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To: Still Thinking
Bruce Schneier has a text book, Applied Cryptography. It was, and is, the best. It had code in it to show how to implement the various cryptographic algorithms. The book also came with a disk with the code on it.

At the time cryptography export restrictions as a munition prevented the disk from being exported. However the book could be exported since it was only text. Thus the government's reason for banning the disk assumes nobody in any foreign country knows how to type.

Karn sued over export of the disk. It was a thorn in the administration's side, and I believe led them to realize the export restrictions were stupid. Remember, this was also a time when US businesses had to ship lower-encryption products overseas, killing their ability to be competitive with foreign companies who could use the full encryption in their products. Karn thus incidentally did a lot for the US software business.

A related issue was Phil Zimmermann's Pretty Good Privacy. The Clinton administration hounded him for years because people had exported PGP. To show the idiocy, Phil published a book with the source, and foreigners scanned it in, compiled it and put it on the Internet. Thus you could download a legal version of PGP from a foreign source (IIRC, Finland was popular), but not from Phil here in the US since he couldn't publish it in a place where it could be easily downloaded to a foreign country without Clinton's goons nailing him.

196 posted on 06/08/2010 12:05:12 PM PDT by antiRepublicrat
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To: antiRepublicrat
Bruce Schneier has a text book, Applied Cryptography. It was, and is, the best. It had code in it to show how to implement the various cryptographic algorithms. The book also came with a disk with the code on it.

I actually have that book, and yes, it is very good.

271 posted on 06/11/2010 10:24:26 AM PDT by Still Thinking (Freedom is NOT a loophole!)
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