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Liberty's ID-WSF 2.0 supports SamL (Security Assertions Mark-up Language) 2.0 from web services standards body Oasis (Organisation for Advancement of Structured Information Sciences).
SamL defines a framework for communicating security and identity information between computer systems, with SamL providing improved security in XML.
Liberty said the move was part of its strategy to help converge different identity specifications to deliver interoperability.
George Goodman, president of Liberty Alliance's management board, said, "These specifications provide a blueprint for driving convergence between federated identity and web services specifications, a necessary step to complete interoperability."
Gerry Gebel, an analyst at Burton Group, said, "SamL 2.0 is a significant convergence point in the evolution of federation standards. It is important that suppliers and other organisations involved in the standards development process provide a clear roadmap to support this latest version of SamL."