How to validate signed message using public key?

[matko238]

Hi,

there is no example how to validate signed message if we have public key? We would like to validate EU Digital Certificate (Covid pass).

[EskoDijk]

Here's an example command-line tool to validate a COSE_Sign1 object against a public key (taken from an X.509 certificate file):
https://github.com/EskoDijk/ot-registrar/blob/IOP15/src/main/java/com/google/openthread/tools/CoseValidator.java