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Comment by radicalbyte | Hacker News Reader

ZKP are used in the covid vaccination passport systems for both The Netherlands and New Zealand.

Ours (I'm part of the NL team) is open source: https://github.com/minvws

Where can I read more about ZKP in the context of your project? I went through the repo but could not find anything related to ZKPin there.

The documentation isn't that great, but the implementation is here:

https://github.com/minvws/nl-covid19-coronacheck-idemix

We use IDEMIX to create a unique proof per display of the QR code. So you cannot track a person as they use their QR code (if you have control of a network of scanner apps).

That sounds, in theory, like a pretty cool use for ZKP. However, I'm skeptical how you fulfil the other requirements that vaccine QR codes generally have without also providing a workaround for tracking.

For instance, most vaccine QR codes are not considered valid by themselves, as I could simply share my QR code with my friend. So I need to present valid photo ID alongside the QR code.

Computerphile did a great YouTube video on ZKP: https://youtu.be/HUs1bH85X9I

I'm the author of one of the open source NZ vaccination passport libs. I'm pretty familiar with the specification and afaik I know theres no use of ZKP's. Its a fairly standard public/private key cryptography. Happy to be proven wrong though!

Here's the spec: https://nzcp.covid19.health.nz/ and our implementation https://github.com/vaxxnz/nzcp-js

I'm indeed wrong, I had understood from a discussion with someone involved in the project that it was so :) Just had a chat with my buddies at mattr who corrected me :)

I’m in NZ. Can you link the source for NZ using zero knowledge proofs? Very curious to read it thanks

Any chance you are looking for more members - at least on the web aspect?

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