Re: [Tails-dev] steghide

2020-11-08 Thread Daniel Kahn Gillmor
On Sun 2020-11-08 09:24:13 +0100, intrigeri wrote:
> I would fully agree with this line of reasoning if the requested tool
> (steghide) provided a nice UX for folks who are not particularly
> tech-savvy. Unfortunately, it's a CLI tool. So it seems to me that
> using steghide is harder, for most of our target users, than
> installing it by hand (which one can do without using a terminal).

I'm embarrassed to say that i hadn't looked into the usability of
steghide itself when i wrote that response.  I fully agree with
intrigeri that any steganography tool should be usable by a "normal"
computer operator before we consider its default inclusion in an
end-user-focused OS like Tails.

   --dkg


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Re: [Tails-dev] steghide

2020-11-08 Thread intrigeri
Hi,

Daniel Kahn Gillmor (2020-10-27):

> On Mon 2020-10-26 08:39:06 +0100, intrigeri wrote:
>> At this point of the conversation, I would recommend users for whom
>> this matters a lot to install their preferred steganography tool
>> by hand (without Additional Software) whenever they need it, so that
>> it leaves no traces and such attackers are left with no clue
>> about potential steganography usage, and which tool could be used.
>
> A counterargument would be that if tails were to include it by default,
> any tails user *could* use it without needing to do any extra work (or
> even to figure out how to install it by hand "so that it leaves no
> traces", which is not necessarily a simple job, as i'm sure everyone who
> works on Tails knows).

I would fully agree with this line of reasoning if the requested tool
(steghide) provided a nice UX for folks who are not particularly
tech-savvy. Unfortunately, it's a CLI tool. So it seems to me that
using steghide is harder, for most of our target users, than
installing it by hand (which one can do without using a terminal).

> I'm a bit dubious about steganography anyway, so i don't really have a
> side i'm strongly aligned with in this question.  But i'll say that the
> thing that Tails has done (and continues to do) is to make an OS where
> the user *doesn't* need to know all kinds of fancy details to hide their
> tracks.  That's a real contribution, and if we think that steganography
> is a useful part of that toolkit, then it seems like having sensible,
> usable steganography tools easily available is sort of in the same vein.

This makes sense to me. I would certainly approach this conversation
very differently if a *usable* steganography tool is proposed :)

Cheers!

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Re: [Tails-dev] steghide

2020-10-27 Thread Daniel Kahn Gillmor
On Mon 2020-10-26 08:39:06 +0100, intrigeri wrote:
> At this point of the conversation, I would recommend users for whom
> this matters a lot to install their preferred steganography tool
> by hand (without Additional Software) whenever they need it, so that
> it leaves no traces and such attackers are left with no clue
> about potential steganography usage, and which tool could be used.

A counterargument would be that if tails were to include it by default,
any tails user *could* use it without needing to do any extra work (or
even to figure out how to install it by hand "so that it leaves no
traces", which is not necessarily a simple job, as i'm sure everyone who
works on Tails knows).

That doesn't really tell the attacker who is concerned about
steganography *whether* steghide is in *use* in a given system, and i'd
imagine any attacker who suspects steganography is in use on a tails
system would guess that the approaches available in the debian archive
are a reasonable thing to try anyway.

I'm a bit dubious about steganography anyway, so i don't really have a
side i'm strongly aligned with in this question.  But i'll say that the
thing that Tails has done (and continues to do) is to make an OS where
the user *doesn't* need to know all kinds of fancy details to hide their
tracks.  That's a real contribution, and if we think that steganography
is a useful part of that toolkit, then it seems like having sensible,
usable steganography tools easily available is sort of in the same vein.

--dkg


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Re: [Tails-dev] steghide

2020-10-26 Thread intrigeri
Hi,

anon via Tails-dev (2020-10-25):
> Would it be possible to add steghide as tails default package ?
> https://packages.debian.org/buster/steghide
>
> If the goal is to hide stuff (the persistent storage is not hidden),
> I think it gives clues to attackers (who got access to persistent
> storage) where to look next if this package can be seen as
> "additional software".

I hear this argument.

Have you considered this possible rebuttal:

  If we include steghide by default, then an attacker who is familiar
  enough with Tails to be aware of Additional Software will surely be
  aware of the presence of steghide, and thus will have an almost as
  strong clue that it could be worth looking for data hidden with
  steghide, instead of data hidden using another of the several
  steganography tools available in Debian.

?

At this point of the conversation, I would recommend users for whom
this matters a lot to install their preferred steganography tool
by hand (without Additional Software) whenever they need it, so that
it leaves no traces and such attackers are left with no clue
about potential steganography usage, and which tool could be used.

Cheers!
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[Tails-dev] steghide

2020-10-26 Thread anon via Tails-dev
Hello

Would it be possible to add steghide as tails default package ?
https://packages.debian.org/buster/steghide

If the goal is to hide stuff (the persistent storage is not hidden), I think it 
gives clues to attackers (who got access to persistent storage) where to look 
next if this package can be seen as "additional software".

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Re: [Tails-dev] Steghide

2019-06-25 Thread u
Hi Damian,

On 24.06.19 19:58, Damián Chaban wrote:
> I was wondering whether you could add steghide to the next version. It's
> compatible with Debian and I think it would fit in tails since it's used to
> hide sensitive files. It's not that big of a deal but it would be nice to
> have it there.

Thanks for the suggestion. We do not want to bloat Tails too much for
everyone, however, you can use our Additional Software Feature to
install this package automatically every time you boot Tails:
https://tails.boum.org/doc/first_steps/additional_software/index.en.html#index4h2

Cheers!
u.
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[Tails-dev] Steghide

2019-06-24 Thread Damián Chaban
I was wondering whether you could add steghide to the next version. It's
compatible with Debian and I think it would fit in tails since it's used to
hide sensitive files. It's not that big of a deal but it would be nice to
have it there.
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