Research Article
A Practical Group Signatures for Providing Privacy-Preserving Authentication with Revocation
@INPROCEEDINGS{10.1007/978-3-030-21373-2_18, author={Xiaohan Yue and Jian Xu and Bing Chen and Yuan He}, title={A Practical Group Signatures for Providing Privacy-Preserving Authentication with Revocation}, proceedings={Security and Privacy in New Computing Environments. Second EAI International Conference, SPNCE 2019, Tianjin, China, April 13--14, 2019, Proceedings}, proceedings_a={SPNCE}, year={2019}, month={6}, keywords={Group signature Revocation Backward security Efficiency}, doi={10.1007/978-3-030-21373-2_18} }- Xiaohan Yue
Jian Xu
Bing Chen
Yuan He
Year: 2019
A Practical Group Signatures for Providing Privacy-Preserving Authentication with Revocation
SPNCE
Springer
DOI: 10.1007/978-3-030-21373-2_18
Abstract
In recent years, many revocable group signatures schemes were proposed; however, the backward security, which can disable a revoked signer to generate group signatures pertaining to future time periods, was not fully realized through those schemes. In this paper, we present a security model with the definition of backward security and propose a revocable group signatures scheme that is more efficient than previous ones, especially in Sign and Verify algorithms, which are performed much more frequently than others. In addition, considering the heavy workload of group manager in original group signatures, we separate a group into groups by employing a decentralized model to make our scheme more scalable, and thus more practical in real-life applications.