About this interactive
A zero trust network splits access into a data plane and a control plane.
The subject, a user or device, asks for a resource. In the data plane, the policy enforcement point stands between them: it catches the request, passes it to the control plane, and then opens or closes the path when it is told.
The control plane is the policy decision point, and it has two parts. The policy engine holds the rules on what is allowed and decides whether this subject gets this resource. The policy administrator carries that decision to the enforcement point, telling it to open the session or shut it.
One correction to the video: it says the policy administrator gives the yes or no. In NIST SP 800-207, which defines these components, the policy engine makes the decision (grant, deny or revoke) and the policy administrator acts on it by instructing the enforcement point.
To sort a card, ask whether the job is guarding the path, deciding, or passing the decision on.
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