A ID-based revocable group signature scheme

Abstract

In the case that third parties can not be trusted,the traditional ID signature security system does not suit for the group signature.A secure ID-based group signature scheme was proposed.Even when the Key Generation Center(KGC)was implausible,its safety could be ensured,and the group members could be safely added or deleted without changing the keys of other effective group members and public group key.At the same time,the lengths of key and signature were unrelated to the number of group members.