To be clear, I'm not advocating for online age verification. I'm very much against it in any form. I'm just curious from a technical standpoint if it's possible somehow to construct an accurate age verification system that doesn't compromise a user's privacy? i.e., it doesn't expose the person's identity to anyone nor leaves behind a paper trail that can be traced to that person?

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[–] 2 points 11 months ago (1 child)

The problem is that it leaves a paper trail.

Grace also knows what number n got verified, and the identity of the user n. Later, the website can ask the age-verifying service who user n actually was. It requires that the age-verifying service cooperates with the website, though, but this could be mandated by law, which would create a single point of (privacy) failure.

PS: i love your writing style. It's so simple and clear :)

Cryptography is a really complicated subject. You managed to express it very easily understandable.

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