Responder's nonce when 3-way (Re: KINK issue list)

At Thu, 20 Jan 2005 11:04:48 +0900,
"KAMADA Ken'ichi" <[email protected]> wrote:
> 
> [*] When 3-way, is responder's nonce MUST or SHOULD? (section 4.3 and 7.3)
> 
> 	Sec 4.3 and 7.3 use SHOULD and MUST respectively regarding when the 
> 	nonce should be used.  If the circumstances they're describing are 
> 	different, that's okay, but if so, I missed it on first reading.
> 	(Ken Raeburn)

They are talking the same situation and the requirement levels should
be aligned.  I think SHOULD is appropriate because non-returning
responder's nonce does not break interoperabilities.

-- 
KAMADA Ken'ichi <[email protected]>