答案：【计分规则】: Trust management solutions can be classified into three categories: Trust and reputation based trust management, trusted computing based trust management, and a hybrid solution.For trust and reputation based trust management, it is a specific approach to evaluate and control trust. It can support trusted communications and collaborations among computing nodes in a system. This kind of solutions provides intelligence for trust decision, but lacks root trust support. Thus the trustworthiness of trust management system is a problem.Trusted computing based trust management is concerned as a technology which applies sound security technologies and cryptographic theories to ensure the trustworthiness of a computer, communication or networking system. It focus on security property of trust, but generally did not ensure other properties of system trust, such as usability and user’s concern. Thus it lacks intelligence to automatically control and maintain dynamically changed trust relationships.A hybrid solution applies both the trusted computing and trust evaluation technologies in order to overcome the disadvantages of the above two kinds of solutions. It can provide multiple properties of trust and meanwhile has root trust support. It can also provide both system intelligence and trustworthiness. However, it is complicated, not generic and flexible to apply into various applications.
