this post was submitted on 30 Nov 2024
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Many might've seen the Australian ban of social media for <16 y.o with no idea of how to implement it. There have been mentions of "double blind age verification", but I can't find any information on it.

Out of curiosity, how would you implement this with privacy in mind if you really had to?

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[–] [email protected] -1 points 3 weeks ago (1 children)

I'd lean on the ISPs. Your ISP knows what sites you visit, and they have your location and payment information. They can just insert some verification page when a classified IP is contacted. This gives them hardly any information beyond what they already have. And since they are mainly located in Australia, it is easy to enforce laws on them.

You have to lean on ISPs anyway because it is quite ridiculous to assume that the entire global internet will implement Australian laws. Does anyone believe that their Lemmy instance will implement some AI face scan or cryptography scheme?

You would have to block servers that do not comply with the law anyway. The effective solution would be a whitelist of services that have been vetted. In practice, I think we'll see the digital equivalent of ok boomer.

If a whitelist seems extreme, then one should have another look at the problem. The point is to make sure that information is only accessed by citizens with official authorization. There is no technological difference between the infrastructure needed to enforce this (or copyrights) and some totalitarian hellscape.

[–] [email protected] 1 points 3 weeks ago (1 children)

This gives them hardly any information beyond what they already have.

Except now they know the individuals using your Internet.

Sure if you live alone they already can easily put that information together. However if you have a partner, a relative and children all living in one house they now know who is in that home.

Plus maybe no one in the house uses Twitter and Aunt Alice the Twitter user came to visit, does she need to reverify? Your ISP knows that now.

ISPs would be gaining a lot of new information.

[–] [email protected] -1 points 3 weeks ago

It's not necessary to expose the identities of the users. The age confirmation could happen via a password, PIN, or even a physical USB dongle. Tying such methods to a particular identity adds nothing to the age verification.

If that is not enough, then one would need a permanent, live webcam feed of the user. It could be monitored by AI, and/or police officers could make random checks.

Granted, one would have to make sure that not everyone behind the same router can use age-restricted services; eg with a VPN. That would let them assign connections to individual, anonymous adults. But I'd guess you could do that anyway with some confidence by analyzing usage patterns. Besides, information on who is in a home can also be found in other places such as social media or maybe company websites. So I do not think this is much new information.

But thinking about it, one could compartmentalize this.

The ISP only allows connections to whitelisted servers, including 1 or more government approved VPNs. The ISP refuses connection to these VPNs without age confirmation. The VPN provider does not need to be told the identity of the customer. There needs to be no persistence across sessions. The ISP need not know what sites are visited via VPN. While the VPN provider need not know about sites visited without.

If you do it that way, the ISP ends up knowing less than before.

Since both ISP and VPN servers and offices would be physically located in the country, one would have no problem enforcing prohibitions on data sharing, if desired by lawmakers.

Anyway, this is the only realistic approach in the whole thread. Everything else assumes that Australian law will be followed globally. And then the ISP still has all that usage data. Why not just use a blockchain...