this post was submitted on 11 Aug 2023
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There would be too much value in tracking that token for such a scheme to stay secure. Governments or shady corporations or illegal black markets or all of the above would be all over keeping tabs on what sites are visited by which tokens and matching them to identities.
The whole point is that the token itself doesn't have any personal info attached to it, only a yes/no and expiry time.
I'll even one up my original suggestion - it uses standard public/private key encryption, where the government issues a simple json token with a yes/no Boolean and a TTL. The public key that can decrypt the tokens is public. Pornhub then decrypts the token and verifies the boolean and expiry date, all without talking to the government at all.
ISPs already have, and do sell that data.