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The network library configuration is a digital identity standards group. The Liberty Alliance
Project [9] is a consortium of technology vendors and consumer-facing
enterprises formed "to establish an open standard for federated network identity."
It aims to make it easier for consumers to access networked services from
multiple suppliers while safeguarding security and privacy. It does not explicitly
use trust management methods, but its specifications are closely linked to the
SAML (Security Assertion Markup Language [10]) single sign-on standard, and
they overlap with certain elements of WS-Security. So the Liberty Alliance has
its own representation and enforcement requirement for trust-related activities,
and mechanisms for establishment and exchange of trust relationships. Its
specifications have been published in three phases: the Identity Federation
Framework (ID-FF) came first in early 2003, the Identity Web Services
Framework (ID-WSF) followed in late 2003, and the Identity Services Interface
Specifications (ID-SIS) document was finalized in late 2004.
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