Re: R: R: [Sip] a question about IETF draft location conveyance 09

On Nov 22, 2007, at 12:08 PM, daniel grotti wrote:

> Hi all,
> so why don't emphasize this point in the next draft, saying :  
> "Proxy server MUST not read messages with "recipient=endpoint"  
> paramenter setted".
> This is my point of you.
>
>

because from a security standpoint, this prohibition is meaningless.  
Intermediate nodes can and will read anything that's in plaintext,  
and SOMEBODY will come up with a rationale, in some context or  
another, for doing so.

And has been pointed out, doing so does not appear to create a  
compatibility problem. It doesn't break the protocol. It might defeat  
security-through-obscurity. It might be rude, or otherwise socially  
unacceptable. But those don't qualify for a MUST level protocol  
prohibition.

--
Dean

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