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Cloud computing is a revolutionary computing environment, which allows user a flexible, on-demand, and low-cost usage of computing resources, but as the data is outsourced to some cloud servers, and various privacy issues emerge from it. To handle these security problems, various schemes based on the Attribute-Based Encryption have been proposed recently. Attribute-based Encryption (ABE) is a cryptographic conducting tool to guarantee data owner's direct control over their data in public clouddoi:10.21275/v4i11.nov151519 fatcat:y66zekzkorfz3efh2byxm6b62u