pubKeyCredParams[n].alg serialization issues

[StummeJ]

After upgrading Fido2 from 1.1.0 to anything 2.0.0 or above we're seeing an incorrect serialization of the publicKeyCredParams[n].alg values. I've seen some things about the type being serialized incorrectly to a number, but cannot find anything about the alg being serialized incorrectly as a string. I also noticed there were some changes to the alg to move it from a long to an enum.

New lib error:

New:

Old:

[aseigler]

I can't reproduce this. The strings coming out of the alg values are weird enough, but the dashes that are getting added in the middle are really bizarre. Not really sure where that is coming from.

[Binaryraja]

With this change, We are unable to call navigator.credentials.create. Exception occurs. The same code works with Nuget Package 1.1.0 where the pubKeyCredParams[n] is hardcoded.

Tested in
Microsoft Edge
Version 97.0.1072.69 (Official build) (64-bit)

[iamcarbon]

@Binaryraja Were you able to figure this out?