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Politech is the oldest Internet resource devoted to politics and technology. Launched in 1994 by Declan McCullagh, the mailing list has chronicled the growing intersection of culture, technology, politics, and law. Since 2000, so has the Politech web site.
Peter Honeyman and Niels Provos from UMich's Center for Information Technology Integration have successfully extracted a hidden image from a sample JPEG image. That sample JPEG was featured in a recent ABC News report about steganography: http://www.politechbot.com/p-02623.html No, the image wasn't created by bin Laden & com, but it's an interesting demonstration nevertheless. I dislike sending out attachments, so I've placed the extracted image here: http://www.politechbot.com/docs/stego-trophy.jpg Below message forwarded with permission. -Declan ******* Date: Tue, 09 Oct 2001 20:08:25 -0400 From: Niels Provos <provos@citi.umich.edu> Subject: first steganography trophy Ducan Campbell, author of an interesting article for telepolis, informed Peter and me about the ABC coverage concerning steganography. Here is part of his message: During the broadcast (transcribed here at the end), Mr Hosner displayed a jpeg image which can be found at http://www.wetstonetech.com/sovereigntime.jpg. It is also attached to this mail. He asserts that it contains a steg image of a B52. Peter suggested to use my stego tools on it. No problem: $ stegdetect sovereigntime.jpg sovereigntime.jpg : jsteg(***) $ stegbreak -tj -f wordlist sovereigntime.jpg Loaded 1 files... sovereigntime.jpg : jsteg(abc) Processed 1 files, found 1 embeddings. Time: 1 seconds: Cracks: 1156, 1156.0 c/s The secret key is "abc." And the hidden message is an image of an aerial view of a military airport. I attached it. Actually, this is the first real hidden message that we have found. Niels. ------------------------------------------------------------------------- POLITECH -- Declan McCullagh's politics and technology mailing list You may redistribute this message freely if you include this notice. Declan McCullagh's photographs are at http://www.mccullagh.org/ To subscribe to Politech: http://www.politechbot.com/info/subscribe.html This message is archived at http://www.politechbot.com/ -------------------------------------------------------------------------
