Let's create unbreakable DRM

1. All media is encrypted executable code. For example, there are not true videos published, but actual instructions for drawing an image on the screen. Programs are likewise encrypted. Those instructions are encrypted with a streaming cipher public-private key encryption scheme and are decrypted in hardware.
2. The chips in charge of decoding images use the mechanisms of Xerox's self-destructing chips. Any would-be reverse engineer will just end up having his shit blown up.
3. Each chip is etched with a unique number that it's keys are derived from. The media publisher operates a service that the client hardware contacts with it's request, telemetry data, and it's encryption key. The service stores the media in an intermediate form that allows for efficient watermarking and encryption.

Boom, no more piracy or ad blocking ever.

>>20

going back in time and giving Hitler a super-Enigma machine.

Wouldn't have helped him much:

Though Enigma had some cryptographic weaknesses, in practice it was German procedural flaws, operator mistakes, failure to systematically introduce changes in encipherment procedures, and Allied capture of key tables and hardware that, during the war, enabled Allied cryptologists to succeed.¹.

_{1. https://en.wikipedia.org/wiki/Enigma_machine}