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Re: [Acme] Concerning alternative formats …

Felipe Gasper <felipe@felipegasper.com> Mon, 05 March 2018 21:50 UTC

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From: Felipe Gasper <felipe@felipegasper.com>
In-Reply-To: <5B3A59BB-3832-4F38-A281-81FBE5AA1887@ipifony.com>
Date: Mon, 05 Mar 2018 16:50:22 -0500
Cc: Martin Thomson <martin.thomson@gmail.com>, Richard Barnes <rlb@ipv.sx>, Logan Widick <logan.widick@gmail.com>, ACME WG <acme@ietf.org>, Jörn Heissler <acme-specs@joern.heissler.de>, Fraser Tweedale <frase@frase.id.au>
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To: "Matthew D. Hardeman" <mhardeman@ipifony.com>
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Subject: Re: [Acme] Concerning alternative formats …
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> On Mar 5, 2018, at 1:13 PM, Matthew D. Hardeman <mhardeman@ipifony.com> wrote:
> 
> Especially with CT logging being a pragmatic requirement, time-to-delivery for certificates is likely to increase (slightly) rather than decrease.

Quick point: the alleviation of polling would go for authz status as well as to certificate delivery.

A certificate order that has 10 domains needs to poll for the status of all 10 of those domains’ authorizations as well as the certificate issuance. “ACME/bidi” would remove all 11 of those needs to poll.

Thanks for those who have given this suggestion their consideration. I don’t mean to “gum up the gears” for the main ACME work, but as I’ve been writing ACME clients the polling stuff has stuck out to me like a sore thumb.

It’s worth noting, too, that concerns about overhead may be alleviated if we do get a usable WebSocket-over-HTTP/2 implementation. Or, maybe someone will expose an SCTP endpoint, or a raw TCP endpoint that implements a simple message-boundary layer. I think the question of pure-message, bidirectional transport is more relevant than a specific transport implementation.

-F

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