On Sun, Jun 26, 2011 at 10:24 AM, Oleg Goldshmidt wrote:
>
> It's a tough problem. It is a lot more difficult than AV since you
> want to prevent essentially arbitrary data from leaking, not just data
> that may damage another machine.
I don't think preventing data leak is a problem here, or gen
On Sun, Jun 26, 2011 at 9:44 AM, Nadav Har'El wrote:
> A trivial (though
> perhaps suboptimal) way to do this is for that machine to export the document
> to PDF; Presumably this conversion will lose all invisible information,
I suppose a sophisticated attacker may, in principle, devise a way to
On Sat, Jun 25, 2011 at 9:58 PM, Orna Agmon Ben-Yehuda
wrote:
> 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.
Come to thin
On Sun, Jun 26, 2011, Orna Agmon Ben-Yehuda wrote about "Re: secure data
export":
> 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 steganogr
On Sat, Jun 25, 2011 at 11:33 PM, Oleg Goldshmidt wrote:
> Orna Agmon Ben-Yehuda 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
Orna Agmon Ben-Yehuda 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
On 25/06/2011 21:06, Shachar Shemesh wrote:
On 25/06/11 21:58, Orna Agmon Ben-Yehuda wrote:
I am trying to prevent a specific action of various possible
(imaginary?) malware, which attempt to export data as hitchhikers on
data which is exported anyhow. I do not assume the malware is trying
to a
On 25/06/11 21:58, Orna Agmon Ben-Yehuda wrote:
I am trying to prevent a specific action of various possible
(imaginary?) malware, which attempt to export data as hitchhikers on
data which is exported anyhow. I do not assume the malware is trying
to add itself to the CD, in addition to the da
On Sat, Jun 25, 2011 at 9:28 PM, Oleg Goldshmidt wrote:
> > The point of the additional file is to leave little room for anything
> else.
> > Regarding the FAT place: Assuming the CD ends up on an infected machine,
> or
> > falls into the wrong hands ( example: you want to make your client an
> o
> The point of the additional file is to leave little room for anything else.
> Regarding the FAT place: Assuming the CD ends up on an infected machine, or
> falls into the wrong hands ( example: you want to make your client an offer
> on a CD, but you do not wish to give the client info about othe
On Fri, Jun 24, 2011 at 4:54 AM, Shachar Shemesh wrote:
> **
> On 24/06/11 00:35, Orna Agmon Ben-Yehuda wrote:
>
> Hello all security experts,
>
> Hiya,
>
>
> I would like to export data from a machine on a business's internal
> network on a safe media, such that only the files I want exported a
On 23/06/2011 23:35, Orna Agmon Ben-Yehuda wrote:
Hello all security experts,
I would like to export data from a machine on a business's internal
network on a safe media, such that only the files I want exported are on
the media. Specifically, I consider the possibility that the machine may
alr
2011/6/24 Orna Agmon Ben-Yehuda
> Hello all security experts,
>
I'm not a security expert, however you raised my curiosity.
>
> I would like to export data from a machine on a business's internal network
> on a safe media, such that only the files I want exported are on the media.
>
[snip]
Th
On Fri, 24 Jun 2011 00:35:16 +0300
Orna Agmon Ben-Yehuda wrote:
> Hello all security experts,
>
> I would like to export data from a machine on a business's internal
> network on a safe media, such that only the files I want exported are on
> the media. Specifically, I consider the possibility t
On 24/06/11 00:35, Orna Agmon Ben-Yehuda wrote:
Hello all security experts,
Hiya,
I would like to export data from a machine on a business's internal
network on a safe media, such that only the files I want exported are
on the media. Specifically, I consider the possibility that the
machine
Hi Orna,
First, I'd like to make sure I understand the question. I normally do
it by rephrasing...
You have some human-readable, non-obfuscated plain text files you wish
to write to a CD and take the CD outside of some secure location. You
have 2 concerns:
1) Something else may be written onto t
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