[secfirstmd]

This is a clever idea that I feel has lots of uses, not just sex tapes.

[mseebach]

It has indeed. It's more commonly known as "DRM".

[mwambua]

I agree. I'd be pleasantly surprised if this isn't patented already.

[Thrillington]

This is too general (and likely obvious to a skilled practitioner) an idea to be patented.

[Ironchefpython]

> This is too general (and likely obvious to a skilled practitioner) an idea to be patented.

I think you mean that this is too obvious an idea to NOT have been patented.

[ycmbntrthrwaway]

https://en.wikipedia.org/wiki/Secret_sharing