Efficient rank multi-group signature
Wang Guo-cai · Computer Engineering and Applications Journal · 2008
The notion of rank multi-group signature is proposed for the first time,and a concrete scheme is given as well.Different group members have different signing ability in the scheme,and no one can sign a message out of his purview.Meanwhile,the scheme satisfies ordinary security properties of group signature.The solution is efficient in that it only needs two multiplication to update the E and F for the creditable center to exclude one group member,and the signing and verifying procedure is independent of the number of the current and excluded group members,so it is efficient.