Abstract
The development of online social networks allows users to communicate with each other and share their resources when and where. However, in the process of data dissemination, the user loses control of the private information if the user shares resources into the social network, which may lead to privacy leakage. In order to solve the above problems, the paper proposes an extended access control mechanism for online social networks. This mechanism not only controls the operation rights of direct users, but also controls the assignable rights of indirect users, achieving the purpose of extended authorization. In this paper, the attribute modeled as a five-tuple is defined in detail, and requirement of each attribute is described. Furthermore, we assign different weights to different operation types of resources, and judge whether the resource operation is satisfied by calculating the degree of trust and the weight, thus determine user’s permissions. Finally, through case analysis and scheme comparison, we prove that the extended authorization mechanism can effectively control the spread of information and protect user’s privacy.
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More From: DEStech Transactions on Computer Science and Engineering
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