IIRC cryptography has been classified under munitions: https://en.wikipedia.org/wiki/Export_of_cryptography_from_the_United_States#Cold_War_era https://en.wiki

IIRC cryptography has been classified under munitions: https://en.wikipedia.org/wiki/Export_of_cryptography_from_the_United_States#Cold_War_era https://en.wikipedia.org/wiki/Export_of_cryptography_from_th... Not sure how that'd interact with 2nd amendment issues (but it did come into conflict with the 1st).