To use Poseidon for UML you need a valid key. A key for Poseidon for UML is a small file with the file extension .key. The name of the key follows a pattern that makes it easy for you to identify what kind of key it is. It contains a string of characters that carries encrypted information. We have decided on a file-based key that contains a string of characters to encrypt information so that you don't need to retype a textual key, instead you store the file and direct the tool to it.
There are different types of keys. In this chapter we will explain the differences between these, how to get them, and what to do with them.
The Community Edition is delivered with an Interim Key so that you can immediately start working with it. To receive a Final Key, you are required to register. For information how to do this, read on in section Interim Keys.