Security Analysis of the First Certificateless Proxy Signature Scheme Against Malicious-But-Passive KGC Attacks. (5th August 2020)

• Record Type: Journal Article
• Authors: Lin, Xi-Jun; Wang, Qihui; Sun, Lin; Yan, Zhen; Liu, Peishun
• Is Part Of: Computer journal. Volume 64:Number 4(2021)
• Page Start: 653
• Page End: 660
• Publication Date: 2020-08-05
• Subjects: CLPS -- certificatless -- MKGC -- signature -- forgery; Computers -- Periodicals; 005.1
• DOI: 10.1093/comjnl/bxaa105
• Languages: English
• ISSNs: 0010-4620

Abstract

Abstract: Recently, Yang et al. proposed the first certificateless proxy signature scheme against malicious-but-passive key generation center (MKGC) attacks. They proved that their scheme can resist the MKGC attacks in the standard model. In this paper, we point out that their scheme cannot achieve this security because the adversary can forge valid signatures.