A strong encryption ban would <i>not</i> make math into contraband. It might make implementations of some small subset of math into something that&#x27;s illegal under some constraints. SFAIK, you can encrypt away all you want so long as nobody needs it to comply with a court order or summons.<p>&quot;Computer security&quot; embraces that ELINT now includes hacking type activities. The most &quot;Dude, epic&quot; version is the STUXNET story.