Trusted research of distributed database server system

We introduce a trusted computing technique for Distributed Database Server System(DDSS),and discuss the imple- mentation of trusted authorization,the management logic of authority,and the processing of the authority-machine.In this paper,a new model of Trusted DDSS(TDDSS) is presented.In this system,many new techniques are adopted,for example,mechanism of the chain of trust,role-based access control model,two-level of logs,trusted authorization and so on.At the same time,a new technique of trusted computing in the distributed computing system is given.