As far as I am aware, there is no Cisco IOS command that would show the modulus length of an RSA key. (eg. 1024-bit or 2048-bit).
There is a command that shows the RSA key in full, but not it's length. Is there a way that the NCM could read that key and determine its modulus length?
Not sure if this is possible, nevertheless it would be extremely useful to be able to generate a report that shows all the keys length.