Title :
Distributed and dynamic threshold group signature scheme
Author_Institution :
Dept. of Comput. Sci., Jinan Univ., Guangzhou, China
Abstract :
A distributed and dynamic threshold group signature scheme without a designated group manager is proposed in this paper. The proposed scheme not only can satisfy the properties of threshold group signature, but also has distributed and dynamic properties, that is, the proposed scheme allows that any t or more group members collaboratively admit prospective members or revoke group members without the group manager. In case of a later dispute, the at least any t or more group members can collectively revoke the anonymity of any threshold group signature and reveal the identity of the signers. Furthermore, the proposed scheme doesn¿t require any interaction and any costly reliable broadcast communication among sponsoring admission and revocation, moreover the scheme only needs two interaction and broadcast communication among signers in generating threshold group signature. So the scheme is more efficient and has many practical applications in full decentralized and lack central-trusted control environments.
Keywords :
broadcasting; digital signatures; mobile computing; mobile radio; peer-to-peer computing; broadcast communication; distributed threshold group signature scheme; dynamic threshold group signature scheme; interaction communication; mobile ad-hoc networks; peer-to-peer systems; Ad hoc networks; Broadcasting; Centralized control; Collaboration; Communication system control; Computer science; Cryptography; Mobile communication; Power system management; Telecommunication network reliability; distribued control; dynamic membership; threshold group signature;
Conference_Titel :
Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-2423-8
Electronic_ISBN :
978-1-4244-2424-5
DOI :
10.1109/ICCS.2008.4737327