5 ms·
I do think there is some potential in the idea of people proving they are at face-to-face events (signing each others' zero-knowledge tokens) and then timing/pl
by dane-pgp 4y ago
I do think there is some potential in the idea of people proving they are at face-to-face events (signing each others' zero-knowledge tokens) and then timing/placing those events such that someone can't be in two places at once.
However, doing graph-based Sybil detection is already a hard problem[0], and trying to create an infallible algorithm that also works using homomorphic encryption is maybe pushing beyond the boundaries of known technology, unfortunately.
[0] https://dl.acm.org/doi/10.1145/2492517.2492568 https://dl.acm.org/doi/10.1145/2492517.2492568
- justincormack 4y agoIt would still be easy to have more tokens than people in this setup, you could choose which of your tokens to present, or pass some tokens around. So it is hard to guarantee there is a 1:1 correspondance. Which could be a good thing, but also doesn't work for some of the cases that want 1:1, like giving people a universal basic income where you don't want them to create fake people.