Together with the mutual authentication behavior, this behavior affects how clients can authenticate themselves to edge servers and how groups within namespaces are authorized to access topics. It transforms a source string of the value extracted from the client certificate and stored as a variable, either client Id or Authorized Group(s). It lets you generate a hash value based on the selected hash algorithm.

1. In the Property Configuration Settings section, click Add Behavior.
2. Search for and select the Variable Hash Transformation behavior.
3. Click Insert Behavior.
4. Find your newly added behavior in the Behaviors section.
5. Select the hash Algorithm.
6. Enter your Secret Key.
   Note: Ideally, it should be long enough to provide an adequate security.