Re: [quicwg/base-drafts] Added a word of caution before abandoning Initial packets (#3416)

ianswett <> Wed, 05 February 2020 09:40 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 8989E1207FE for <>; Wed, 5 Feb 2020 01:40:19 -0800 (PST)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -6.596
X-Spam-Status: No, score=-6.596 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_28=1.404, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] 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 Q__WC2fWgM5S for <>; Wed, 5 Feb 2020 01:40:17 -0800 (PST)
Received: from ( []) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id A41121207FB for <>; Wed, 5 Feb 2020 01:40:17 -0800 (PST)
Received: from ( []) by (Postfix) with ESMTP id F4055E02CE for <>; Wed, 5 Feb 2020 01:40:16 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=pf2014; t=1580895617; bh=koqei81TCpVomxxTRLsedber+AwwIK9s8g7EqUhZY68=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=VjGsxgYhA6e29qGBbruBl5dX/U6G90UQt+ROveDeDfQGpTTxpbskoFYrZb2FIkTMM vlMRAMiHgfZC8k40X2lF7Hz+aI1DBVCFy5HjtGwrczHEaX49K/eZNgNmSqW3NkYGYo XPJWkYHSe1ynDwkHTEKBhiAYj3rA9+0nP0JDTW6M=
Date: Wed, 05 Feb 2020 01:40:16 -0800
From: ianswett <>
Reply-To: quicwg/base-drafts <>
To: quicwg/base-drafts <>
Cc: Subscribed <>
Message-ID: <quicwg/base-drafts/pull/3416/review/>
In-Reply-To: <quicwg/base-drafts/pull/>
References: <quicwg/base-drafts/pull/>
Subject: Re: [quicwg/base-drafts] Added a word of caution before abandoning Initial packets (#3416)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5e3a8d80e42ee_48f73f954e8cd96c186813"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: ianswett
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: Wed, 05 Feb 2020 09:40:20 -0000

ianswett commented on this pull request.

> @@ -3700,7 +3700,9 @@ when it receives its first Handshake packet.  Though packets might still be in
 flight or awaiting acknowledgment, no further Initial packets need to be
 exchanged beyond this point.  Initial packet protection keys are discarded (see
 Section 4.10 of {{QUIC-TLS}}) along with any loss recovery and congestion
-control state (see Sections and 6.9 of {{QUIC-RECOVERY}}).
+control state (see Sections and 6.9 of {{QUIC-RECOVERY}}). This is safe
+because of the additional safeguards against loss of Handshake packets in

The reason Initial keys can be discarded is because the endpoint knows the peer has Handshake keys, so this new statement is confusing to me.

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