The Connection Anonymous Scheme of Trusted Network

In an open network access environment, the trusted network clients do not want to expose their identity. In this paper a new trusted network connection anonymous authentication scheme is presented, which is based on ring signature. By adding a ring administrator, it can be ensure the members of the ring to be the legitimate trusted network clients. The safety of the scheme is based on the CDH assumption and strong one-way function. It is suitable for engineering because of shorter public parameter size.