To effectively support an encrypted search scheme with a high security level over cloud data, this paper introduces a new architecture, called TEES traffic and energy saving encrypted search, a bandwidth and energy efficient encrypted search architecture over mobile cloud. The proposed architecture offloads the computation from mobile devices to the cloud, and we further optimize the communication between the mobile clients and the cloud. It is demonstrated that the data privacy does not degrade when the performance enhancement methods are applied. It reduces the energy consumption by 35 to 55 percent by offloading the computation of the relevance scores to the cloud server. This reduces the computing workload on the mobile device side while at the same time significantly speeding up the mobile file access speed.
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