Title: Plaintext aware encryption in the standard model under the linear Diffie-Hellman knowledge assumption
Authors: Dongwei Gao; Hefeng Chen; Chin-Chen Chang
Addresses: Computer Engineering College, Jimei University, Xiamen 361021, China ' Computer Engineering College, Jimei University, Xiamen 361021, China ' Department of Information Engineering and Computer Science, Feng Chia University, Taichung 407, Taiwan
Abstract: In this paper, we consider the problem of constructing new plaintext aware encryption in the standard model. A new hybrid asymmetric encryption scheme is presented using a new key encapsulation method and a data encapsulation method. To prove the presented asymmetric encryption scheme is simulatable, we put forward some new sufficient conditions for judging a group to be simulatable. By introducing a new assumption called linear Diffie-Hellman knowledge assumption, we prove the proposed hybrid asymmetric encryption scheme is PA2.
Keywords: plaintext aware; PA2; linear Diffie-Hellman knowledge assumption; key encapsulation method; data encapsulation method.
International Journal of Computational Science and Engineering, 2020 Vol.22 No.2/3, pp.270 - 279
Received: 23 Jan 2019
Accepted: 03 Jul 2019
Published online: 18 May 2020 *