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Federated Identity Management is an emerging paradigm that is rightly getting a lot of standardization and research attention. One aspect that is not receiving enough attention is assurance. The paper provides an exposition of the assurance process, how it applies to identity management and particularly to federated identity management. Their contribution is to show technology can be used to overcome many of trust, transparency and information reconciliation problems. Specifically they show how declarative assurance models can orchestrate and automate much of the assurance work, how certain enforcement technologies can radically improve identity assurance, and how an assurance framework can provide a basis for judging the assurance value of security technologies.
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