Hidden policy ciphertext-policy attribute-based encryption with keyword search against keyword guessing attack

Abstract

Attribute-based encryption with keyword search (ABKS) enables data owners to grant their search capabilities to other users by enforcing an access control policy over the outsourced encrypted data. However, existing ABKS schemes cannot guarantee the privacy of the access structures, which may contain some sensitive private information. Furthermore… (More)
DOI: 10.1007/s11432-015-5449-9

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