Abstract
AbstractWith the development of society and the rapid increase of social networks, access control has become a big challenge. The current mainstream centralized access control methods have shortcomings such as single point of failure, low scalability, low availability and low non-repudiation. When using blockchain technology for access control, it is necessary to consider how to use the characteristics of blockchain to solve the problem of centralized access control and improve the performance limitations of the blockchain itself. Therefore, this paper proposes a blockchain-based social network access control mechanism, which uses feature extraction to simplify roles, and uses voting to allow users to participate in the authorization process of personal information. User identity authentication is more complete, and the process of information data circulation is effectively achieved. Transparent. Simulation experiments show that the scheme can provide a fast, comprehensive and scalable access control mechanism.KeywordsBlockchainRole accessAccess controlSmart contractSocial network
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