IETF Logo Mail Archive

Re: [TLS] Is stateless HelloRetryRequest worthwhile? (was Re: TLS 1.3 Problem?)

Michael D'Errico <mike-list@pobox.com> Thu, 01 October 2020 03:35 UTC

Return-Path: <mike-list@pobox.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 806983A0994 for <tls@ietfa.amsl.com>; Wed, 30 Sep 2020 20:35:08 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=pobox.com header.b=QOAruelB; dkim=pass (2048-bit key) header.d=messagingengine.com header.b=ELVP7hNH
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 IsHxPYyNvagZ for <tls@ietfa.amsl.com>; Wed, 30 Sep 2020 20:35:07 -0700 (PDT)
Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5A86D3A09AC for <tls@ietf.org>; Wed, 30 Sep 2020 20:35:06 -0700 (PDT)
Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 277B55C0552 for <tls@ietf.org>; Wed, 30 Sep 2020 23:35:06 -0400 (EDT)
Received: from imap21 ([10.202.2.71]) by compute4.internal (MEProxy); Wed, 30 Sep 2020 23:35:06 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pobox.com; h= mime-version:message-id:in-reply-to:references:date:from:to :subject:content-type; s=fm1; bh=2nSFWHLedf+4o2209MsRTLlEu30jF5q a91r9vMFIPbk=; b=QOAruelBU1WEzmkvAV7pscKOZwHPyFOAro56jy+Dv6l6yOy dulkZIkqOfsOjk6pk2Jaa1TjVQzndr7VotlpRINqu2zI+yPnI3L/4GK8Kk1cf72/ VAwQSiHXdLaJf+r3FqK2xtGO709lsZGzXJ6FfJJzOSqZFf1e6j+WhUC7Y1Nf9iee fhzwLFGPvBNBsqWesiN+NXC5xtYvQKl7djYYsoUtgau0VVaAyuYrTA8e1NlLKEHZ rzCMzGLZfCYXlkdYlvCrrRq41VMi7IsFFHYCg7oYu7n9dqFfZBlRnSDehTXD+Sif megbiosOgCeB2lBe4kp/u0kksTTeQp49YSPd70g==
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=fm3; bh=2nSFWH Ledf+4o2209MsRTLlEu30jF5qa91r9vMFIPbk=; b=ELVP7hNHCQWTdWN+3hYldd 5qpbEKsmfPMQ6kmVy85iFwtC/lf1jsd0wdOEXDvzfL1Aha2b8dpPtOFxGvmnCxLO ecoVofVNmlI5dI9qk/7QzRgLB5VGbKMAS8GBBOnUCfqmQK9EpVzl9qG1DGTIk0sz A7g1za8heaCT/pOJjvIzB+fI8498LGf4Ag7X0C6Frb4R/o0XUMKb5NH5u13aqg2t 9zcfNwuW4ddAfl/G9XOo3IkI3XxMqrlTNjN/dGMrndrD+BwwbBpAjNkCXQ8MYkh3 oK/RssFUqwVVKNhX8pA3eKowk2ta/VxwW53Ll1sUwDCX1crmrks+xKwHdaYFpgBA ==
X-ME-Sender: <xms:aU51X6oNliJW_XE2eTfWlQbrJfxrsLBwFVGLFX9_akpyKeLvIDZtdg> <xme:aU51X4qp2NYCKzQ0n_WypRNopQdlbVUYGvpP2nfQoVAvd4yKg9RxCp49YJP1yUAFy ofXIkIeATSs5LTbGg>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrfeefgdejgecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhepofgfggfkjghffffhvffutgesthdtre dtreerjeenucfhrhhomhepfdfoihgthhgrvghlucffkdfgrhhrihgtohdfuceomhhikhgv qdhlihhsthesphhosghogidrtghomheqnecuggftrfgrthhtvghrnhepleduteffiedvhe egledtheelffekleeftdehleekgeehhfffkeegleekkedukeeunecuvehluhhsthgvrhfu ihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepmhhikhgvqdhlihhsthesphhosg hogidrtghomh
X-ME-Proxy: <xmx:aU51X_ODKhH8WMKIKGBRXbCI9aDnvmMaOYNWzlwPgg8MjcSEFf5i7Q> <xmx:aU51X57sjSSt3TQ42MhS85jeJtULEx2-g9i_T7SvmN4dQ7imsmqqng> <xmx:aU51X55373QE0UQp2-S0CnwU3dShg73C0sabNKY-PCT41RLAWWGRxQ> <xmx:ak51X7HDtsNTktrGtFAhsQyrLSWM2N_sYa1SK5mZu61SlWDoLGVYSw>
Received: by mailuser.nyi.internal (Postfix, from userid 501) id 831F6660069; Wed, 30 Sep 2020 23:34:57 -0400 (EDT)
X-Mailer: MessagingEngine.com Webmail Interface
User-Agent: Cyrus-JMAP/3.3.0-382-ge235179-fm-20200928.002-ge2351794
Mime-Version: 1.0
Message-Id: <bc6251b7-681f-407a-9e30-dc2a430edeaa@www.fastmail.com>
In-Reply-To: <ABC80E3E-4C18-4290-B13E-50EDC129566B@akamai.com>
References: <0c31f2d6-5f8e-2fd6-9a1a-08b7902dd135@pobox.com> <AM0PR08MB37164F2D0E0CE5FB6D62D461FA350@AM0PR08MB3716.eurprd08.prod.outlook.com> <1c7e2f31-8a9e-4bd8-9e80-ab18ebeb609f@www.fastmail.com> <CACsn0cmbDz3ML8o5moAacqfXqYQo-Hqi53XQL6UoGYcZBwy-Mg@mail.gmail.com> <96777977-7707-4311-9876-ca3d53f57f3e@www.fastmail.com> <9b2bb784-5895-bc8a-fae5-1c2056972f97@pobox.com> <eaace566-4fe2-4e86-8382-e0583ce43435@www.fastmail.com> <24f5cd7e-4fff-ce47-f9d9-840dff3f23aa@pobox.com> <3b48fa2d-f923-40ee-a93f-e0896a96fc1b@www.fastmail.com> <ba70c2ba-9023-4cc8-974a-01a64a60de2d@www.fastmail.com> <82488341-a4c6-2ed9-d8e2-6479151a5f90@pobox.com> <03ba01d6974e$ffaefe30$ff0cfa90$@gmx.net> <76c30176-f3bf-cc8f-74fb-b875d66e636f@pobox.com> <ABC80E3E-4C18-4290-B13E-50EDC129566B@akamai.com>
Date: Wed, 30 Sep 2020 23:34:45 -0400
From: Michael D'Errico <mike-list@pobox.com>
To: tls@ietf.org
Content-Type: text/plain
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/a2VmlLgbl-N3GabY52Xx-tTvl6U>
Subject: Re: [TLS] Is stateless HelloRetryRequest worthwhile? (was Re: TLS 1.3 Problem?)
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Oct 2020 03:35:09 -0000

> Not always; see TCP "fast open" options.

Maybe this should be disabled?  Fortunately if you wanted
to there is a setsockopt for TCP_FASTOPEN.

Mike

v2.23.0 | Report a Bug | By Email