了网格计算、分布式计算、并行计算、效用计算、虚拟化等传统计算机和网络技术的一种新的计算模式。云计算不仅仅实现了IT技术的革新，更是IT商业模式和服务模式的一次重大革命。随着云计算技术应用的进一步深入，云安全也成为IT界关注的焦点。如何保证“云”中数据的安全，是云计算面临的关键问题。本文主要研究云计算的安全问题，重点研究了其中数据安全的关键性问题和相关的技术解决方案。首先，本文详细介绍了云计算的发展、特征、体系架构及应用现状，，分析了云计算存在的安全风险和问题，总结了相应的安全策略，并在此基础上提出了一个基于云计算层次结构的安全框架。其次，研究了云计算数据安全的问题。从云数据的生命周期出发，分析了各阶段数据安全的需求，总结了数据安全的隐患与风险；介绍了大型分布式数据系统BigTable，探讨了确保云计算数据机密性和完整性的安全策略；重点研究了云数据安全的密钥管理策略、数据加密技术、云计算的身份认证和访问管理（IAM）方案。最后，本文研究了全同态加密算法的特性，在此基础上提出了一个基于全同态加密算法的云数据安全方案，并对该方案的应用场景进行了分析。
[Abstract]:Cloud computing was first proposed by Google as a new computing model that combines grid computing, distributed computing, parallel computing, utility computing, virtualization and other traditional computer and network technologies. Further in-depth, cloud security has become the focus of the IT community. How to ensure the security of data in the "cloud" is the key issue facing cloud computing.
This paper mainly studies the security of cloud computing, focusing on the key issues of data security and related technical solutions.
Firstly, this paper introduces the development, characteristics, architecture and application status of cloud computing in detail, analyzes the security risks and problems of cloud computing, summarizes the corresponding security strategies, and proposes a security framework based on cloud computing hierarchy.
Secondly, the problem of data security in cloud computing is studied. Starting from the life cycle of cloud data, the requirements of data security in different stages are analyzed, and the hidden dangers and risks of data security are summarized. According to the security key management strategy, data encryption technology, cloud computing authentication and access management (IAM) scheme.
Finally, this paper studies the characteristics of homomorphic encryption algorithm, and proposes a cloud data security scheme based on homomorphic encryption algorithm, and analyzes the application scenario of this scheme.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.08

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