[sitkack]

Yes.

The spec includes cryptographic signatures for the whole signal chain for "authenticity".

http://www.siliconch.com/authentication.html

http://www.usb.org/developers/presentations/USB_DevDays_Taip...

[opencl]

And companies have in fact used this to make their devices only work with their own brand of chargers. I know HP has at least, because I have one. Does a pretty great job of defeating the "universal" aspect of the Universal Serial Bus.

In addition to preventing the use of third party power bricks, it also makes all of those USB-C docks with power passthrough useless.

[TeMPOraL]

My god. I never thought I'd see the day they DRM power.

[noja]

I am genuinely shocked. This is definitely not widely known.