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Steganography with Flickr

Posted by CmdrTaco on from the you'll-just-have-to-look-harder dept.

yiangocy writes "Steganography is not something new, there have been techniques and available programs for hiding data in pictures/audio files for a long time now. However, one step further is using popular online photo sharing sites, such as Flickr in hiding your data, successfully."

1 of 126 comments (clear)

  1. Re:I'm against this by Ckwop · · Score: 5, Informative

    Rather than worry about trying to detect stegnography, any image posting service could just arbitrarily set all of the least significant bits of jpgs to "1" as part of the image posting process. It might slightly degrade the image, but it would also erase any potential encoded messages.

    Not really, the best stego packages use error correcting codes to help mitigate this kind of attack. Some stego packages don't work by using the LSB but by swapping adjacent pixels. The cleaning of the LSB would have no real impact on this type of stego.

    Simon