zkp would allow this if it was designed right. if it was just one bit. but age limits vary and birthdays are quite distinct.
Based on the article it seems like, even with a carefully designed protocol, the role of credential issuers will be a problem.
I gather that verifiers need to trust issuers. In practice, this likely results in there being only a few widely trusted issuers, most likely large institutions like governments.
The article then suggests that issuers will be able to track where and how the credential is being used. I read that to mean no anonymity at all vis-a-vis the issuer.
The very possibility of such tracking by the issuer seems like a fatal flaw. Unless there is a way of proving to everyone that such tracking is not occurring, one would need to rely on mere assurances to that effect, and that seems unacceptable.
Not sure if I'm putting all the pieces together correctly, but that's my current understanding.
I gather that verifiers need to trust issuers. In practice, this likely results in there being only a few widely trusted issuers, most likely large institutions like governments.
The article then suggests that issuers will be able to track where and how the credential is being used. I read that to mean no anonymity at all vis-a-vis the issuer.
The very possibility of such tracking by the issuer seems like a fatal flaw. Unless there is a way of proving to everyone that such tracking is not occurring, one would need to rely on mere assurances to that effect, and that seems unacceptable.
Not sure if I'm putting all the pieces together correctly, but that's my current understanding.
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