[pclmulqdq]

I didn't read this patent before making a sister comment, but looking through it, this one is actually really clear on exactly what is happening (which makes sense with everyone here saying "it's just DNS for data" - everything is obvious in hindsight) and relatively low on patent jargon.

A lot of patents give you a bunch of alternative implementations and component definitions, which can muddy the waters a bit. On the other hand, the figures can help you a lot.