Abstract: Aimed at overcoming the limitations of current authentications on trusted platform, this dissertation puts forward an improved method based on one-way accumulator, and constructs its solution in detail.New solution introduces ring signature to protect client′s privacy with ring signature′s anonymity, what′s more, the ring length is fixed by the one-way accumulator which accumulates all the members′ information so that the ring won′t be too large with considerable members.During validation, the efficiency is promoted for the diminishment of the hash-compute times, encrypt-compute times and decrypt-compute times.Compared to existing ways of authentication, it indicates that new solution has lower time complexity and space complexity.At the same time, new solution guarantees anonymity and effectiveness, in addition to it makes up traditional ring-signature′s weakness mentioned above;it has high efficiency on the premise of security.