The authentication process is modular. It is theoretically possible to create an authentication app and configure Xtraction to use it. That authentication app would be responsible for interacting with HP OO to authenticate the user and then pass the relevant information back to Xtraction.
I know it CAN be done. I just don't know the details of how to do it myself. I have asked if there is any documentation on the process and will let you know what I find out. However, I suspect that there is not any formal documentation on this process.