Location Based Encryption

Authors

Viet X. Tran, University of Wollongong, Data61, CSIROFollow
Willy Susilo, University of WollongongFollow
Guomin Yang, University of WollongongFollow
Jun Yan, University of WollongongFollow
Dongxi Liu, Data61, CSIROFollow

RIS ID

137385

Publication Details

Phoung, T. Viet Xuan., Susilo, W., Yang, G., Yan, J. & Liu, D. (2019). Location Based Encryption. Lecture Notes in Computer Science, 11547 LNCS 21-38.

Abstract

We first propose a 2D Location Based Encryption (LBE) scheme, where the setting includes a geography center system and the 2D triangle area including the set of locations. A user joining in the system is provided with a pre-arranged key, which belongs to her/his location. If the user's location is belonging to this area, he/she can decrypt the message. Our proposed scheme achieves a constant ciphertext size in encryption algorithm and decryption cost. Beyond the 2D-LBE scheme, we explore the 3D-LBE scheme; whereby the location is set up in the 3D dimensions. This proposed scheme is an extension of 2D-LBE scheme, which the ciphertext is also constant. Both two schemes are proved in the selective model under the decisional wBDHI assumption.