> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
> Henry Sinnreich
>
> Voice enabled chat rooms (such as iChat, Jabber, etc.), social networks,
> blogs, media web sites and web based customer support are emerging
> communications where DERIVE will just work fine. Note the potential that
> DERIVE can be basically protocol independent, though I hope it will first
> be used by SIP.

I'm confused by that comment.  Are we talking about the same DERIVE draft?
Doesn't it depend on SIP dialog identifiers to check anything?

If you're abstracting DERIVE as a higher level concept than SIP, as a "check 
this guy is who he claims to be", then this isn't some new concept.  It's been 
done for years.  For example in online form filling out, when the web server 
sends an email to the claimed address, with a URL link in the email (with an 
embedded cookie) that once clicked tells the server that the form is being 
filled out by someone at that address.  Or what some humans do when their 
credit card company calls them, and they say "I'll call you back at the number 
on the card".  Or what SPF or uRPF do, in a passive way.

-hadriel
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