Decrypting Kryptos

angkor writes "Kryptos is a sculpture located on the grounds of CIA headquarters in Langley, Virginia. Installed in 1990, its thousands of characters contain encrypted messages, of which three have been solved (so far). There is still a fourth section at the bottom consisting of 97 or 98 characters which remains uncracked."

Comments

Crack?

[theluckyleper]

Dynamite oughtta crack it...

Re:Crack?

[slAckEr Of dOOm]

Typical gamer - "if you don't understand it, blow it up"

I'll bet it says...

[mr_burns]

"Stop goofing off. Get back to work"

97 or 98?

[Anonymous Coward]

If you can't tell how many characters it has, no wonder it's so hard to crack.

Re:I have always been curious

[Anonymous Coward]

It depends on the code. Often it involves looking for patterns, knowledge of letter frequencies, a bit of luck, and a while lot of skill. It helps if you know the type of cryptography being used. For example, if there is a known algorithm being used, such as RSA, one can do a brute force attack and test every possible decryption key (a very computationally intensive task, but feasable for small, older keys). Since many codes are based upon "hard math problems" such as RSA whose security is derived from the fact that it is easy to multiply prime numbers, but hard to factor composite numbers into primes, some codes are broken by find fast solutions to hard math problems. This is kind of the idea behind Shor's Quantum Computer algorithm which allows one to quickly factor large integers and thus could, if implemented, completely screw over RSA.

Re:Is there a solution?

[ncurses]

of course not, it's just some random chars generated by the Arethusa cipher, seeded with the string COMSTOCK.

Plagiarism

[Osty]

From the Slashdot summary:

angkor writes "Kryptos is a sculpture located on the grounds of CIA headquarters in Langley, Virginia. Installed in 1990, its thousands of characters contain encrypted messages, of which three have been solved (so far). There is still a fourth section at the bottom consisting of 97 or 98 characters which remains uncracked."

And from the actual page:

Kryptos is a sculpture located on the grounds of CIA Headquarters in Langley, Virginia. Installed in 1990, its thousands of characters contain encrypted messages, of which three have been solved (so far). There is still a fourth section at the bottom consisting of 97 or 98 characters which remains uncracked.

So, unless angkor is the author of the page over at elonka.com, he's plagiarised the article for his summary. Now, I understand that this can be a difficult call to make, since the article is clearly cited. However, the language of the summary ("angkor writes ...") and lack of explicit citation ("the article says ...") leads one to believe that angkor is writing an original summary of the submitted article, which is clearly not the case.

Sadly, this is not the first time this has ever happened on Slashdot (in fact, it happens in nearly every posted article). Come on, people. If you're going to submit a story, either summarize the article in your own words or attribute your summary text to the article. And editors, pull your thumbs out of your asses and actually edit your site once in a while. In a case like this, it's pretty damned obvious that the article summary is just part of the first paragraph of TFA, and so rather than attributing the summary to the article submitter ("angkor writes ..."), use other language that makes clear the quoting ("angkor quotes from the article ...").