Re: [openpgp] Curve448 in ECDH
Paul Wouters <paul@nohats.ca> Sun, 28 February 2021 17:09 UTC
Return-Path: <paul@nohats.ca>
X-Original-To: openpgp@ietfa.amsl.com
Delivered-To: openpgp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 661D23A1966 for <openpgp@ietfa.amsl.com>; Sun, 28 Feb 2021 09:09:35 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -0.197
X-Spam-Level:
X-Spam-Status: No, score=-0.197 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nohats.ca
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 x9picWpFy2-G for <openpgp@ietfa.amsl.com>; Sun, 28 Feb 2021 09:09:33 -0800 (PST)
Received: from mx.nohats.ca (mx.nohats.ca [IPv6:2a03:6000:1004:1::68]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9F9403A1967 for <openpgp@ietf.org>; Sun, 28 Feb 2021 09:09:33 -0800 (PST)
Received: from localhost (localhost [IPv6:::1]) by mx.nohats.ca (Postfix) with ESMTP id 4DpVHZ5SgqzCQf; Sun, 28 Feb 2021 18:09:30 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nohats.ca; s=default; t=1614532170; bh=fwLZCsOwcvjOSZMe1KNg7oMDfKyh7t25PJAzPjQ4mcM=; h=Date:From:To:cc:Subject:In-Reply-To:References; b=g7ViKO+FFXP6BMbnMK8f91SvjIH4leSfyUwQnCZ72fa+jHyn0IIEivI9uZvH1MUSp cdX/MPCveQCgucL97G2IePLD34GVYqxcVhufdE20+VitnqOVs945JSWc/U696InZcb VK5jgJCMgf2smrjaxU4lAA94lbwTkOrCiEM0dRpQ=
X-Virus-Scanned: amavisd-new at mx.nohats.ca
Received: from mx.nohats.ca ([IPv6:::1]) by localhost (mx.nohats.ca [IPv6:::1]) (amavisd-new, port 10024) with ESMTP id ps4ZuIfV799V; Sun, 28 Feb 2021 18:09:29 +0100 (CET)
Received: from bofh.nohats.ca (bofh.nohats.ca [193.110.157.194]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx.nohats.ca (Postfix) with ESMTPS; Sun, 28 Feb 2021 18:09:29 +0100 (CET)
Received: by bofh.nohats.ca (Postfix, from userid 1000) id 49C6E6029B62; Sun, 28 Feb 2021 12:09:28 -0500 (EST)
Received: from localhost (localhost [127.0.0.1]) by bofh.nohats.ca (Postfix) with ESMTP id 4109966B1E; Sun, 28 Feb 2021 12:09:28 -0500 (EST)
Date: Sun, 28 Feb 2021 12:09:28 -0500
From: Paul Wouters <paul@nohats.ca>
To: "brian m. carlson" <sandals@crustytoothpaste.net>
cc: openpgp@ietf.org
In-Reply-To: <YDrX4NICW6a6TX32@camp.crustytoothpaste.net>
Message-ID: <aa9c358f-8982-9d7e-6bf1-e974d6b2d41c@nohats.ca>
References: <7d8bdda1-4e5c-6c10-f3cd-1d191fad595c@nohats.ca> <YDrX4NICW6a6TX32@camp.crustytoothpaste.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"; format="flowed"
Archived-At: <https://mailarchive.ietf.org/arch/msg/openpgp/OEnNr5X_f2ut-58LGsw-NCF9ieo>
Subject: Re: [openpgp] Curve448 in ECDH
X-BeenThere: openpgp@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Ongoing discussion of OpenPGP issues." <openpgp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/openpgp>, <mailto:openpgp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/openpgp/>
List-Post: <mailto:openpgp@ietf.org>
List-Help: <mailto:openpgp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/openpgp>, <mailto:openpgp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 28 Feb 2021 17:09:35 -0000
On Sat, 27 Feb 2021, brian m. carlson wrote: > I'm wondering, however, if there's consensus for adding Curve448 as well That is being tracked by the WG chairs. > The reason I ask is that in many implementations, of the NIST curves, > only P-256 is implemented in a constant-time manner, whereas Curve25519 > and Curve448 are almost always implemented in a constant-time manner. Is that a concern for openpgp ? openpgp is not an interactive protocol where there is a server-client with possible MITM observing time spent? Paul
- [openpgp] I-D Action: draft-ietf-openpgp-crypto-r… internet-drafts
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Paul Wouters
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Derek Atkins
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Robert J. Hansen
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Werner Koch
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Derek Atkins
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Ángel
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Ángel
- [openpgp] Incorporated RFC 6637: SHA2-384 recomme… Neal H. Walfield
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Neal H. Walfield
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Neal H. Walfield
- [openpgp] textual cleanup (no substantive changes) Neal H. Walfield
- [openpgp] Deprecate non-integrity-protected encry… Neal H. Walfield
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Neal H. Walfield
- Re: [openpgp] Deprecate non-integrity-protected e… Neal H. Walfield
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Daniel Kahn Gillmor
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Daniel Kahn Gillmor
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Daniel Kahn Gillmor
- [openpgp] Sec. Considerations MUST about S2K [was… Daniel Kahn Gillmor
- [openpgp] v5 fingerprints in ECDH brian m. carlson
- [openpgp] Curve448 in ECDH brian m. carlson
- Re: [openpgp] Sec. Considerations MUST about S2K … Peter Gutmann
- Re: [openpgp] Curve448 in ECDH Paul Wouters
- Re: [openpgp] v5 fingerprints in ECDH Paul Wouters
- Re: [openpgp] Curve448 in ECDH brian m. carlson
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Paul Wouters
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Paul Wouters
- Re: [openpgp] Curve448 in ECDH Paul Wouters
- Re: [openpgp] Curve448 in ECDH brian m. carlson
- Re: [openpgp] Sec. Considerations MUST about S2K … Ángel
- Re: [openpgp] ECC Curve OIDs section Ángel
- Re: [openpgp] who creates old-rfc registries? Ángel
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Ángel
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Neal H. Walfield
- Re: [openpgp] Sec. Considerations MUST about S2K … Ángel
- Re: [openpgp] Sec. Considerations MUST about S2K … Ángel
- Re: [openpgp] I-D Action: draft-ietf-openpgp-cryp… Paul Wouters