IETF Logo Mail Archive

Re: Output of the discard keys design team

"Martin Thomson" <mt@lowentropy.net> Sat, 11 May 2019 02:24 UTC

Return-Path: <mt@lowentropy.net>
X-Original-To: quic@ietfa.amsl.com
Delivered-To: quic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CE65A120229 for <quic@ietfa.amsl.com>; Fri, 10 May 2019 19:24:28 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.701
X-Spam-Level:
X-Spam-Status: No, score=-2.701 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=lowentropy.net header.b=QTWqnF4t; dkim=pass (2048-bit key) header.d=messagingengine.com header.b=iXjopMF6
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0gmEpgAriAWJ for <quic@ietfa.amsl.com>; Fri, 10 May 2019 19:24:26 -0700 (PDT)
Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B07501201F0 for <quic@ietf.org>; Fri, 10 May 2019 19:24:26 -0700 (PDT)
Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id E4B3721FC1 for <quic@ietf.org>; Fri, 10 May 2019 22:24:25 -0400 (EDT)
Received: from imap2 ([10.202.2.52]) by compute1.internal (MEProxy); Fri, 10 May 2019 22:24:25 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lowentropy.net; h=mime-version:message-id:in-reply-to:references:date:from:to :subject:content-type; s=fm2; bh=xBBM5o1f6IjIeEooJJZcqvaAVdNsIgM xfmc3jWQOQ48=; b=QTWqnF4tYTI+JSFlL3JArFj2vWaXTSihWKX8ifUSqEWDqMe K051TODqfmg2C1c/c6i1a6WHIPYCquWwI3An/MtKMF4HMVrqDtCSZdm2BDXZkzuZ eDD+IFGniEkyqVxr/wB43mDPysGioE534iEnBHFid4aREYRPEhL7Zvc3ulUMZMt3 LwzO1yAORwkAh+N75ScG1hYYpvfWWcLJloeptNSh2u1GDt5nqCMZz78gtriMnPq7 mD0E21QNdqnqFNXpHmplNF71PO0eEaJOV1fhcpviBxJukoQT+p4mZ5djwyGt/gQU knm0RlCnHiFcf7Je34AyVUi+vbacF+e/dM+8yvQ==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=xBBM5o 1f6IjIeEooJJZcqvaAVdNsIgMxfmc3jWQOQ48=; b=iXjopMF65aTj2yqfaDqwUP 6gFbViG3xkr3BIKNFBoe67LiyhpbF1HHDCH+L020l0D1ChjLYQ5Jbgi+nujMct8H i2AcsTgwFJbhmawQR3+7d4/ri+pTFZG0WCvh/HMkEb7u9/rHkzndfwGwtSe7i592 BHPCEyqGSHS/4ZRcECLqa2H1por/Bn2oG2uiFTinPWIilTAJJKurIn30QEZc2jaX ug1DD+M0V0W/QwC/Js1GCl+Z8eJ+lBvKYEy8S+ynGCGbVZ1AZOFOBGVGkUtvO6fv 3EY1Qwh6RNLChCjSAduLaj2l55Zxs0v6Ox1hVGZrR8/PjZBifKiFT47L1TUqvrjw ==
X-ME-Sender: <xms:WTLWXOQR_88PCO2A5JDVWaXA9c9HYNhKClY4cbwZASAL_PQjj1X8CQ>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduuddrkeelgdeiudcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhepofgfggfkjghffffhvffutgesthdtre dtreertdenucfhrhhomhepfdforghrthhinhcuvfhhohhmshhonhdfuceomhhtsehlohif vghnthhrohhphidrnhgvtheqnecuffhomhgrihhnpehgihhthhhusgdrtghomhenucfrrg hrrghmpehmrghilhhfrhhomhepmhhtsehlohifvghnthhrohhphidrnhgvthenucevlhhu shhtvghrufhiiigvpedt
X-ME-Proxy: <xmx:WTLWXJSVfDoumJ_CVeU7suF8NIi2WdP6yu8nW5fD_QHi4cK3dTIrSg> <xmx:WTLWXEI_-XNk0ze-t7Np57lYACv9z5Ck6YnMZg6q6XitEV0XHWBBnQ> <xmx:WTLWXIH6g3irS9h43Eq3_f8_Vr51b6Ex-Z2a_O3YPYi5r7CkeM0-zA> <xmx:WTLWXKftkxxqyC6Ialue0obYOyeR-c0TFLtJ7lY4krKKgTJ7N0KYmg>
Received: by mailuser.nyi.internal (Postfix, from userid 501) id 404977C3DB; Fri, 10 May 2019 22:24:25 -0400 (EDT)
X-Mailer: MessagingEngine.com Webmail Interface
User-Agent: Cyrus-JMAP/3.1.6-449-gfb3fc5a-fmstable-20190430v1
Mime-Version: 1.0
Message-Id: <2026002a-c35b-4dcc-83a4-c7af19fc8369@www.fastmail.com>
In-Reply-To: <CAKcm_gM+pkXxvVymNFm1PCc=1EuyWYCUBH5nPJ_RLvSGo330kw@mail.gmail.com>
References: <CAPDSy+7hboMHiEJqxNfhnvpYK47JUyNfwPzoe8fqD9HB61hfqw@mail.gmail.com> <CAKcm_gM+pkXxvVymNFm1PCc=1EuyWYCUBH5nPJ_RLvSGo330kw@mail.gmail.com>
Date: Fri, 10 May 2019 22:24:25 -0400
From: Martin Thomson <mt@lowentropy.net>
To: quic@ietf.org
Subject: Re: Output of the discard keys design team
Content-Type: text/plain
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic/xhYqkN1bM-C6ukbNpZcmI_DE-Ic>
X-BeenThere: quic@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Main mailing list of the IETF QUIC working group <quic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic>, <mailto:quic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic/>
List-Post: <mailto:quic@ietf.org>
List-Help: <mailto:quic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic>, <mailto:quic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 11 May 2019 02:24:29 -0000

Yeah, I have to second Ian's praise here.  This looks easy, but David has done a good job here.

On Fri, May 10, 2019, at 20:26, Ian Swett wrote:
> Thank you for working through this with members of the design team and 
> for writing this up so nicely. The PR looks great.
> 
> *From: *David Schinazi <dschinazi.ietf@gmail.com>
> *Date: *Tue, May 7, 2019 at 5:25 PM
> *To: *QUIC
> 
> > Hi everyone,
> > 
> > The discard keys design team has reached consensus on how to move forward with discarding keys, and has produced a PR to modify the spec:
> > 
> > https://github.com/quicwg/base-drafts/pull/2673
> > 
> > In a nutshell, we leverage acknowledgments as an explicit signal that indicates that an endpoint is in a given state, and use that to allow the peer to make progress. We believe that this PR prevents the potential deadlocks discussed in issues #2214 and #2267.
> > 
> > Please let us know your thoughts in response to this email.
> > 
> > Thanks,
> > David

v2.23.0 | Report a Bug | By Email