[FEATURE] OpenSSH-certificate Support

[inferenceus]

Is your feature request related to a problem? Please describe.
I use OpenSSH certificates on my servers rather than bare public-keys. There are various advantages to this approach, including the ability to add expiry dates to, and revoke, certificates. This allows pinned authentications to servers, and vice versa, rather than having to trust them, while also automating the process.

Describe the solution you'd like
Support for OpenSSH certificates, allowing usage of them rather than forced bare-public-key usage. This could be implemented via an extra button on the main menu with the ability to import an OpenSSH certificate.

Describe alternatives you've considered
N/A

Additional context
N/A

[AlainKnaff]

Thanks for the suggestion.
Indeed, the JSch library that I use recently added support for OpenSSH certificates.
So this is definitively feasible, but not (yet) part of my short term plans.

[inferenceus]

Thanks for the suggestion. Indeed, the JSch library that I use recently added support for OpenSSH certificates. So this is definitively feasible, but not (yet) part of my short term plans.

@AlainKnaff Thanks for considering this. It isn't a critical feature, but it definitely would be nice and make it feasible to use this application across multi-user infrastructure; particularly infrastructure which uses a certificate-only approach, like mine.