| Summary: | 碩士 === 健行科技大學 === 資訊工程系碩士班 === 102 === In recent years, cloud computing promises to increase the velocity with which applications are deployed, increase innovation, and lower costs, all while increasing business agility. To follow expansion of cloud computing application services, the security problems of cloud computing will be appeared gradually. Recently, the development of cloud computing technology focuses on the infrastructure and service providing and in terms of data security is not perfect. Nevertheless, the data sharing on the cloud hard disk are not encrypted mostly, easily causing hackers to steal or trick users to obtain user’s account & passwords and then get private data. Therefore, this study presents a data sharing security mechanism for cloud computing to solve the currently facing security problems and a variety of network attacks, bring about the threat of data sharing. The data sharing phase in the cloud computing uses a mobile one-time password (MOTP) to authenticate, encryption modules to protect data, and classify information to the three level of security. It achieves improving the security of the data and preventing a variety of network attacks and threats.
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