> the entire source code of PGP (yeah they put it in a book, don't know why) Because PGP used keys larger than 40 bits, which meant if was classified as 'munit

> the entire source code of PGP (yeah they put it in a book, don't know why) Because PGP used keys larger than 40 bits, which meant if was classified as 'munitions' (!) under US export regulations. Zimmerman got around that by publishing the source code as a book, export of which is protected under the First Amendment. You were supposed to OCR it... http://en.wikipedia.org/wiki/Pretty_Good_Privacy#Criminal_investigation http://en.wikipedia.org/wiki/Pretty_Good_Privacy#Criminal_in...