[TLS] Re: ML-KEM IANA and draft-connolly-tls-mlkem-key-agreement codepoint and inconsistencies

Kris Kwiatkowski <kris@amongbytes.com> Fri, 07 March 2025 09:00 UTC

Return-Path: <kris@amongbytes.com>
X-Original-To: tls@mail2.ietf.org
Delivered-To: tls@mail2.ietf.org
Received: from localhost (localhost [127.0.0.1]) by mail2.ietf.org (Postfix) with ESMTP id 44D978BB167 for <tls@mail2.ietf.org>; Fri, 7 Mar 2025 01:00:55 -0800 (PST)
X-Virus-Scanned: amavisd-new at ietf.org
X-Spam-Flag: NO
X-Spam-Score: -2.097
X-Spam-Level:
X-Spam-Status: No, score=-2.097 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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: mail2.ietf.org (amavisd-new); dkim=pass (2048-bit key) header.d=amongbytes.com
Received: from mail2.ietf.org ([166.84.6.31]) by localhost (mail2.ietf.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3jsc2NyrtZDv for <tls@mail2.ietf.org>; Fri, 7 Mar 2025 01:00:53 -0800 (PST)
Received: from 2.mo579.mail-out.ovh.net (2.mo579.mail-out.ovh.net [178.33.110.43]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail2.ietf.org (Postfix) with ESMTPS id 2DE088BB140 for <tls@ietf.org>; Fri, 7 Mar 2025 01:00:53 -0800 (PST)
Received: from mxplan8.mail.ovh.net (unknown [10.109.140.72]) by mo579.mail-out.ovh.net (Postfix) with ESMTPS id 4Z8KyC5JtGz1LLM for <tls@ietf.org>; Fri, 7 Mar 2025 09:00:51 +0000 (UTC)
Received: from amongbytes.com (37.59.142.107) by mxplan8.mail.ovh.net (172.16.2.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.44; Fri, 7 Mar 2025 10:00:51 +0100
Authentication-Results: garm.ovh; auth=pass (GARM-107S0011e157d3b-270e-498e-b074-2288bf756fd6, 685CF3531FD2174D5C0FA6439DDC8F4106C68226) smtp.auth=kris@amongbytes.com
X-OVh-ClientIp: 88.97.253.244
Content-Type: multipart/alternative; boundary="------------xL0Empohy10Y9lUAIO1omOt4"
Message-ID: <3e3c6310-984d-4288-9bca-afdaf187b892@amongbytes.com>
Date: Fri, 07 Mar 2025 09:00:50 +0000
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
To: tls@ietf.org
References: <ecbe460a-578e-4c2b-a58b-adecbe63abdf@cryptonext-security.com> <Z8mdhmuunvsHEhkZ@chardros.imrryr.org> <AS5PR07MB96758D66E90B56568326199089CA2@AS5PR07MB9675.eurprd07.prod.outlook.com> <CAMjbhoVhWt6bS0GeMqJDu6goQ=zNXQ_yHLXYukN6Q4O6ij7AtQ@mail.gmail.com> <Z8pv88GK2t_95t2a@chardros.imrryr.org>
Content-Language: en-GB
From: Kris Kwiatkowski <kris@amongbytes.com>
In-Reply-To: <Z8pv88GK2t_95t2a@chardros.imrryr.org>
X-Ovh-Tracer-GUID: 9a1d8166-e406-4e3f-92a2-a31e40582756
X-Ovh-Tracer-Id: 13097312143627239191
X-VR-SPAMSTATE: OK
X-VR-SPAMSCORE: 0
X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdduuddtvdegucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucenucfjughrpegtkfffgggfuffvfhfhjgesrgdtreertddvjeenucfhrhhomhepmfhrihhsucfmfihirghtkhhofihskhhiuceokhhrihhssegrmhhonhhgsgihthgvshdrtghomheqnecuggftrfgrthhtvghrnhepveegvddujedtgefhtdeujeetvdeghfejueevgeetvdevgedvveeuieefhfdtuedtnecuffhomhgrihhnpehimhhrrhihrhdrohhrghenucfkphepuddvjedrtddrtddruddpkeekrdeljedrvdehfedrvdeggedpfeejrdehledrudegvddruddtjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduvdejrddtrddtrddupdhmrghilhhfrhhomhepkhhrihhssegrmhhonhhgsgihthgvshdrtghomhdpnhgspghrtghpthhtohepuddprhgtphhtthhopehtlhhssehivghtfhdrohhrghdpoffvtefjohhsthepmhhoheejlegmpdhmohguvgepshhmthhpohhuth
DKIM-Signature: a=rsa-sha256; bh=IpuDwE7//4GIFUqqiLjWZUvNR6u4l12xPxkJ6QuEwqQ=; c=relaxed/relaxed; d=amongbytes.com; h=From; s=ovhmo2671616-selector1; t=1741338051; v=1; b=CKa0qwdwWigcyEoioSVAluiwG8OhQOvNe8A7RDxatfBfV3tyAyXVHE4GEXwG6fdvJrchqBG9 0UEBxBGS86kCqqIxGfI/gQQ4+f+0IkwCjB78xb5aqmKtczHcEevadze8fRKzHRYn4Bve1wz11pt 1Kq/lrDyE1jgfkM1Lv49wLP4RcAH8+qVwWe2DNRll7Q6jmKS8sdVuGSqA5SyXrg6KENQ+TENfgR ikUGzEoLogG0eiIXzQ5q8Vw2aweaNZcVg5TxpTo0BBA4K7yxR5qwTi6lGb1Z0jOln91PoR0PTNf zjBQugaMb4L9DuEAk9X3sDBwPsWDbDApHvmFewxxmFoDw==
Message-ID-Hash: XME5J4JBISZWT6R3UH23V4FHMPO7SN6Y
X-Message-ID-Hash: XME5J4JBISZWT6R3UH23V4FHMPO7SN6Y
X-MailFrom: kris@amongbytes.com
X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tls.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header
X-Mailman-Version: 3.3.9rc6
Precedence: list
Subject: [TLS] Re: ML-KEM IANA and draft-connolly-tls-mlkem-key-agreement codepoint and inconsistencies
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/rsqqhXzEBtxzK1bzjqDom2BrJmM>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Owner: <mailto:tls-owner@ietf.org>
List-Post: <mailto:tls@ietf.org>
List-Subscribe: <mailto:tls-join@ietf.org>
List-Unsubscribe: <mailto:tls-leave@ietf.org>

Indeed, that's very nice. I'm actually running OpenSSL built from a branch 
vduc/hybrids on my server
and X25519MLKEM768 seems to work alright.

May I know if you have a plan for FIPS certificaton for PQC after release?

Cheers,
Kris

On 07/03/2025 04:02, Viktor Dukhovni wrote:
> On Thu, Mar 06, 2025 at 09:01:13PM +0100, Bas Westerbaan wrote:
>
>> This is indeed fantastic—congratulations!
>>
>> Will X25519MLKEM768 be enabled by default?
> Yes, not only enabled, but preferred, with servers sending an HRR when a
> client reports support for X25519MLKEM768, but does not send a
> corresponding keyshare.
>
> Similarly, the most preferred sigalgs are ML-DSA-65, ML-DSA-87, and
> ML-DSA-44.  Of course these don't take effect unless the server is
> actually configured with a key+cert of that type.
>
>      $ posttls-finger -Lsummary -c dukhovni.org
>      posttls-finger: Verified TLS connection established
>          to mx1.imrryr.org[144.6.86.210]:25:
>          TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
>          key-exchange X25519MLKEM768
>          server-signature ML-DSA-65 (raw public key)
>