In order to enable SSH keys with 1 or more of your Cartika IaaS/Cloud Virtual Machines (VM's)
Please do the following
1) Navigate to your respective IaaS service within your portal
2) On the SSH Keys screen, select "Register Key"
3) Paste the Public Key and select "Add Key"
4) Navigate to the VM you want to work with and select the SSH keys icon
5) you will be prompted to reboot the VM and apply the key - press OK to complete the process (and your VM will be rebooted)