Title: A Dynamic Sub-Group Signature Scheme with Forward Security
Abstract: In the previous sub-group signature schemes,the property of safety and efficiency have not been achieved at the same time.A forward secure and dynamic sub-group signature scheme is proposed in this paper.The forward security,compositional integrity,unlinkability of sub-group signature and some other safety properties are achieved at the same time.The scheme is bulding without signture of knowledge,so it is more efficient than the previous schemes.In the scheme,the group manager can safely add or delete members while keeping the secret keys of the other members unchanned.Goup center’s public keys are unchanned during the revocation.The security of the new scheme is analyzed sufficiently in the random oracle.And the efficiency of the new schemes is compared with the previous schemes using specific parameters.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot