Re: [quicwg/base-drafts] Output of the discard keys design team (#2673)

David Schinazi <> Sat, 11 May 2019 19:42 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id B81351200FF for <>; Sat, 11 May 2019 12:42:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -6.393
X-Spam-Status: No, score=-6.393 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_24=1.618, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id ve9kVXHbXiRw for <>; Sat, 11 May 2019 12:42:04 -0700 (PDT)
Received: from ( []) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 0F08F1200DB for <>; Sat, 11 May 2019 12:42:04 -0700 (PDT)
Date: Sat, 11 May 2019 12:42:03 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=pf2014; t=1557603723; bh=ingClrhvYj2emYiho3VQjoP6S/+R91KjoHF7gAchyXI=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=Sc09X7J5TDjpvaDAgJq9HDRGEL31fbYcAFJfDa/D/OXmpOYZcRWcqAOJIe7SdyLAV rRRIm4eAgVUSRZkqwyJelcDz4X+ZGVuxTnT4dSt4GJJ+HILPCREu7BVyqVL91CxkE0 tGG+hpzj2tRGnmRH57wEXX1gOfIBjYUJ48bjNj/Y=
From: David Schinazi <>
Reply-To: quicwg/base-drafts <>
To: quicwg/base-drafts <>
Cc: Subscribed <>
Message-ID: <quicwg/base-drafts/pull/2673/review/>
In-Reply-To: <quicwg/base-drafts/pull/>
References: <quicwg/base-drafts/pull/>
Subject: Re: [quicwg/base-drafts] Output of the discard keys design team (#2673)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5cd7258b1041f_5af33fdb084cd95c1927a4"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: DavidSchinazi
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
Archived-At: <>
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Sat, 11 May 2019 19:42:06 -0000

DavidSchinazi commented on this pull request.

> +ack-eliciting frames, such as PING, which will cause the handshake to be
+confirmed when they are acknowledged.
+### Discarding 0-RTT Keys
+Clients SHOULD discard 0-RTT keys as soon as they install 1-RTT keys, since
+they have no use after that moment.
+0-RTT and 1-RTT packets share the same packet number space, and clients do not
+send 0-RTT packets after sending a 1-RTT packet ({{using-early-data}}).
+Therefore a server MAY discard 0-RTT keys as soon as it receives a 1-RTT
+packet.  However, due to packet reordering, a 0-RTT packet could arrive after
+a 1-RTT packet.  Servers MAY temporarily retain 0-RTT keys to allow decrypting
+reordered packets without requiring their contents to be retransmitted with
+1-RTT keys.  Servers MUST discard 0-RTT keys within three times the Probe


You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub: