Slashdot Mirror
Steganography with Flickr
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."
Nothing to see here. Please Move along.
Not exactly a new idea, goverments have been paranoid of "Terrorists" using stego on places like ebay for triggers.
More interesting projects, though off topic slightly; a method of obscuring your network communications and resolving key issues with stego (though I think the project stopped)
http://www.m-o-o-t.org/
They is also much more interesting uses for stego. in files, hdd slack space and this nice little project 4c.
http://dione.ids.pl/~shykta/
4c (or fourcrypt) is a multiple-file steganography program inspired by Michal Zalewski's twocrypt (2c) program, designed to be "subpoena-proof". It supports mixing between one and eight files with independent keys. The files are architecture-independant (tested on x86 and UltraSparc).
"I disapprove of what you say, but I will defend to the death your right to say it." - Voltaire
Post Removed
I'm Sorry, the posting you just made is against the Slashdot posting terms.
We believe you are a terrorist trying to hide data within your non-conformist post text.
After a detailed analysis of the contents of your posting, the waveform coeficients do not conform to standard slashdot thinking, more precisely, your posting failed to contain the phrases "first post", "in soviet russia" or "hot grits".
Please remove the hidden message and try again.
liqbase
Saddam's Weapons of Mass Destruction have finally been found inside pictures! Call Fox STAT!
A couple of years ago newspapers and network news showed the cabin layout of a 747 shown inside the Mona Lisa, supposively used by terrorists. What supprised me was how little attention was payed to the fact that nobody was giving credit to Leonardo da Vinci for inventing the 747.
Woverly Harris Gooch, IV CTO American Fire and Bomb, LLC
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
Warning: this novel is a demanding read. It is a higher-brow---and markedly dystopian---treatment of the same themes as Neil Stephensen's Cryptonomicon. In writing it, Mr. Scholz seems to have received considerable help from insiders at the national laboratories.
With luck, the following link to Google Print will show you a sample page that is reasonably representative of the entire book.
http://print.google.com/print?id=kVP7pIA9TYUC&pg=P A382&lpg=PA382&dq=steganography&prev=http://www.go ogle.com/search%3Fclient%3Dsafari%26rls%3Den-us%26 q%3DRadiance%26ie%3DUTF-8%26oe%3DUTF-8&sig=-uyML9j p9G4JsUZOCa59fPI6YpM