The rules that DRM technology seeks are designed to be quick and simple, such as:
Is your subscription up to date?
Is the user in a valid location?
Has the user registered this device for use with their subscription?
Has time-based use expired?
When the set-top box or smart TV is told to play a particular movie, the DRM client on the device looks at the policies in the license to determine if it's satisfied . If so, the client device can access the encryption key c level executive list and use it to decrypt the movie, ultimately allowing it to be watched.
The license may also contain rules for time-based use, for example, a movie can be viewed for up to 48 hours before being disabled when purchased through a content store such as Google Play Movies & TV, or the movie can be downloaded to the user's device for viewing in an offline environment, such as on an airplane.
In a nutshell…
Simply put, Digital Rights Management (DRM) is what copyright holders and digital content providers now rely on to build a successful business model and be rewarded for their hard work.
DRM plays an important role in today's digital world. It educates users about copyright and intellectual property by clarifying what they can and cannot do with certain content. It also helps authors and owners of digital material protect their financial and creative investment in their work.