Group Signcryption Scheme Based on Bilinear Pairings
Lin Qi-ping · Journal of Hanshan Normal University · 2007
There are few papers concerning group signcryption,and even fewer papers about group signcryption that can be proved security.A new group signcryption scheme is proposed based on bilincar pairings,which base on known security effective group signature.A little of the signing section of the group signature is modified to achieve our group signcryption.It can be verified that it not only have no effect on the security of group signature but also realizes encryption,and the length of the group signcryption is a constant which does not change with the change of the group member.