Re: [TLS] DH generator 2 problem?

Michael D'Errico <mike-list@pobox.com> Fri, 09 October 2020 02:20 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 C4F353A1280 for <tls@ietfa.amsl.com>; Thu, 8 Oct 2020 19:20:28 -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=O2p3CUvF; dkim=pass (2048-bit key) header.d=messagingengine.com header.b=ksg4JiWt
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 bHRl8JH5lDdv for <tls@ietfa.amsl.com>; Thu, 8 Oct 2020 19:20:27 -0700 (PDT)
Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9D89A3A127F for <tls@ietf.org>; Thu, 8 Oct 2020 19:20:26 -0700 (PDT)
Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 8E1385C01D5 for <tls@ietf.org>; Thu, 8 Oct 2020 22:20:25 -0400 (EDT)
Received: from imap21 ([10.202.2.71]) by compute4.internal (MEProxy); Thu, 08 Oct 2020 22:20:25 -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=hgA1ag6N05aiCkE9D9sySZEIHV7A1s5 GjgMCNul9AMI=; b=O2p3CUvFKsk6N928VMS0EdYbi6JtZhR9RIYLii+JCCobm8P 6OJDKbBuemtbwn4VJlCcKwb9Ai82oz/1ID72oRLe4Wv3WXt0/VNY5N0Sl83ae/I6 zzpDp0GwDT+a0ng3ydOXQIo11cXchX8I/WMfgeuI2KiRfilYjQr3WlgoBEGbmlAo a3e5q6Rki8+OhXwipKRHjQu29Zzdo1bddhR2ZYn99YUfaPQGqbFX1YEDpwC6DCSZ KdrZUA4xWg8IAtZEblD1kHdn7155f+IW4ZQuQXGviHIGNakGasf+fj4jEpyw35WD lHTBrAMATCICWwooinRnhdQWnZgqeMQZp5S5N8w==
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=fm1; bh=hgA1ag 6N05aiCkE9D9sySZEIHV7A1s5GjgMCNul9AMI=; b=ksg4JiWtop/ZQNlc2opDU6 tCmH0u5ru2yJMtW3enkrAojNKffAQ/NYBp6bR4SiL/mgLysvx/w5xEqT5KUPvI+b eau8pnZIwq8shBPRh22aywWlPgdsa1rF4TYAIbK3o5Ch3DTZAJiK6YKUNBiMCfuE jWpetFYSADyILHMuNZGQh8r341waCDaI9RjF7Y47jHhzyYeBl603XZYJNPmu+OGT vA5ut23L4f982SqIxXWLCVI/OgRSEJDJl88eKN7BrFZzBQn+1/KFKrzEq9IyZvfP KYmr5dxelnLGpszxPzOtB7qy5MhSArdpbuuXhVnvU74CcXWUZJkbERrzeLQUCvyQ ==
X-ME-Sender: <xms:6ch_X5UsXnTSaOVQGmxr7aEsYwj4hqomrfG6jjBX4z74Sk8mXdB86g> <xme:6ch_X5n1eL8eborKyJbII2DPaIuAdVnKGnxN9sAofl6S4O3Yvo-2FGfVXo1ZGmDKo Mo6xqqkIKMbh2poSA>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrhedtgdehjecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhepofgfggfkjghffffhvffutgesthdtre dtreertdenucfhrhhomhepfdfoihgthhgrvghlucffkdfgrhhrihgtohdfuceomhhikhgv qdhlihhsthesphhosghogidrtghomheqnecuggftrfgrthhtvghrnhepieejueegheelgf ehtddvueetteefuefgffdvkeehteeutdekffejtedtiefggfdtnecuvehluhhsthgvrhfu ihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepmhhikhgvqdhlihhsthesphhosg hogidrtghomh
X-ME-Proxy: <xmx:6ch_X1ZglEHYGB-DzkuJjJo85XXcPMnbbHXu7LKMec2CPWPJ9fv_Jg> <xmx:6ch_X8W05eKwBFskCTxjIVxgH4siC8r2vomYt2JxnlJuZ-9fqGaNDQ> <xmx:6ch_Xzm6FrQkKuhdd3EywmNsX0JPUitJlbWEufYwLkXMcVYs5_E1vA> <xmx:6ch_X_y0rQaofIIIj1LCEqxvzbISEllKiXDQ0DDJoYwxBSh3ep7PzA>
Received: by mailuser.nyi.internal (Postfix, from userid 501) id 7CFCF66006F; Thu, 8 Oct 2020 22:20:16 -0400 (EDT)
X-Mailer: MessagingEngine.com Webmail Interface
User-Agent: Cyrus-JMAP/3.3.0-407-g461656c-fm-20201004.001-g461656c6
Mime-Version: 1.0
Message-Id: <bc94a94e-5633-4d96-80a8-2e73360546b8@www.fastmail.com>
In-Reply-To: <d876f953-2d5a-40a4-5738-b2bc24705f2c@pobox.com>
References: <d876f953-2d5a-40a4-5738-b2bc24705f2c@pobox.com>
Date: Thu, 08 Oct 2020 22:20:03 -0400
From: Michael D'Errico <mike-list@pobox.com>
To: TLS List <tls@ietf.org>
Content-Type: text/plain
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/lo4ZrYs2JPUk9T-Ec8Q04qhgBFY>
Subject: Re: [TLS] DH generator 2 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: Fri, 09 Oct 2020 02:20:29 -0000

> This is speculation of course.

I retract this part of my message due to
the fact that the format of the primes in
the recent spec is the same as the format
going back to the original MODP primes.

Mike