The CIA Has Been Home to an Unsolved Puzzle for 35 Years. Its Creator Just Released the Final Clues.

The encrypted puzzle has stumped cryptanalysts for decades, and on the eve of an auction revealing the long sought-after ...
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Solution to CIA’s ‘Kryptos’ Puzzle to Be Auctioned Off

The puzzle’s designer, James Sanborn, has urged the solution’s buyer not to reveal it, but to keep it safe until the ...