"Speaking from an International Spy Museum stage, artist Jim Sanborn, who created the encrypted puzzle, said it has not been fully deciphered, as had been claimed, and shared tantalizing hints for pursuing the complete solution. Later in November Sanborn, age 79, will auction the solution to the fourth part of the sculpture, called K479 encrypted letters that start with OBKR."
"Sanborn also formally announced that a long-hinted-at K5 coded message will be released when K4 is solved. The new puzzle will be visible somewhere in a public space, Sanborn said. The new code will involve elements of the other puzzles and, like K4, will be 97 characters long. Both 97-letter messages will share some of the same coded words in the same position."
The Kryptos sculpture at CIA headquarters, installed in 1990, is a curved copper panel containing letters that form four coded messages. The fourth coded message, K4, is 97 letters long and begins with OBKR; it remains unsolved publicly. Journalists located a deciphered version of K4 within Smithsonian Institution archives but pledged not to release the solution. Jim Sanborn plans to auction ownership of the K4 solution in November and intends to brief the buyer on disclosure rights. A new related puzzle, K5, will be released in public after K4 is solved and will mirror some words and positions of K4.
Read at www.scientificamerican.com
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