In this abstract propose a novel cryptographic solution , called verifiable attribute-based keyword search ( VABKS ). The solution allows a data user, whose credentials satisfy a data owner’s access control policy, to (i) search over the data owner’s outsourced encrypted data, (ii) outsource the tedious search operatio ns to the cloud, and (iii) verify whether the cloud has faithful ly executed the search operations. We formally define the secur ity requirements of VABKS and describe a construction that satisfies them. Performance evaluation shows that the proposed schem es are practical and deployable.
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