There are different ways to provide security to your Red Cloud instances. The two main steps that go into creating an instance are key-pair and security group creation. By modifying these two steps you can provide greater security to your instance. In this webpage, we will go over recommended security practices for your purposes.
Recommended Key-Pair Security Practices
The recommended way to use key pairs is through a password-protected key pair. The instructions to do so are at OpenStack_Key_Pairs_Test#Creating_a_Password-Protected_Key_Pair_.28Recommended.29.
You can also create a key-pair using the OpenStack GUI, and the instructions are found here: OpenStack_Key_Pairs#Creating_a_Key_Pair_.28using_OpenStack.29