~]$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/anne/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/anne/.ssh/id_rsa.
Your public key has been saved in /home/anne/.ssh/id_rsa.pub.
The key fingerprint is:
xxx anne@ypoc

Il faudra envoyer la clé publique à l'endroit auquel on veut accéder.