| Summary: | 碩士 === 大同大學 === 資訊工程學系(所) === 103 === Due to the rise of the Internet of Things, there are all kinds of smart appliances in every family, which results in the use of smart devices ubiquitous. Hence the smart grid and smart meter’s deployment quietly spring up, the users and power company can monitor their power consumption. However, some of the information transmitted from the smart devices exist some potential privacy threats to users. If there isn’t an effective privacy protection model which can control these transmitted sensitive information, the malicious people will illegally use them to reveal customers’ daily activities, personal privacy messages, power consumption, appliances model and so on. In recent years, some researches proposed using commands to control the server for the purpose of protection which is based on the Attribute-based encryption algorithm (ABE), and then returned the information with asymmetric encryption algorithm to the client. Moreover, utilizing access control management to monitor each of automatic appliance working. However, the ABE has some problems about high computation and revocation, which will bring a great burden for users. Therefore, we will resolve the related problems in this paper and propose a scheme that can not only release computation burden of clients but also possess efficient revocation.
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