Web Services Trust Language (WS-Trust)
Web Services Trust Language (WS-Trust) is a specification that uses the secure messaging
mechanisms of WS-Security to
facilitate trust relationships in diverse Web service environments. WS-Trust is an integral part of
the Microsoft
model for a standards-based distributed identity infrastructure. WS-Trust also an important element
of Windows
CardSpace, an interface intended for the exchange of user identity information in Microsoft .Net 3.0.
WS-Trust defines a request/response process for the exchange of security tokens
in Kerberos,
X.509 and SAML (Security
Assertion Markup Language). The intent is to ensure operability for the exchange of security
information between different technologies, operating
systems or domains.
WS-Trust allows multiple security tokens to be combined, supporting identification of a service in
conjunction with a separate security token for each individual subscriber. WS-Trust can supplement
existing security technologies and methods.
This was last updated in July 2007
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