Moreover, there is a cottage industry of being an "expert" to testify for some of these technical issues. They are often experts in as much as they have been called before as "experts", even thought the industry they are supposedly explaining might consider them charlatans -- people who just know how to dress well and talk bullshit, but in a very convincing tone.
That's basically how I saw them trying to paint Diffie in this trial: by pointing out that he hadn't graduated from university, that he wasn't a professor, that he didn't even invent PKC!
It seems they managed to convince the jury at least.
When there are museums that consider you to have invented it, and you DID invent it (just perhaps were not the first, though that was not known at the time), it seems fair to say that you did.
After all, we consider that both Newton and Leibnitz invented calculus.
