Certificateless multi-signcryption scheme in standard model. (2018)

• Record Type: Journal Article
• Authors: Wu, Xuguang; Zhang, Minqing; Zhu, Shuaishuai
• Is Part Of: International journal of grid and utility computing. Volume 9:Number 2(2018)
• Page Start: 120
• Page End: 127
• Publication Date: 2018
• Subjects: signcryption -- multi-signcryption -- certificateless encryption; Electronic data processing -- Distributed processing -- Periodicals; Electronic commerce -- Management -- Computer programs -- Periodicals; 004.605
• Languages: English
• ISSNs: 1741-847X

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.