As rapid development of the era,the network technology is also on new change,at present the focus of attention is undoubtedly cloud computing,it has become the most emerging in the field of computer research focus. However,security problems of cloud compu-ting have the key problems restricted the rapid development and popularization of cloud computing,and how to fast and safely store and transmit a large number of data generated by cloud environment,and has become a new research focus. In this paper analyze cloud com-puting in the data insecurity,realize an effective security data storage and encryption services model with cloud data reasonably encrypted technical means,and ensure the data storage and backup in the cloud environment.%随着时代的快速发展，网络技术也正在进行着新的变革，现阶段最受到人们关注的热点无疑就是云计算，它已经成为计算机领域中最新兴的研究重点。然而，云计算中的安全问题已经成为制约云计算快速发展和推广的关键问题，如何快速、安全地存储和传输生成于云环境中的大量数据，也已成为新的研究重点。文中在分析云计算中数据不安全因素的基础上，通过对云端数据进行合理加密的技术手段，实现了一种有效的安全数据存储和加密的服务模型，达到了对云环境中的数据进行安全的数据存储和备份。
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