A new certificateless signature with enhanced security and aggregation version‡. (5th June 2015)

• Record Type: Journal Article
• Authors: Deng, Jiang; Xu, Chunxiang; Wu, Huai; Dong, Liju
• Other Names: Simmhan Yogesh guestEditor.; Ramakrishnan Lavanya guestEditor.; Antoniu Gabriel guestEditor.; Goble Carole guestEditor.; Yu Yong guestEditor.; Mu Yi guestEditor.; Lu Rongxing guestEditor.; Ren Jian guestEditor.; Venticinque Salvatore guestEditor.; Camacho David guestEditor.
• Is Part Of: Concurrency and computation. Volume 28:Number 4(2016)
• Page Start: 1124
• Page End: 1133
• Publication Date: 2015-06-05
• Subjects: Certificateless cryptography -- Aggregate signature -- Bilinear pairing; Parallel processing (Electronic computers) -- Periodicals; Parallel computers -- Periodicals; 004.35
• DOI: 10.1002/cpe.3551
• Languages: English
• ISSNs: 1532-0626

Abstract

Summary: To satisfy the applications in certificateless environment, many researchers have been investigating certificateless aggregate signature schemes. Several schemes that are independent with the aggregated numbers are proposed to reduce the computation overhead. In these schemes, the pairing computations that in verification procedure needs are a constant value. Recently, Hou et al . proposed an improved certificateless aggregate signature scheme. They demonstrated the scheme is provably secure in the random oracle model. However, we find that their scheme is insecure in their security model by giving a concrete attack. Then, we propose an improved certificateless signature scheme and use it to construct a new certificateless signature scheme with enhanced security and aggregation. Furthermore, we provide formal security proof of our new scheme. Compared with other four schemes, our enhanced protocol is more suitable for realistic applications. Copyright © 2015 John Wiley & Sons, Ltd.