Research Area: Cloud Security
In cloud environments, group data sharing has become a hot topic in recent years. How to share data securely and efficiently in cloud environments is an urgent problem to be solved. Recently, an anonymous and traceable group data sharing scheme was proposed by Shen et al. to address this issue. They constructed their scheme using a group signature scheme as the building block. In this comment, we discuss the security of their group signature scheme and point out that it does not achieve the anonymity which they claimed and give a corresponding attack.
Keywords:
Anonymous
attack
cloud computing
group signature
traceable
Author(s) Name: Xi-Jun Lin; Lin Sun; Haipeng Qu
Journal name: IEEE Transactions on Information Forensics and Security
Conferrence name:
Publisher name: IEEE
DOI: 10.1109/TIFS.2021.3065505
Volume Information: Volume: 16, Page(s): 2773 - 2775
