On Fri, Apr 01, 2005 at 09:51:29AM +0200, [EMAIL PROTECTED] wrote:
> > Dialback prevents hostname spoofing. Servers are also required to
> > enforce the from address to make sure that it matches the username
> > with which the client authenticated.
> >
> > > Does someone know how to spoof a JID ?
> >
> > Um, we deliberately made that hard to do.
> 
> Great !! Another reason for users to prefer Jabber to MSN !!
> 
> But I'm working on a subject where I have to proove that we need tokens to
> authenticate the users who want to chat with our IM client (based on Jabber).
> For this reason, I'm looking for a way to spoof a client ID. Even if it's hard
> to do, I would like to know where I can find the description (or the source
> code) of the mechanism employed by a Jabber server.

It is difficult for *clients* to spoof from addresses. If you write a
component, it is trusted by the server and therefore has permission to
write from addresses without server enforcement.

/psa

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