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How could digitial age verification be possibly implemented with privacy in mind? (programming.dev)
submitted 3 weeks ago by onlinepersona@programming.dev to c/programming@programming.dev
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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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[-] eyeon@lemmy.world 10 points 3 weeks ago

All I can think of are some variations of you trusting a service to validate your id and give you a token that just asserts your id has been validated.

But it's still not really privacy preserving because it relies on trusting both parties to not collaborate against your privacy. if at some point the id provider decides to start keeping records of what tokens were generated from your id, and the service provider tracking what was consumes with that token, then you can still put it all back together.

[-] phlegmy@sh.itjust.works 1 points 3 weeks ago

That's when you add an extra ~~point of failure~~ validator.
Server 1 generates a token for server 2 to validate.
You send the token to server 2, who validates and generates you a token for server 3. Then finally server 3 validates the token and grants/denies your access.

The more nodes you have across different countries, the harder it is for the last server to discover your identity.

Definitely not without its flaws, but I wonder if a decentralised node setup similar to the tor network could work.

[-] AnUnusualRelic@lemmy.world 2 points 3 weeks ago

Could we add a blockchain somewhere? They're really good with the investors.

[-] phlegmy@sh.itjust.works 2 points 3 weeks ago

We can, but blockchain is old technology.
We should use an LLM to create and verify the tokens.

[-] AnUnusualRelic@lemmy.world 1 points 3 weeks ago

Oh, right, I haven't been keeping up it seems.

this post was submitted on 30 Nov 2024
127 points (99.2% liked)

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