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In this paper, we propose an efficient, secure and privacy-preserving scheme for smart grid downlink communication. Specifically, we propose an efficient identity based signcryption scheme, called EIBSC, providing privacy preservation in downlink communication for smart grids. The proposed scheme is characterized by employing the concealing destination technique on a tree network topology to protect...
This paper studies privacy-preserving for downlink transmission in multiuser relay systems, where a source communicates with multiple users via a relay employing the amplify-and-forward (AF) protocol. At any scheduling unit, only one user (desired user) is selected to receive the source information, and the other users (undesired users) are viewed as potential eavesdroppers due to the broadcast nature...
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