Connecting to Your Linux Instance from Windows Using PuTTY
 
  1.     To generate an RSA key pair to work with version 2 of the protocol, type the following command at a shell prompt:   2.   ssh-keygen -t rsa   [pravesh@localhost ~]$ ssh-keygen -t rsa   Generating public/private rsa key pair.   Enter file in which to save the key (/home/pravesh/.ssh/id_rsa): pravesh   Enter passphrase (empty for no passphrase):   Enter same passphrase again:   Your identification has been saved in pravesh.   Your public key has been saved in pravesh.pub.   The key fingerprint is:   ed:5e:fb:5d:87:a2:12:ac:5d:98:1c:59:df:e3:81:1a pravesh@localhost.localdomain   The key's randomart image is:   +--[ RSA 2048]----+   |                 |   |          .      |   |         o . o   |   |        o.E o +  |   | ...