Git

[you@your-computer ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/you/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /Users/you/.ssh/id_rsa.
Your public key has been saved in /Users/you/.ssh/id_rsa.pub.
The key fingerprint is:
58:06:86:0c:83:5e:4e:ab:75:93:96:37:76:42:73:07 you@your-computer.local
The key's randomart image is:
+--[ RSA 2048]----+
| .oo .o  E.      |
|.  +o. + . .     |
|. + . + = .      |
| . + * O .       |
|  o o = S        |
| .               |
|                 |
|                 |
|                 |
+-----------------+
[you@your-computer ~]$