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The Cipher Challenge - http://www.simonsingh.net/Cipher_Challenge.html
History of a code cracking competition. Challenge details, how it was solved, winners, essays and photo gallery. |
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Plus Magazine - Singh's "Code Book" Challenge Cracked - http://pass.maths.org.uk/issue13/news/codes/
"The £10,000 prize Singh offered for the winner of this "cipher challenge" has now been won by a team of five Swedish researchers." Article explains the challenge, how it was constructed, and what it took to solve it. |
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Code Book Cipher Challenge Solution Page - http://codebook.org/
Gives solution to Singh's Cipher Challenge. Includes the list of authors, the order of solutions, and the steps to create a team. In HTML, PDF and postscript format. |