i think this would be quite useful, obviously for general signing and it is also used in signed git commits, if people are using dropbear to commit over SSH. i think all the algorithms and key parsing stuff is already here, it would just need to be assembled into a command. i was thinking a new binary called dropbearsign or something like that. OpenSSH has it and it quite well documented, so probably some inspiration can be taken from there.
obviously this is quite a big ask as a feature request, and i am more asking to see if it is something you would want in the project, if it is i would like to have a go at implementing it myself.
i think this would be quite useful, obviously for general signing and it is also used in signed git commits, if people are using dropbear to commit over SSH. i think all the algorithms and key parsing stuff is already here, it would just need to be assembled into a command. i was thinking a new binary called dropbearsign or something like that. OpenSSH has it and it quite well documented, so probably some inspiration can be taken from there.
obviously this is quite a big ask as a feature request, and i am more asking to see if it is something you would want in the project, if it is i would like to have a go at implementing it myself.