[Dcrup] Re: [standards] [Editorial Errata Reported] RFC8463 (7930)

Steffen Nurpmeso <steffen@sdaoden.eu> Sat, 11 May 2024 22:32 UTC

Return-Path: <steffen@sdaoden.eu>
X-Original-To: dcrup@ietfa.amsl.com
Delivered-To: dcrup@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6648EC14F5FD for <dcrup@ietfa.amsl.com>; Sat, 11 May 2024 15:32:39 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.098
X-Spam-Level:
X-Spam-Status: No, score=-7.098 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_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_PASS=-0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=unavailable autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=sdaoden.eu header.b="fqagoshd"; dkim=neutral reason="invalid (unsupported algorithm ed25519-sha256)" header.d=sdaoden.eu header.b="/k8/72PH"
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JVazmyjlkcuT for <dcrup@ietfa.amsl.com>; Sat, 11 May 2024 15:32:34 -0700 (PDT)
Received: from sdaoden.eu (sdaoden.eu [217.144.132.164]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4CED0C14F5FB for <dcrup@ietf.org>; Sat, 11 May 2024 15:32:32 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sdaoden.eu; s=citron; t=1715466749; x=1716133415; h=date:author:from:to:cc:subject: message-id:in-reply-to:references:mail-followup-to:openpgp:blahblahblah: author:from:subject:date:to:cc:resent-date:resent-from:resent-to: resent-cc:in-reply-to:references:mime-version:content-type: content-transfer-encoding:message-id:mail-followup-to:openpgp: blahblahblah; bh=WVPscUz42nyrjyUOpQru41SG7bfD3SoOVT60hVBt7Hc=; b=fqagoshdStSCwqQrXnO4ebmAqmx30eeWV+zqGuDO0POObf7BCXJBOVpC0RAbPeo4JMelfY8q 5C5IFigRb3EbX6X6D7TppaoTVqDI9Z5fyJJ7DUtNoUzRrSpExQooJCoSwqFXfn0x6rGOmkHLfH tJy/klFP6bx4GZkIn3s81XXB3KwhPC5BovLEkiqa0s4ggs0oS9UB4HstfveOCS2gA9ikYVlbff NOzMhMmbzB7YlojX2Zavq27xtED/93XjHlZ9jhQfOGRKXmrziwUI14rHJt07vTDn1S4rp2Eh6G fSY+ilCu/v2rgZaYhoQADFWXzWtVYLumrC1ZwujdPCPggDXw==
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=sdaoden.eu; s=orange; t=1715466749; x=1716133415; h=date:author:from:to:cc:subject: message-id:in-reply-to:references:mail-followup-to:openpgp:blahblahblah: author:from:subject:date:to:cc:resent-date:resent-from:resent-to: resent-cc:in-reply-to:references:mime-version:content-type: content-transfer-encoding:message-id:mail-followup-to:openpgp: blahblahblah; bh=WVPscUz42nyrjyUOpQru41SG7bfD3SoOVT60hVBt7Hc=; b=/k8/72PHPGlW7rWzZJpPmzNONLCRdBJUC7d1AVskebLhhP00zmmgA9FWZrLm/DjAebxfVwym 3/uJp8QJFpOBAA==
Date: Sun, 12 May 2024 00:32:27 +0200
Author: Steffen Nurpmeso <steffen@sdaoden.eu>
From: Steffen Nurpmeso <steffen@sdaoden.eu>
To: Viktor Dukhovni <ietf-dane@dukhovni.org>
Message-ID: <20240511223227.IW5-DSdi@steffen%sdaoden.eu>
In-Reply-To: <20240511201754.H_LMdv5z@steffen%sdaoden.eu>
References: <20240511201039.lf46znlR@steffen%sdaoden.eu> <20240511201754.H_LMdv5z@steffen%sdaoden.eu>
Mail-Followup-To: Viktor Dukhovni <ietf-dane@dukhovni.org>, John R Levine <johnl@taugh.com>, "RFC Errata System" <rfc-editor@rfc-editor.org>, dcrup@ietf.org, "Scott Kitterman" <sklist@kitterman.com>, "Murray S. Kucherawy" <superuser@gmail.com>, Orie Steele <orie@transmute.industries>, Rebecca VanRheenen <rvanrheenen@amsl.com>, Steffen Nurpmeso <steffen@sdaoden.eu>
User-Agent: s-nail v14.9.24-621-g0d1e55f367
OpenPGP: id=EE19E1C1F2F7054F8D3954D8308964B51883A0DD; url=https://ftp.sdaoden.eu/steffen.asc; preference=signencrypt
BlahBlahBlah: Any stupid boy can crush a beetle. But all the professors in the world can make no bugs.
Message-ID-Hash: AR4ORXVDEM7H5XB7FCLKQI73TXLGUKOU
X-Message-ID-Hash: AR4ORXVDEM7H5XB7FCLKQI73TXLGUKOU
X-MailFrom: steffen@sdaoden.eu
X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-dcrup.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header
CC: John R Levine <johnl@taugh.com>, RFC Errata System <rfc-editor@rfc-editor.org>, dcrup@ietf.org, Scott Kitterman <sklist@kitterman.com>, "Murray S. Kucherawy" <superuser@gmail.com>, Orie Steele <orie@transmute.industries>, Rebecca VanRheenen <rvanrheenen@amsl.com>, Steffen Nurpmeso <steffen@sdaoden.eu>
X-Mailman-Version: 3.3.9rc4
Precedence: list
Subject: [Dcrup] Re: [standards] [Editorial Errata Reported] RFC8463 (7930)
List-Id: DKIM Crypto Update <dcrup.ietf.org>
Archived-At: <https://mailarchive.ietf.org/arch/msg/dcrup/6jFk05MFg09YUHnPMFsfbZN5RbQ>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dcrup>
List-Help: <mailto:dcrup-request@ietf.org?subject=help>
List-Owner: <mailto:dcrup-owner@ietf.org>
List-Post: <mailto:dcrup@ietf.org>
List-Subscribe: <mailto:dcrup-join@ietf.org>
List-Unsubscribe: <mailto:dcrup-leave@ietf.org>

So quite honestly, software which implements RFC 8463 really
performs a double-digest operation.  No people, that is a really
heavy thing.

But i reject this errata as such, since it is implemented like
this.

I want however, finally, paste over a comment of a very widely
used four-letter MTA:

    /* For GCrypt, and for EC, we pass the hash-of-headers to the signing
    routine.  For anything else we just pass the headers. */

    if (sig->keytype != KEYTYPE_ED25519)

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)