<div dir="ltr"><br><br><div class="gmail_quote">On Sat, Jun 25, 2011 at 11:33 PM, Oleg Goldshmidt <span dir="ltr"><<a href="mailto:pub@goldshmidt.org">pub@goldshmidt.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class="im">Orna Agmon Ben-Yehuda <<a href="mailto:ladypine@gmail.com">ladypine@gmail.com</a>> writes:<br>
<br>
> The OCR idea is indeed nice. However, it is only good for small<br>
> amounts of data, or where the accuracy is not so important (English<br>
> texts). It is not so good for Hebrew or data (numbers), not to<br>
> mention binary data.<br>
<br>
</div>I thought you said the data you wanted to export was in plain text<br>
files that someone could read and verify (for some definition of) that<br>
the information in them is what it is supposed to be. This would imply<br>
relatively small amounts of easy to parse data. I tried to think how<br>
such simple files could be used by an attacker to transmit additional<br>
unauthorized messages.<br>
<br>
If you go binary (e.g., images) then an attack (of steganographic<br>
type, at least) becomes so much easier, and I am not sure you can feel<br>
safe without some trusted checksums for the files you wish to<br>
export. I assume that, unlike AV, there will be no know signatures to<br>
look for even if you know in advance what the contents of leaked data<br>
are (the hidden message may be encrypted, etc.).<br>
<font color="#888888"><br>
--<br>
</font><div><div></div><div class="h5">Oleg Goldshmidt | <a href="mailto:pub@goldshmidt.org">pub@goldshmidt.org</a><br>
</div></div></blockquote></div><br>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.<br>
<br><br clear="all"><br>-- <br>Orna Agmon Ben-Yehuda.<br><a href="http://ladypine.org">http://ladypine.org</a><br>
</div>