Also noticed this and created an upstream report as well: https://bugs.kde.org/show_bug.cgi?id=485308

I merged the change by Werner to get the value from frontend.

Looks good. Remember to add ChangeLog-style entries for all affected files to the commit log message.

Yellow indicates a warning. In the old days we used yellow in too many cases and people barely got a green. This raised more user questioned than it was helpful. There is also a problem with accessibility if we overload colors too much.

This was done by Tobias.

For VSD I somewhat agree since this is the difference between a VD Compliant signature. For the community edition though level 2 is usually enough and should also be indicated as trustworthy. So I am currently in two minds about this.

In the current code, just for testing against the test vector in m https://datatracker.ietf.org/doc/html/draft-ietf-openpgp-pqc-02, there are specific value in the key combiner KDF.
Namely, the value 105 for fixedInfo is defined in the draft (and it will be changed).

Applied to master. If no problem will be found, I'll apply to 2.4 branch too.
Let's see.

Looks good

Fixed. Two examples:

Fixed.

@werner Please review the changes again. I think Tobias addressed your comments.