How does the drm software protection system work?

Question

DRM

Advise what to read about the device and the operation of drm systems. Everywhere there are only superficial aspects, I would like to study deeper, to write a diploma. Basically, I only stumble upon marketing or discussion of problems associated with the use of these systems, or already outdated technologies, but I would like to find algorithms for how the key generation or activation system works, the sdk themselves, in order to dig with them, preferably modern systems, like denuvo or those used by top firms. Where can I get such info and packages?

Answer 1

yes, just like bitcoins, certificates and any other encryption implementations: public and private key + validity check