This documentation is for WSO2 Identity Server 5.2.0 . View documentation for the latest release.
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WS-Trust is a web service specification that provides extensions to WS-Security. The "Security Token Service" component of WSO2 Carbon enables you to configure the generic STS to issue claim-based security tokens. A claim-based security token is a common way for applications to acquire and authenticate the identity information they need about users inside their organization, in other organizations, and on the Internet. This Security Token Service is capable of issuing SAML 1.1 and SAML 2.0 tokens as recommended in WS-Trust and SAML Web Service Token Profile specifications. One of the main advantages of this STS is the reduced complexity for the web service consumer. 

The WSDL of this service can be accessed by clicking this URL: https://(hostname):(port)/services/wso2carbon-sts?wsdl. For instance, with the default configuration, the URL is https://localhost:9443/services/wso2carbon-sts?wsdl.

Both SAML 1.1 and SAML 2.0 token types are supported by default. The issued token type is decided based on the type of token defined in the RST (Request Security Token). Currently, the Bearer Subject Confirmation and Holder-Of-Key subject confirmation methods are both supported. With Holder-Of-Key, both Symmetric and Asymmetric key types are supported. You can obtain tokens containing claims that hold certain information about the subject. These claims can be extracted from the profiles or through custom claim callbacks which can be registered to the Carbon runtime.

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