ego
PSI
ego | PSI | |
---|---|---|
1 | 3 | |
56 | 125 | |
- | 0.0% | |
4.0 | 5.2 | |
3 months ago | 22 days ago | |
OCaml | C++ | |
GNU General Public License v3.0 only | Apache License 2.0 |
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ego
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Ask HN: What are some 'cool' but obscure data structures you know about?
Shameless plug, I also maintain an OCaml implementation of egraphs (named ego) at https://github.com/verse-lab/ego
While the most popular implementation at the moment seems to be egg in Rust, I find that OCaml serves as a much more ergonomic environment for quickly prototyping out uses of egraphs in practice. As a bonus, ego also shares the same logical interface as egg itself, so once you've finalised your designs, you shouldn't have much trouble porting them to egg if you need the performance gains.
PSI
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Can a new form of cryptography solve the internet’s privacy problem?
There are other techniques that aren't generally included in the "Zero Knowledge Proofs" set of techniques that are perhaps more practical for general development.
For example, I fine private set intersection[1] as implemented by OpenMined a really useful primative a bunch of privacy enhancing applications can be built on top of.
My colleagues and I recently published a pre-print[2] showing how to use this for sharing locations you and another person have had in common, without being able to see other locations. The paper talks about a social network built around this but I also think there are useful applications in things like real-world games (scavenger hunts etc)
[1] https://github.com/OpenMined/PSI/blob/master/private_set_int...
[2] https://arxiv.org/abs/2210.01927
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Ask HN: What are some 'cool' but obscure data structures you know about?
I came here to say Golomb compressed sets except now I see it's part of the question!
They are used by default in the OpenMined implementation of Private Set Intersection[1] - a multi-party computation technique.
[1] https://github.com/OpenMined/PSI/blob/master/private_set_int...
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Is there a Private Set Intersection protocol where the server learns the length of the intersection?
I was using OpenMinded/PSI exploring some PSI implementations, but I would like a way for the server to know the intersection size. Say Signal wants to calculate the average number of users from one person's address book (or whatever).
What are some alternatives?
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