Convert JWK Key pair to Multikeys. This function decodes the JWK keys, finds out which binary key it encodes
and converts the key to the multikey versions depending on the exact curve.
Note that the code does not check (yet?) all combination of the JWK pairs where they would be erroneous, only
those that would lead to error in this cose. E.g., it does not check whether the x (and possibly y) values
are identical in the secret and private JWK keys.
Works for ecdsa (both P-384 and P-256), and eddsa.
Convert JWK Key pair to Multikeys. This function decodes the JWK keys, finds out which binary key it encodes and converts the key to the multikey versions depending on the exact curve.
Note that the code does not check (yet?) all combination of the JWK pairs where they would be erroneous, only those that would lead to error in this cose. E.g., it does not check whether the x (and possibly y) values are identical in the secret and private JWK keys.
Works for ecdsa (both P-384 and P-256), and eddsa.