Because, as a user, what do you do if you see "invalid object" you think that something is wrong with your data instead of trying to type the passphrase again.

As I understand it after the p12 decryption the output is just tried to be imported. With the wrong passphrase this is just garbage and can lead to different errors.

I've uploaded my testcerts to: https://heinecke.or.at/div/testzertifikate.tar.gz.gpg

Nice. The way with KS_GET and assuan is much better then I thought about using a temporary home and a --locate-key

While testing I noticed that another requirement was to hide the advanced button. I have added this myself.

Ingo: Exactly we have the problem that we don't compile build tools before building for the target. So we take the build tooling like kconfig_compiler from the system we compile on. This means that we compile with the tooling from debian buster. Except for Qt which handles stuff like that directly and builds for example moc and the other tools correcly for the build system first.

Ui, Kudos to you for seeing that possibility in Boost Graph and applying that. *Thumbs up*

Quick gen key is only used for the keygen in GpgOL and KMail. Kleopatra itself uses the old batch generate interface.