The Playfair cipher is an incredibLe code system that is both difficult to decrypt without a computer and easily solvable by hand. You might be familiar with the Cryptoquip in the comics section of a ...
The PlayFair DRM-cracking code for iTunes has been removed from SourceForge but is available on a server in India. Sounds like Apple may have made some legal threats. [Via Boing Boing] ...
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