Research on access control based on XACML in service oriented architecture

SOA posed the new security challenge to access control mechanism due to its dynamic nature, heterogeneity and loose-coupling. It extended service description model, added security constrain description in order that the expression could be rich and flexible to the demand for finding security service. Access control model based on XACML improve the access control security in SOA. And the method can realize the demand of service discovery for specific security attribute service.