Title: Certificateless multi-signcryption scheme in standard model

Authors: Xuguang Wu; Minqing Zhang; Shuaishuai Zhu

Addresses: College of Cryptographic Engineering, Engineering University of Chinese Armed Police Force, Xi'an, China ' College of Cryptographic Engineering, Engineering University of Chinese Armed Police Force, Xi'an, China ' College of Cryptographic Engineering, Engineering University of Chinese Armed Police Force, Xi'an, China

Abstract: A signcryption scheme can realise the security objectives of encryption and signature simultaneously, which has lower computational cost and communication overhead than the sign-then-encrypt approach. To adapt multi-user settings and solve key escrow problem of ID-based multi-signcryption schemes, we defined the formal model of certificateless multi-signcryption scheme and proposed a certificateless multi-signcryption scheme in the standard model. The scheme is proved secure against adaptive chosen ciphertext attacks and adaptive chosen message attacks under decisional bilinear Diffie-Hellman assumption and computational Diffie-Hellman assumption respectively.

Keywords: signcryption; multi-signcryption; certificateless encryption.

DOI: 10.1504/IJGUC.2018.091718

International Journal of Grid and Utility Computing, 2018 Vol.9 No.2, pp.120 - 127

Received: 30 Apr 2016
Accepted: 10 Feb 2017

Published online: 01 May 2018 *

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