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January 2005

Key to the World

BITS & BOLTS SAML's portable trust makes federated identity work. The way most e-commerce works--B2B and B2C--is that a person signs on to a Web site and provides his credentials, which are verified through stored identities typically only valid for that session and that domain. It's a cumbersome process that slows the user experience and transactions, and requires expensive identity stores and management systems. The idea behind Web services and federated identities is that you only need one identity to access multiple accounts and resources across different, trusted domains. The magic behind the process is Security Assertion Markup Language (SAML), the standard that breathes life into the growing world of XML-based communications. SAML, developed by OASIS in collaboration with several identity management vendors, provides a means for trusted parties to leverage federated identities and for trusted third parties to act as an authority for hundreds or thousands of service providers simultaneously. In theory, this means that one ...

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