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Sculptor Gives a Hint For CIA's Kryptos

omega_cubed writes "The New York Times reports that Jim Sanborn, the sculptor who created the wavy metal pane called Kryptos that sits in front of the CIA in Langley, VA, has gotten tired of waiting for code-breakers to decode the last of the four messages. 'I assumed the code would be cracked in a fairly short time,' [Sanborn] said, adding that the intrusions on his life from people who think they have solved his fourth puzzle are more than he expected. So now, after 20 years, Mr. Sanborn is nudging the process along. He has provided The New York Times with the answers to six letters in the sculpture's final passage. The characters that are the 64th through 69th in the final series on the sculpture read NYPVTT. When deciphered, they read BERLIN."

2 of 151 comments (clear)

  1. Re:I'd like to solve the puzzle, Pat by PolygamousRanchKid+ · · Score: 5, Insightful

    Germans are incredibly tolerant about their language; if you try to speak it they will lend helping hands. I guess they figure that if you have the courage to try to learn it, and speak it, you don't need to prove any valour beyond that. (German is not my first language).

    I have seen the film clip where Kennedy says, "Ich bin ein Berliner!", but all of the crowd knew what he wanted to say, and so it was no problem.

    --
    Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
  2. Re:just wondering by ledow · · Score: 5, Insightful

    Nope. The greatest fool can ask a question that the wisest man cannot answer.

    It's incredible easy to make a cipher so convulated and impractical (e.g. encode by the phase of the moon determined by the fourteenth character, then transpose all vowels, add up the number of strokes within each letter using the Arial font, multiply those numbers by the number 10 places ahead of it, then look those up on a ceasar cipher) that it's boring and uninteresting to decipher it and pretty much "impossible". Unfortunately, it also becomes incredibly useless as a cipher then because it becomes tedious to communicate using it, and the security of a cipher has nothing to do with its difficulty of encryption or decryption procedure - you'll probably find that a couple of supercomputers could find enough patterns in the above "cipher" that they could find the right answers without having to even KNOW the phase of the moon.

    The thing about mathematical ciphers is that the method is public and yet they are still incredibly difficult to decrypt. This isn't an interesting cipher, mathematically speaking, because the method is closed so it could be anything. All we have is some jumbled text and (presumably) a sensible answer that we're not privy to. It's more a children's puzzle than a cipher, just a very difficult one - because nobody actually uses this cipher to communicate (so the cipher can be unnecessarily complicated without actually being *secure*, the plaintext could well be complete junk, the message may even be erroneously encoded, and there's only a single - non-militarily-important - instance of an encoded text).

    In short - nobody cares. It's like the book-competitions where someone buries treasure and publishes a book which "gives the details" of where it's buried. It's pretty much chance if you find it or not because there is no requirement for the answer to be logical, practical or even decryptable. The one I saw, you had to draw a line from the eye of a character on each artwork-strewn page, through their index finger, to a particular letter in a word on the outside of the page border, then interpret those clues which narrowed things down to an entire field somewhere in the UK - the "winner" was the author's former-flatmate's girlfriend.

    The importance of a ciphered message is more related to its origin, the probability of it being an unintentional leak, the probability of it being militarily important, and other non-mathematical factors. Then, if you have the impetus, running it through a supercomputer with what little you know or (infinitely better) getting a couple more messages that use the same scheme and are likely to reveal commonalities. That's how we beat Engima. This is just a puzzle-book, and quite boring because it can actually just be gibberish and nobody would really care.