Re: ssh key authentication

[Kelly Martin <kel () securityfocus com>]

Jorge JJ wrote:
> When you want a ssh authentication by a public/private key. You must
> leave the public key on the server and the private key in the
> client... ¿how does the authentication work? ¿is the private key send
> to the server (ahhh!!!)? and the best question where i can find
> information about this... when i have this type of question where have
> i look?

Brian Hatch wrote some very good articles on this back in late 2004, and 
it still works the same today:

SSH Host Key Protection http://www.securityfocus.com/infocus/1806
SSH User Identities http://www.securityfocus.com/infocus/1810
SSH and ssh-agent http://www.securityfocus.com/infocus/1812

Using keys with SSH is a very good idea.

best regards,

kelly