This documentation is for WSO2 Identity Server 5.3.0 . View documentation for the latest release.

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WS-Federation (Web Services Federation) describes the management and brokering of trust relationships and security token exchange across Web services and organizational boundaries. WS-Federation is a part of the larger WS-Security framework. For example, WS-Federation builds on the Security Token Service (STS) by providing mechanisms that facilitate interactions. In the WS-Federation Model, an Identity Provider is a Security Token Service (STS). Service Providers depend on an Identity Provider or Security Token Service to do the user authentication. According to the Trust Brokering model defined in the WS-Trust specification, the subject (user) should authenticate himself to themselves to the STS before obtaining a token. STS may use this authentication information when constructing the security token. For example, STS may populate the required claims based on the user name provided by the subject.

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