Cryptography is Hard

I love stories like this – http://www.theregister.co.uk/2011/03/22/ba_jihadist_trial_sentencing/ Briefly stated a group of would be terrorists rejected all suggestions that they use professionally developed cryptography and went ahead and developed their own. They assumed that because the existing cryptography was known to western “infidels” that it would be less secure than something they invented on their…

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Hiding Files in Plain Sight

Earlier in the week Vicki Davis posted a list of interesting sites on her blog that included one titled “How to hide files in JPEG pictures.” It’s an interesting little scheme that basically involved hiding one file (a compressed ZIP or RAR file) at the end of a JPEG file. This is not encryption by…

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Coding Up A Coded Message

I love codes and ciphers. As a kid I loved to play with simple substitution ciphers. Since I like these sorts of applications anyway I was happy to see at post on the Visual Basic team blog called Sshhh… it’s a secret (Matt Gertz) I love the story of how Matt used a code as…

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