I tried using ECDSA keys with the current stable version (6.45.6) of RouterOS and the import failed.
I guess it is not possible to use this key type in RouterOS, which is problematic for us.
OpenSSH supports ECDSA since version 5.7 which was released 2011.
Since ECDSA was implemented for certificates and ike2 in release 6.45.1 I am hopeful that this feature will be implemented for ssh as well.
Is there another way, except for using RSA keys, until this is added?
DSA keys are supported as well, but I guess you do not want to use these, no?
The forum has some threads asking for ED25519 keys, but Mikrotik did not give any reaction.