Working with XACML

XACML is an XML-based language for access control that has been standardized by the Technical Committee of the OASIS consortium. XACML is very popular as a fine grained authorization method among the community.  Fine-grained authorization specifies the requirements and variables in an access control policy that is used to authorize access to a resource. However, there are plenty of other aspects of XACML other than it being just a fine grained authorization mechanism.

Info

For more information about XACML, see Access Control and Entitlement Management.

We generally use the HTTPS transport protocol for calling a Web Service API that has been exposed by the PDP (Policy Decision Point). With WSO2 Identity Server, we can also use the Thrift protocol to communicate with the PDP. Since is a well known fact that Thrift is faster than HTTP, we can get significantly higher performance along with less response time by using thrift protocol with WSO2 Identity Server.

Note

Using thrift in XACML calls

In order to use thrift in XACML calls, you must first enable the thrift service. To do this, set the following property to true in the deployment.toml file found in the <IS_HOME>/repository/conf folder.

[entitlement.thrift] 
enable=true

The following topics provide information and instructions on how to use XACML to perform various access control related functions.

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