SASL can secure the login without encrypting the whole session. And most other things benefit more from signing than from encryption, though I'm not sure how much support for this there is.
That said, server software supporting SSH is getting common these days, so it might be a matter of just updating and/or reconfiguring the server. (It's difficult to make too general a statement about all servers though)
That said, server software supporting SSH is getting common these days, so it might be a matter of just updating and/or reconfiguring the server. (It's difficult to make too general a statement about all servers though)