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In RAF cappuccino: a unique identifier, medium-level identity assurance, and the 'affiliation' attribute reflects the status no longer than one month in arrears. This level can be combined with single-factor authenticator strength (http://refeds.org/sfa)
In RAAF RAF Espresso: there is a unique identifier, high-level identity assurance, and the 'affiliation' attribute reflects the status no longer than one month in arrears. This level is best combined with multi-factor authenticators (http://refeds.org/mfa).
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