I wonder if stego users will have to choose between uncrackable
encryption or undetectable data.
I don't think so. Replacing the low-order bits of a picture with
random noise (or an encrypted message) is silly - like you say, anyone
can find it easily. But there is a certain amount of free
The basic notion of stego is that one replaces 'noise' in a document with
the stego'ed information. Thus, a 'good' stego system must use a crypto
strategy whose statistical properties mimic the noise properties of the
carrying document. Our favorite off the shelf crypto algorithms do *not*
--- begin forwarded text
Date: Tue, 25 Jan 2000 18:05:39 -0500
From: Richard Lethin [EMAIL PROTECTED]
Organization: Reservoir Labs, Inc.
To: [EMAIL PROTECTED]
Subject: [Fwd: 1/28/00 C.S. Colloquium]
Sender: [EMAIL PROTECTED]
Reply-To: Richard Lethin [EMAIL PROTECTED]
--
Reservoir Labs, Inc.
At 10:45 AM 1/25/00 , Eric Murray wrote:
Real-To: Eric Murray [EMAIL PROTECTED]
Does anyone know the legal status of RC4 in the US?
I know that a cipher purporting to be RC4 was published on
Cypherpunks by Anonymous, and that various crypto packages
have RC4 or "EC4". My question is, has RSA
David Honig writes:
At 03:20 PM 1/25/00 -0500, Russell Nelson wrote:
I'm trying to do forward stego -- that is, publish some encrypted
steganographic document, with the idea that, once everyone has a copy,
*then* you reveal the key.
Fascinating, captain. Canna imagine why.
On Tue, 25 Jan 2000, Rick Smith wrote:
. . . .
For example, many stego implementations involve embedding data in the low
order bits of a graphical image. Those low order bits undoubtedly have some
measurably non-random statistical properties. Once we replace those bits
with data, the bits
If the picture was taken by an actual camera, the least significant
bits will be random due to the nature of the way CCDs work in the real
world. They might be biased, but it's not very hard to bias a
"random" data stream. You could have the sender look at the bias in
the
Eric Murray [EMAIL PROTECTED] queried the Listocracy:
Does anyone know the legal status of RC4 in the US?
I know that a cipher purporting to be RC4 was published on
Cypherpunks by Anonymous, and that various crypto packages
have RC4 or "EC4". My question is, has RSA taken anyone to
Forgive me if I'm missing the point here but I don't think the original
question was how to make steganography better and hide the message more
effectively (although that's certainly a valuable goal).
Sometimes it's important to hide the fact that a secret message exists. A
good guy in enemy
John Young [EMAIL PROTECTED] responded:
Your points are valid for the AIA document. However, in the
Navy document, Number 9, image 3, there is the phrase,
"Maintain and operate an ECHELON site."
I had missed that reference. A agree that the capitalization here is
consistent with a code name.
Up to 4 PM EST we've had no notice that the file has been "sealed."
There have been over 26,000 downloads and they are now going out at
600 per hour.
This is becoming picayune but:
I'm told that the court has now sealed Exhibits A and B of Hoy's
declaration. These are the DeCSS notes and the CSS scramble
code. However, the sealing applies only to the paper versions
and will prevent hardcopying.
Denying access to online versions will require
Rick Smith wrote:
It sounds like there are a number of interesting design questions. For
example, the sender and recipient must obviously share a secret key.
Why is that obvious? What's wrong with encoding with the recipient's
public key?
Cheers,
Ben.
--
SECURE HOSTING AT THE BUNKER!
Rick Smith wrote:
Rick Smith wrote:
It sounds like there are a number of interesting design questions. For
example, the sender and recipient must obviously share a secret key.
At 10:18 PM 01/26/2000 +, Ben Laurie wrote:
Why is that obvious? What's wrong with encoding with the
For example, it's possible that this email was written by a political
prisoner in a 3rd world country and he's used steganography to conceal a
message to his friends and family right here in these 3 paragraphs. My
question is, without prior agreement or access to an outside channel, how
are
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