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Re: [openpgp] Bug#931238: hot armor: please drop "Version: " header

Daniel Kahn Gillmor <dkg@fifthhorseman.net> Mon, 22 July 2019 13:27 UTC

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From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
To: Heiko Stamer <HeikoStamer@gmx.net>, openpgp@ietf.org
In-Reply-To: <9a2f6586-1bc3-9108-d166-bd83952dc7f4@gmx.net>
References: <87zhm1o0f7.fsf@fifthhorseman.net> <20190706133941.tw3znn74q4iseiyo@scru.org> <54525144-b7bf-fa79-c497-ca8fbf77f89d@gmx.net> <87tvby6nl7.fsf@fifthhorseman.net> <9a2f6586-1bc3-9108-d166-bd83952dc7f4@gmx.net>
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Date: Mon, 22 Jul 2019 09:15:33 -0400
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Subject: Re: [openpgp] Bug#931238: hot armor: please drop "Version: " header
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On Sat 2019-07-13 10:38:14 +0200, Heiko Stamer wrote:
> On 07.07.2019 at 14:22, Daniel Kahn Gillmor wrote:
>
>> totally agreed that this should be added, and i encourage you to send
>> text to the openpgp@ietf.org mailing list.
>
> Regarding the fixed encoding of a (sub)packet length I suggest the
> following approach (AFAIK it's used by most OpenPGP implementations):
>
> 	if (len < 192)
> 	{
> 		// one-octet length format
> 	}
> 	else if (len < 8384)
> 	{
> 		// two-octet length format
> 	}
> 	else
> 	{
> 		// four-octet length format with 0xFF prefix
> 	}

This looks reasonable to me, and i agree that it should be part of any
proposed draft aimed at minimizing divergence in generated output across
OpenPGP implementations.

    --dkg

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