A Fully Secure Ciphertext-Policy Attribute-Based Encryption With a Tree-Based Access Structure

Abstract

A new fully secure ciphertext-policy attributed based encryption (CP-ABE) scheme with high expressibity access policy is presented. Our CP-ABE scheme uses tree-based access structure which includes AND, OR, threshold and NOT gates which granted high degree of expressibility for encryptor to make an access policy. Moreover, our scheme achieves full security… (More)

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4 Figures and Tables