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this post was submitted on 30 Nov 2024
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Programming
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Homomorphic encryption (zero knowledge cryptography) is a known solution to this problem.
https://crypto.stackexchange.com/questions/96232/zkp-prove-that-18-while-hiding-age
Doesn’t this assume the issuing agency has all employees who are morally sound and not leaking data, unnoticed by an internally badly designed system, which is designed by people who are out of touch? Most things like this are designed that way, irregardless of country .
I’m sure one can make it watertight but it’s so hard and still depends in trusting people. The conversation here is about one thing of a larger system. There are probably a hundred moving parts in any bureaucracy.
This is the understanding ANYWHERE. How do we know there aren’t back doors in our OS’s? We literally have no clue. We do THE BEST WE CAN using the clues we have.
Yeah, these things quickly boil down to the trusting trust thing (see Ken Thompson's Turing award lecture). You can't trust any system until you've designed every bit from scratch.
You gotta put your trust somewhere, or you won't be able to implement jack.
This isn't as limiting as it seems at first glance though. Sending pictures of a true one time pad cipher doesn't rely on the security of the transport or the camera. From there you can choose to make a compromise of convenience and get to things like Private key cryptography where the ciphers are done via basic xor arithmetic you can do by hand.