Good Health Pass compliant implementations must implement standard methods for verifying the authenticity of the holder at specified levels of assurance.
As part of determining the blueprint for overall interoperability for Good Health Pass solutions, reach consensus on an interoperable solution to identity proofing and binding for a Good Health Pass that will meet the requirements of the coalition stakeholders.
From the very start of the Good Health Pass Collaborative, there has a particular focus on one of the most vexing digital identity challenges: identity binding.
In the context of health credentials, this is the problem of how a credential describing a specific health event (such as a COVID-19 test or vaccination) can be linked – as strongly as possible – to the identity of the patient who received that care. Ideally, from a security standpoint, this binding is so strong that only that patient (or their authorized delegate) can subsequently prove the credential belongs to her/him.
Identity Binding interoperability challenge is the one we described earlier in the paper about how a Good Health Pass compliant credential can be “bound” to the individual it describes (i.e., to the person who has received a COVID-19 test or vaccination) – and how, then, can that person subsequently prove that they are, indeed, the individual bound to that credential (authentication). The three zones involved with this challenge are repeated here for convenience:
Once you separate the problem space into these three zones, certain conclusions emerge:
Our primary goal is to solve use cases for global travel.
These credentials will need to cover COVID-19 health status:
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