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On Sun, 8 May 2011 17:48:06 +0100 Roland Tarver wrote: > http://www.unixmen.com/news-today/1683-soon-secure-confidential-data-on-hdd-without-encryption-on-open-source-software-?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+unixmenhowtos+%28Unixmen+Howtos+%26+Tutorials%29 > > Sorry about the long URL. > > An open source project into Steganography - hiding information in > "plain sight". Might be of interest.... > > Some years ago I was partially involved with a project that used the > least significant bit of the bytes used to define a bitmap image. The > project would have used this least significant bit to "hide" data in > plain sight. > > Best wishes > roly :-) It is a very interesting field. To my mind, though, it always seems that you can only retrieve the information if you also have a copy of the original, unadulterated (image) data. I imagine there are ways of embedding extraction details into the same file, but surely that then means it is less 'secure'? Grant. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq