> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On 
> Behalf Of Tomasz Wolniewicz
> Sent: Tuesday, July 13, 2004 21:30
> To: [EMAIL PROTECTED]
> Subject: EAP-TTLS proxying
> 
> 
> I hope this is not a totally stupid question. 
> Suppose a user [EMAIL PROTECTED] wants to access the network at org-2 by
> authenticating at org-1 via the proxy mechanism.
> Suppose we want to use PAP-TTLS. 
> It would seem natural that the proxying is done on the basis 
> of the outer
> identity and the tunneled data is never revealed to the proxy server
> at org-2.

Yes that's exacly how it should be.

> Unfortunately our tests seem to show that the 
> server at org-2 needs
> to get the user data, including the password.

Very weird.... I have that same scenario and password AND inner username
is never revealed. Because that information is tunneled on a secure TLS
tunnel and encapsulated on a EAP packet. The 1st server (that acts as a
proxy) just see some anonymous username an EAP-Message , and some more
stuff (Message-Authenticator; etc...) but never the real username and
password. The org-2 server CAN'T open a TLS connection to get access to
the "critit information": user+pass!!! If that happen that's no longer a
"secure connection" :)

> Is it possible to configure things in the secure way? Of course, the
> servers need to trust each other, but some trust is one thing 
> and seeing
> passwords in plain text is another. I realise that other forms of
> authentication, which do not transmit passwords will not have 
> that problem.

That's the way things are suposed to be.... Only the authentication
server has access to user+pass....
Can you send the config? We have a cookbook for freeradius (is all in
portuguese but the configuration part is in "native english") at:
http://www.fccn.pt/index.php?module=pagemaster&PAGE_user_op=view_page&PA
GE_id=199&MMN_position=140:4:90

You are welcome to download, try and comment it off course.
Contributions are most welcome!

Luis Guido

> Yours
> Tomasz
> 
> -- 
> Tomasz M. Wolniewicz    
>        [EMAIL PROTECTED]        
> http://www.uni.torun.pl/~twoln
> 
> Uczelniane Centrum 
> Informatyczne   Information&Communication Technology Centre
> Uniwersytet Mikolaja Kopernika     Nicolaus Copernicus University,
> pl. Rapackiego 1, Torun               pl. Rapackiego 1, Torun, Poland
> tel: +48-56-611-2750     fax: +48-56-622-1850       tel kom.: 
> +48-693-032-576
> 
> - 
> List info/subscribe/unsubscribe? See 
> http://www.freeradius.org/list/users.html
> 


- 
List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

Reply via email to