"XOR" as encryption probably refers to one-time-pad encryption, which is a very secure encryption strategy if done well, albeit often impractical. (Note: I'm

"XOR" as encryption probably refers to one-time-pad encryption, which is a very secure encryption strategy if done well, albeit often impractical. (Note: I'm not saying anything about this specific code, which I have not looked at) https://en.m.wikipedia.org/wiki/One-time_pad https://en.m.wikipedia.org/wiki/One-time_pad