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Re: [IPsec] #117: Hash and URL interop

Tero Kivinen <kivinen@iki.fi> Wed, 25 November 2009 11:55 UTC

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Date: Wed, 25 Nov 2009 13:54:59 +0200
From: Tero Kivinen <kivinen@iki.fi>
To: Yaron Sheffer <yaronf@checkpoint.com>
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Subject: Re: [IPsec] #117: Hash and URL interop
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Yaron Sheffer writes:
> Resending. There may be value in other URL methods, just maybe, but
> OTOH they would confuse developers and add security issues.

I still reiterate that I do not think we can add "MUST NOT" for other
URL methods, as that would be change that can make existing
implementations non-conforming (if they happen to send some other url
methods).

We have been in other cases careful not to make changes that could
make currently conforming implementations non-conforming, so I think
this should be similar case.

Btw, our implementation only sends http urls for now.

> To improve interoperability, allow only the "http" URL method. The
> current text (end of sec. 3.6) implies that any method is allowed,
> although HTTP MUST be supported. 

I still think the current text mandating one method (MUST for http)
provides good enough interoperability. I do not see nede to change
this.

See my previous comment about this:
http://www.ietf.org/mail-archive/web/ipsec/current/msg04987.html
-- 
kivinen@iki.fi

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