He didn't write most of it. The stuff I donated to the collection is freely distributable (but not public domain). I suspect that someone else could put together their own collection.

...which would be more up to date, too. When I created a copy of the disk to send to NSA along with my second CJ request, I found I had to go back several versions of PGP to get the version of IDEA that had been printed in the book. That's the problem with books -- they're hard to update. Phil