3 ms·

DES encryption was once treated as munitions. https://en.wikipedia.org/wiki/Kerberos_(protocol)#History_and_development https://en.wikipedia.org/wiki/Kerberos_(

• rrix2 8y ago
  We’re the cryptographers who wrote it allowed to leave the country?
  • _jal 8y ago
    They were NSA employees and IBM engineers. There are no blanket prohibitions on travel for NSA folks, although I believe there are more or less 'don't go there' advisories about specific places. I also imagine there are folks there who know things that put them in special travel categories. I don't think the IBMers had any special conditions imposed on them.
    • rbanffy 8y ago
      I'd bet they are closely tracked from a certain distance and, whenever they buy a ticket or cross a border, someone gets an alert.