Re: francois' comments and why RFC4474 not used in the field

Adam Roach <[email protected]>
Newsgroups gmane.ietf.sip
Message-ID <[email protected]>
Dan Wing wrote:
> Other methods, which do not establish media -- BYE, MESSAGE,
> etc. -- would receive signatures very similar to what RFC4474
> does.  Namely, some certain SIP headers are signed and, if
> present, the body is signed.
>    

You're proposing signing the entire body of MESSAGE requests?

But what if some intermediary, for policy reasons, wants to change the 
contents of a MESSAGE -- say, by redacting selected words the service 
provider feels are inappropriate -- without the consent of either party?

;-)

/a
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