Thank you for the hint, but this is unrelated I believe - both my keys are identified as "application/octet-stream" by xdg-mime.
But I just discovered that it seems to be related to DSA keys in seahorse in general. I was not able to generate a DSA key with ssh- keygen or puttygen which would be accepted by seahorse. I can generate a DSA key in seahorse, which then gets listed properly. However, if I remove that key and try to re-import a copy of it, I get the "Invalid file format" error message from seahorse. Steps to reproduce: 1. Generate a SSH-key in seahorse (encryption type: dsa) 2. Enter passphrase; key is now listed under "My Personal Keys" 3. Backup the just generated key: cp ~/.ssh/id_dsa* /some/where 4. Delete the key in seahorse 5. Import the backuped key: File > Import => Error Message: "Invalid file format" Seahorse version is 2.26.1, running on Ubuntu Jaunty. -- import failure: Invalid file format https://bugs.launchpad.net/bugs/372608 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to seahorse in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs