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RE: RE: Cipher Tool
From: "Todd Towles" <toddtowles () brookshires com>
Date: Mon, 20 Dec 2004 08:23:49 -0600

Or you could go buy some of these and link them together to reach over a
distance.

The First Commercial Quantum Cryptography solution - encryption per
photon =)
 http://www.magiqtech.com/index.php

-----Original Message-----
From: full-disclosure-bounces () lists netsys com 
[mailto:full-disclosure-bounces () lists netsys com] On Behalf 
Of James Tucker
Sent: Wednesday, December 15, 2004 10:38 PM
To: richard capistrano
Cc: full-disclosure () lists netsys com
Subject: Re: [Full-disclosure] RE: Cipher Tool

Have you considered using secured network protocols on 
dedicated encryption hardware? or is that beyond the price point?

Any cipher algorithm would be theoretically implementable 
(providing the length of data is suitable). If you are 
looking for _real_ performance though then ciphering may not 
be what you want as there isn't any good cipher that is 
really overly fast fast (deliberate double).

There are other core pieces of the puzzle to be considered 
though, like are you going to be talking in a client less 
manner (i.e. is the client pre-configured or has the client 
never received secure comms
before?) Is there a socket/tunnel already running? What is 
the rough length of the data set (impact readability and 
suitability for encryption algorithms)? What is the 
performance restriction (i.e.
where is the bottleneck)? How secure do you need it, 
anti-fool, seconds, hours, years or millennial(might actually 
require more data storage than money can buy)?

I raised an eyebrow at the last portion of your mail, "Is 
there a freeware or software or information, I can check 
out?". This would suggest that you are looking to put another 
program somewhere mid-flow in a data pipe; thats not always a 
good option.

If you're really looking for speed and ease of implementation 
then something like a simple rotation cipher might work out 
for you, but this is going to be so poor a encryption that 
some cipher pro's could read it in its encrypted form. This 
is obviously no good if you're worried about credit card 
info, but is OK if it's just your girlfriend being a nosy ....... .


On Tue, 14 Dec 2004 00:23:41 -0800 (PST), richard capistrano 
<mikoc02 () yahoo com> wrote:
 
 

Hello,

  

  

We are looking for a tool that can actually cipher or hash a 
particular portion of a file so that it will not display the 
particular field of a file. This will be applied to the 
file so that 
when it travels the network, the confidential field in the 
file is not 
displayed in clear text. Due to performance issues, we can 
not simply hash the whole file.

  

Is there a freeware or software or information, I can check out? 
Thanks in advance.

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Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html


_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html


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