public keys to check COSE signatures

[simonh1000]

I'm trying to decode the certificates in Elm (compiles to JavaScript in the browser). I can read the data fine, but don't know where to look for

• instructions to check the signing of the data, although I can probably work that out;
• the public keys themselves.

any pointers?

[daniel-eder]

Hi @simonh1000
Regarding your questions:

• For working with the certificates please refer to the spec and to our sample implementations, e.g. https://github.com/eu-digital-green-certificates/dgca-verifier-service and https://github.com/eu-digital-green-certificates/dgca-verifier-app-android
• For the public keys you need to contact your national health authority, see also eu-digital-green-certificates/dgc-participating-countries#10 for a discussion on the topic