Publication Type

Conference Proceeding Article

Version

publishedVersion

Publication Date

7-2019

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 ℓ−ℓ−wBDHI assumption.

Keywords

2D/3D, Location based encryption, Constant ciphertext size, w-lBDHI

Discipline

Information Security

Research Areas

Information Systems and Management

Publication

Information Security and Privacy: 24th Australasian Conference, ACISP 2019, Christchurch, New Zealand, July 3-5: Proceedings

Volume

11547

First Page

21

Last Page

38

ISBN

9783030215477

Identifier

10.1007/978-3-030-21548-4_2

Publisher

Springer

City or Country

Cham

Additional URL

https://doi.org/ 10.1007/978-3-030-21548-4_2

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