On Sat, Jun 25, 2011 at 11:33 PM, Oleg Goldshmidt <p...@goldshmidt.org>wrote:
> Orna Agmon Ben-Yehuda <ladyp...@gmail.com> writes: > > > The OCR idea is indeed nice. However, it is only good for small > > amounts of data, or where the accuracy is not so important (English > > texts). It is not so good for Hebrew or data (numbers), not to > > mention binary data. > > I thought you said the data you wanted to export was in plain text > files that someone could read and verify (for some definition of) that > the information in them is what it is supposed to be. This would imply > relatively small amounts of easy to parse data. I tried to think how > such simple files could be used by an attacker to transmit additional > unauthorized messages. > > If you go binary (e.g., images) then an attack (of steganographic > type, at least) becomes so much easier, and I am not sure you can feel > safe without some trusted checksums for the files you wish to > export. I assume that, unlike AV, there will be no know signatures to > look for even if you know in advance what the contents of leaked data > are (the hidden message may be encrypted, etc.). > > -- > Oleg Goldshmidt | p...@goldshmidt.org > I am currently thinking about text, but If the text contains lots of numbers, then I cannot trust the person to recognize the errors by reading the file. Oleg - I did not consider steganographic methods in my original mail, before you raised the issue. -- Orna Agmon Ben-Yehuda. http://ladypine.org
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