Forgery Attack Scheme to Blind Group Signature
Yang Gang · Jisuanji gongcheng · 2007
Yan Yajun proposed a blind group signature scheme and claimed that it is efficient. However, it is carefully analyzed and found that it could be forgery attacked. Any one of the group members can make forgery signature, which can be verified efficient but can not be open by the group authority. This paper proposes an effective forgery attack scheme, and the reason is also be given.