4 ms·They banned certain branches of math during the cold war, it can be done.by Drakim 2y agoThey banned certain branches of math during the cold war, it can be done.jerry80 2y agoSuch as?Drakim 2y agoAll non-trivial encryption algorithms. https://en.wikipedia.org/wiki/Crypto_Wars https://en.wikipedia.org/wiki/Crypto_Wars