We carried out an IBE system which is based on trust service in this paper, then pointed out the superiority of the new system when comparing its key management mode with PKI.

• 本文针对这些问题提出了一个基于信任服务的IBE系统，并通过将该系统与PKI系统的密钥管理方式进行对比，指出该系统的优越之处。