generate ssh keys

% ssh-keygen -t rsa
Generating public/private dsa key pair.
Enter file in which to save the key (~/.ssh/id_dsa): (just type return)
Enter passphrase (empty for no passphrase): (just type return or enter a phrase)
Enter same passphrase again: (just type return or enter a phrase)
Your identification has been saved in ~/.ssh/id_rsa
Your public key has been saved in ~/.ssh/id_rsa.pub
The key fingerprint is:
Some really long string
% 


once you have generated it, 
run "cat ~/.ssh/id_rsa.pub". That will output the public key






http://www.ece.uci.edu/~chou/ssh-key.html

https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2

https://help.github.com/articles/generating-ssh-keys