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Re: [ietf-dkim] [Technical Errata Reported] RFC6376 (4926)

"Murray S. Kucherawy" <superuser@gmail.com> Fri, 10 February 2017 16:30 UTC

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From: "Murray S. Kucherawy" <superuser@gmail.com>
Date: Fri, 10 Feb 2017 08:29:18 -0800
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To: Barry Leiba <barryleiba@computer.org>
Cc: John Levine <johnl@taugh.com>, DKIM Mailing List <ietf-dkim@mipassoc.org>
Subject: Re: [ietf-dkim] [Technical Errata Reported] RFC6376 (4926)
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On Tue, Feb 7, 2017 at 10:25 AM, Barry Leiba <barryleiba@computer.org>
wrote:

> >>Murray, Tony, or someone else: Can you independently check that these
> >>examples need the extra space in order to be verified correctly?
> >
> > Murray did that for us a decade ago -- it's one of the test cases that
> opendkim uses.
>
> Yes, but the point is: did Murray (or anyone) extract the text *from
> the published RFC* and use that as input?  That is apparently what
> Simon did, which resulted in this report.
>

It looks to me like this was some loss of precision in the transition from
RFC4871 to RFC6376.  The former has six spaces, and the latter has five.  I
very likely didn't change my test suite in between, or re-test the examples
in RFC6376 before it shipped.

-MSK

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