Short group signature with full anonymity for large groups
Yajuan Zhang · Jisuanji yingyong yanjiu · 2009
This paper presented a new zero-knowledge protocol for the triple(A,x,y),which was based on CS98 encryption and SDH assumption.Using this protocol as a building block,constructed a new short group signature,which was provable secure.The scheme was of IND-CCA2-full-anonymity,allowed new members to join in the group dynamically,and group mana-ger couldn't forge any member's signature,then the scheme satisfied non-frameability.The signature is only 153 4 bit in size.