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Media sharing is an extremely popular paradigm of social interaction inonline social networks (OSNs) nowadays. The scalable media access control isessential to perform information sharing among users with various accessprivileges. In this paper, we present a multi-dimensional scalable media accesscontrol (MD-SMAC) system based on the proposed scalable ciphertext policyattribute-based encryption (SCP-ABE) algorithm. In the proposed MD-SMAC system,fine-grained access control can be performed on the media contents encoded in amulti-dimensional scalable manner based on data consumers' diverse attributes.Through security analysis, we show that the proposed MC-SMAC system is able toresist collusion attacks. Additionally, we conduct experiments to evaluate theefficiency performance of the proposed system, especially on mobile devices.

Attribute-Based Multi-Dimensional Scalable Access Control For Social Media Sharing