Re: [quicwg/base-drafts] Don't allow use of AEAD_AES_128_CCM_8 (#2029)

janaiyengar <notifications@github.com> Thu, 22 November 2018 01:30 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7A7F9130E61 for <quic-issues@ietfa.amsl.com>; Wed, 21 Nov 2018 17:30:20 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.46
X-Spam-Level:
X-Spam-Status: No, score=-9.46 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.46, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
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 J_U7dIMbAc6K for <quic-issues@ietfa.amsl.com>; Wed, 21 Nov 2018 17:30:18 -0800 (PST)
Received: from out-3.smtp.github.com (out-3.smtp.github.com [192.30.252.194]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 69DBA130E5E for <quic-issues@ietf.org>; Wed, 21 Nov 2018 17:30:18 -0800 (PST)
Date: Wed, 21 Nov 2018 17:30:17 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1542850217; bh=tfcK8UGglyj9zvowF67ZgYK8iYcOh5U7h8cFZZQntUg=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=NTy6H1NaK938R/TVxI2afdCv9+h/VgGQ8pBEOzVkIYSYwzJmaXdxWInJ34hQDpZNt O044k97sZ5+JUPVagGOlkUjv4OVtUQ919iqdL2ZMYUafTPwzqOEPnhHN17ht/7tjua hUfwkw2bljYMKAZKAzS9wDeGkGAtnBWn+56DJdcg=
From: janaiyengar <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab978c312d8d0b298a83c9e2844353f7127b51946e92cf00000001180dc8a992a169ce16d3575c@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/2029/review/177478269@github.com>
In-Reply-To: <quicwg/base-drafts/pull/2029@github.com>
References: <quicwg/base-drafts/pull/2029@github.com>
Subject: Re: [quicwg/base-drafts] Don't allow use of AEAD_AES_128_CCM_8 (#2029)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5bf606a97da8c_222c3fdedf8d45c01919db"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: janaiyengar
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/ykjCmXmnVFnCuuuj-OspM5Yt7oo>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 22 Nov 2018 01:30:21 -0000

janaiyengar commented on this pull request.



> @@ -780,9 +780,12 @@ connection ID in the client's first Initial packet (see {{initial-secrets}}).
 This provides protection against off-path attackers and robustness against QUIC
 version unaware middleboxes, but not against on-path attackers.
 
-All ciphersuites currently defined for TLS 1.3 - and therefore QUIC - have a
-16-byte authentication tag and produce an output 16 bytes larger than their
-input.
+QUIC can use any of the ciphersuites defined in {{!TLS13}} with the exception of

@kazuho @martinthomson : I trust your judgement here, so I won't push. It's still not clear to me why disallowing is an issue. Don't mind me though.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/2029#discussion_r235579854