How to perform SSH RSA User Authentication
Cisco IOS SSH Version 2 (SSHv2) supports keyboard-interactive and password-based authentication methods. The SSHv2 Enhancements for RSA Keys feature also supports RSA-based public key authentication for the client and the server.
RSA based user authentication uses a private/public key pair associated with each user for authentication. The user must generate a private/public key pair on the client and configure a public key on the Cisco IOS SSH server to complete the authentication.
Info: http://www.ciscozine.com/2012/03/27/h...