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Date:      Tue, 14 Mar 2000 17:07:04 +1100 (EST)
From:      Sean Winn <sean@gothic.net.au>
To:        Chris Cook <ccook@tcworks.net>
Cc:        Leif Neland <leif@neland.dk>, freebsd-isp@FreeBSD.ORG
Subject:   Re: Is passwords send to auth webpages secure?
Message-ID:  <Pine.BSF.4.21.0003141703560.39160-100000@vampire.gothic.net.au>
In-Reply-To: <38CDD173.EEB690BD@tcworks.net>

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On Mon, 13 Mar 2000, Chris Cook wrote:

> Leif Neland wrote:
> > 
> > 
> > Now I have been asked if the passwords from browser to squid is sent in
> > cleartext, so it can be sniffed?
> 
> I have tried sniffing passwords like this before as a test, and they
> always showed up as scrambled (unreadable).  I am assuming that my
> browser (Netscape 4.6/FreeBSD) was using some sort of mild encryption to
> send the username/login.  More info on this would be neat, but you
> should invest in some switches anyways.  Hasto...

Basic authentication is base-64 encoded, which isn't exactly difficult to
descrypt. Effectively it's cleartext.

NTLM authentication uses challenge/response, but squid doesn't support that
(there were old patches for it available, but they were a work in progress,
and not ready for real use); the only browsers/proxies I know of that
support it are IE and MS-Proxy; I expect FrontPage when functioning as a web
client would support it as well.

> 
> -- 
> Chris
> 
> o----< ccook@tcworks.net >----------------------------------------o
> |Chris Cook - Technician  |  TCWORKS.NET - http://www.tcworks.net |
> |The Computer Works       |  FreeBSD - http://www.freebsd.org     |
> o-----------------------------------------------------------------o
> 
> 
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> 

-- 
Sean Winn
email: sean@gothic.net.au
All opinions valued at $0.02, and not subject to inflation.



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