Oh, the dataglyph is a nice idea. I'm currently working on stego using homoglyph chracters from Unicode. Check out my twitter feed to see what I mean @irongeek_adc. Using characters that look alike, I can also encode 1s and 0s. Code to come shortly. I also thing Robin Wood is working on his end on something similar, and I'm sure his code will be better than mine. :)
Tｈis ｌine iｓ ａ tｅst ｓtrｉng to seｅ ｉｆ gmａｉl ｗｉｌl ｌeｔ mｙ ｓtegｏ thｏｕｇｈ. Ｔypｉｎg iｔ aｇaｉｎ ｓo I ｈave ｍｏre covｅｒ teｘｔ． Tｈｉs ｌinｅ iｓ ａ ｔesｔ stｒｉnｇ ｔo see if gmail will let my stego though. Thanks, Adrian On Tue, Feb 23, 2010 at 5:10 AM, subzer0girl <[email protected]> wrote: > A little late replying :) Are you talking about dataglyph ? > http://microglyph-intl.com/english/html/dataglyphs.shtml. or maybe > http://en.wikipedia.org/wiki/Microdot microdot > > -sandy > > > On Wed, Jan 27, 2010 at 8:57 PM, Michael Douglas <[email protected]>wrote: > >> Jim you hit the nail on the head... you can be VERY creative with how >> you hide bar codes. >> >> I'm unable to find the example, but I saw a freaking amazing one that >> was done as background element... but before you yawn... it was >> hidden as shadows to someone's hair! I can't believe I can't find >> this... grr. (any cloud source help?) >> >> I'm sure there's other good examples to be found too. >> >> >> - Mick >> >> >> On Wed, Jan 27, 2010 at 11:56 AM, Jim Halfpenny <[email protected]> >> wrote: >> > If you do not require an optical scanner then I guess a barcode could >> look a >> > lot less like a traditional black and white one, so making it harder to >> > detect with the naked eye. If you divide each bar into a %age of the >> image >> > width and use the largest RGB component value then you could have a >> > multi-colour barcode with some tolerance to resizing. Shrinking is >> obviously >> > going to reduce the amount of information and may be lossy but >> enlargement >> > ought to be OK. >> > >> > Jim >> > >> > 2010/1/27 Adrian Crenshaw <[email protected]> >> >> >> >> Bar codes could work, but I want only the computer to see the stego, >> not a >> >> human. If I use a barcode, won't it show to the user? >> >> >> >> Thanks, >> >> Adrian >> >> >> >> On Wed, Jan 27, 2010 at 10:47 AM, Rob Fuller <[email protected]> >> wrote: >> >>> >> >>> Agreed about the EXIF data, but are you only talking about binary >> >>> steganography? You can hide barcodes in images pretty simply that >> >>> would survive resizing just fine. Also, are you talking human or >> >>> computer legible stego? Peoples choice of stego is highly dependent on >> >>> message size,message contents, repetition, and placement. >> >>> >> >>> -- >> >>> Rob Fuller | Mubix >> >>> Room362.com | Hak5.org | TheAcademyPro.com >> >>> >> >>> >> >>> >> >>> On Wed, Jan 27, 2010 at 7:42 AM, Jim Halfpenny < >> [email protected]> >> >>> wrote: >> >>> > Image metadata may survive (EXIF, copyright strings), it really >> depends >> >>> > on >> >>> > how the program manipulating the image handles the image and >> metadata >> >>> > parts >> >>> > of the file. Chances are if the hidden data is in the image data >> then >> >>> > it >> >>> > will not survive resizing, changes to colour deptt, colour maps etc. >> >>> > >> >>> > Jim >> >>> > >> >>> > 2010/1/27 Adrian Crenshaw <[email protected]> >> >>> >> >> >>> >> Hi all, >> >>> >> Does anyone know of any image based steganography that survives >> >>> >> resizing of the image? I'm looking into using blind drops, but many >> >>> >> sites >> >>> >> alter images that they post. >> >>> >> >> >>> >> Thanks, >> >>> >> Adrian >> >>> >> >> >>> >> _______________________________________________ >> >>> >> Pauldotcom mailing list >> >>> >> [email protected] >> >>> >> http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> >>> >> Main Web Site: http://pauldotcom.com >> >>> > >> >>> > >> >>> > _______________________________________________ >> >>> > Pauldotcom mailing list >> >>> > [email protected] >> >>> > http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> >>> > Main Web Site: http://pauldotcom.com >> >>> > >> >>> _______________________________________________ >> >>> Pauldotcom mailing list >> >>> [email protected] >> >>> http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> >>> Main Web Site: http://pauldotcom.com >> >> >> >> >> >> _______________________________________________ >> >> Pauldotcom mailing list >> >> [email protected] >> >> http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> >> Main Web Site: http://pauldotcom.com >> > >> > >> > _______________________________________________ >> > Pauldotcom mailing list >> > [email protected] >> > http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> > Main Web Site: http://pauldotcom.com >> > >> _______________________________________________ >> Pauldotcom mailing list >> [email protected] >> http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom >> Main Web Site: http://pauldotcom.com >> > > > _______________________________________________ > Pauldotcom mailing list > [email protected] > http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom > Main Web Site: http://pauldotcom.com >
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