Kryptos - Sculpture at the CIA headquarters that continues to be of interest to cryptanalysts for its fourth passage that has yet to be deciphered
https://en.wikipedia.org/wiki/KryptosOpen linkView original on lemmy.worldhttps://en.wikipedia.org/wiki/KryptosOpen linkView original on lemmy.world
Still??? I heard about this in college when I tried computer science out. Wow!
Probably a one time pad, and thus cant ever be solved.
Wife has a bunch of those
NPR has done stories about this in the past:
https://www.npr.org/2010/11/22/131520768/-kryptos-sculptor-drops-new-clue-in-20-year-mystery