Re: [Seamoby] [issue30] How to handle bad MN's authorization Token?

Hi,

is your concern message tampering between pAR and nAR ?
If so, that should apply to all contexts. I think we address that
by saying the routers SHOULD have SAs.

Regards,

-Rajeev

Nakhjiri Madjid-MNAKHJI1 wrote:

> Rajeev,
>
> I don't recall whether there was a message authentication procedure between
> the pAR and nAR, if there is none, and the pAR can't verify the authorization
> token, then we may open the door to DoS attacks on the pAR. So responding to
> nAR may have bad consequences...
> If there is no message authentication between nAR and pAR, while you are expecting
> the MN to authenticate itself to pAR (to me this is half way solution), then the
> pAR should ignore the request.
>
> Madjid
>
> -----Original Message-----
> From: seamoby-admin@ietf.org [mailto:seamoby-admin@ietf.org]On Behalf Of
> Rajeev Koodli
> Sent: Monday, December 08, 2003 1:14 PM
> To: Seamoby CTP Issues
> Cc: seamoby@ietf.org
> Subject: Re: [Seamoby] [issue30] How to handle bad MN's authorization
> Token?
>
> John Loughney SEAMOBY-Issues wrote:
>
> > New submission from John Loughney <john.loughney@nokia.com>:
> >
> > In case nAR requests the transfer by a CTR message, the pAR must verify
> > the MN's authorization token. If this token is unvalid, what do we do ?
> >
> > Possible solutions:
> >
> >  - nothing ? the pAR does not answer to nAR.
> >  - pAR indicates the error to nAR:
> >         * In the CTD message.
> >         * In a error message which could carry error information.
> >
>
> pAR MUST respond to nAR with an appropriate error.
> nAR SHOULD convey the result to the MN.
>
> -Rajeev
>
> >
> > others ?
> >
> > ----------
> > category: Editorial
> > document: draft-ietf-seamoby-ctp-05.txt
> > messages: 39
> > nosy: jloughney
> > priority: Should Fix
> > status: No Discussion
> > title: How to handle bad MN's authorization Token?
> > _____________________________________________________________
> > Seamoby CTP Issues <ctp_issues@danforsberg.info>
> > <http://danforsberg.info:8080/draft-ietf-seamoby-ctp/issue30>
> > _____________________________________________________________
> >
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