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RE: compare-jfk-sigma.txt





On Tue, 11 Dec 2001, Andrew Krywaniuk wrote:

> > BTW, there is another reason not to go for a "sign message 1
> > and message
> > 2" as in IKEv2: if you do that then the security of the
> > protocol depends
> > on what exactly you sent in these messages.
> 
> When it says "sign messages 1&2" in IKEv2, I would hazzard a guess that this
> only applies when you are not using stateless DoS protection. When you are
> using stateless DoS protection then you sign messages 3&4 instead.

This is correct for IKEv2.
But Angelos correct observation, to which I added the above, 
was in the context of a protocol that does not have an optional round of
DoS protection but rather includes this protection already in the
4-message protocol. 

Hugo

> 
> -------------------------------------------
> There are no rules, only regulations. Luckily,
> history has shown that with time, hard work,
> and lots of love, anyone can be a technocrat.
> 
> 



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