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 <provosat_private> 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/ -------------------------------------------------------------------------
This archive was generated by hypermail 2b30 : Wed Oct 10 2001 - 10:34:17 PDT
