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Re: [openpgp] V5 Fingerprint again

"Robert J. Hansen" <rjh@sixdemonbag.org> Wed, 01 March 2017 21:01 UTC

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From: "Robert J. Hansen" <rjh@sixdemonbag.org>
To: 'Werner Koch' <wk@gnupg.org>
References: <CAMm+Lwju5i5xHt=ma6Ush4_4dfZNwOi2=2km+6Qja+sDbkvbxg@mail.gmail.com> <CADGaDpFoBt1=eZHxo4q=Yb24NYyy1sudFn_h=MTZE3_wiRVXJw@mail.gmail.com> <87lgsoah35.fsf@wheatstone.g10code.de>
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Date: Wed, 01 Mar 2017 16:02:05 -0500
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Subject: Re: [openpgp] V5 Fingerprint again
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> > 1) Should we deprecate SHA1 in signatures? (Or did we already?)
> 
> This would break all existing signatures for no good reason.  Instead a
new v5
> key format MUST NOT be used with signatures "weaker" than SHA-256.

Deprecation is not the same as obsoleting.  Deprecation doesn't break
existing signatures; it just says new signatures MUST NOT use SHA-1.

It sounds as if you're agreeing with the deprecation suggestion.  Or am I
badly misunderstanding something?

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