Welcome to the resource topic for 2003/116
Title:
A New ID-based Group Signature Scheme from Bilinear Pairings
Authors: Xiaofeng Chen, Fangguo Zhang, Kwangjo Kim
Abstract:We argue that traditional ID-based systems from pairings seem unsuitable for designing group signature schemes due to the problem of key escrow. In this paper we propose new ID-based public key systems without trustful KGC from bilinear pairings. In our new ID-based systems, if dishonest KGC impersonates an honest user to
communicate with others, the user can provide a proof of treachery of the KGC afterwards, which is similar to CA-based systems. Furthermore, we propose a group signature scheme under the new systems, the security and performance of which rely on the new systems. The size of the group public key and the length of the signature are independent on the numbers of the group.
ePrint: https://eprint.iacr.org/2003/116
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