云计算核心技术及安全问题

Cloud Core Technology and Security Issues

该文通过引用云计算的概念和特征，分析了云存储产生的背景，阐述了云存储应具有的特性和虚拟化技术，并强调虚拟化技术是云计算的核心技术；例举了在云计算行业应用领域里比较有代表性的两个应用系统——中国科技资源共享网和鸿蒙网：指出了云计算的两个突出的安全问题：系统、资料的不可空性以及数据的隐私性，并提出了解决这些问题的思路：最后介绍了云计算平台与应用实践方面有影响力的项目——IBM智慧地球。

This article references the concept and characteristics of cloud computing, analysed the background of cloud storage, Expounded the characteristic of cloud storage and the virtualization technologies, and stressed that virtualization technology is the core technology of cloud computing; Enumerated two representative application system in Industry application field of cloud computing--www.worldhm.com and www.escience.gov.cn;; Pointed out two prominent safety problems of the cloud computing： the uncontrollability of System and mate- rial, and the privacy of data, and Put forward the ideas to solve these problems; At last, the paper introduces an influential project of the cloud computing platform and application . - IBM wisdom of the Earth.