Authorized Group Signature Schemes Based on ACJT Scheme
Zheng Jian-de · Computer and Modernization · 2007
Group signature schemes allow a group member to sign messages anonymously on behalf of the group.However,in the case of a dispute,the identity of a signature's originator can be revealed(only) by a designated entity.Most of the group signatures available are supposed all member of the group has the same right though the members must be of different right in some cases.This paper utilizes the authorized group signature concept proposed in [3],and then constructs two more efficient and secure group signature schemes base on scheme~([1]),proves the schemes are more efficient and secure than scheme[3].