Re: What ASN.1 got right

Michael Thomas <mike@mtcc.com> Thu, 04 March 2021 19:32 UTC

Return-Path: <mike@fresheez.com>
X-Original-To: ietf@ietfa.amsl.com
Delivered-To: ietf@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F26CB3A14F2 for <ietf@ietfa.amsl.com>; Thu, 4 Mar 2021 11:32:08 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.75
X-Spam-Level:
X-Spam-Status: No, score=-1.75 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=mtcc.com
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 8M5HAP2_sjEH for <ietf@ietfa.amsl.com>; Thu, 4 Mar 2021 11:32:07 -0800 (PST)
Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E4BE93A14F4 for <ietf@ietf.org>; Thu, 4 Mar 2021 11:32:07 -0800 (PST)
Received: by mail-pf1-x434.google.com with SMTP id y67so1804650pfb.2 for <ietf@ietf.org>; Thu, 04 Mar 2021 11:32:07 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mtcc.com; s=fluffulence; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding:content-language; bh=F3Xex0ysvdP1YzJl/Shrs6cUo+BaCHpffaooUWoUH2s=; b=VgOwSnQb4TRYdN/ZNZCzESq3YCK5y/g2z6bQIzygq7nsn13yjx09/hvr88xyVn32Zi rwoIDdJdmiObbP/7W0HLb7RgUrc6K8FcwYOm331fvMAKNz0eMqLLhnE3XthwxdgTmE3A 54FC7VJcPPzzcrJ2FYEgrdaj0S/44Vd6c44w8/U+cVF3XburFlPmjR6kVnZNNW0ZIwRY XlngnWBKOubmXFxW0IIIkptFDhejCIe0G0PY4LjWPX8ukkZjqHMu1hqgd01uq0AsFQhU xYsIOdrdFVWilIJo2WDYvAeKqxHjjTW3tuBQy4gwgBrrXQXyjRCQNfr0rhFzQPLowoO6 KpHg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=F3Xex0ysvdP1YzJl/Shrs6cUo+BaCHpffaooUWoUH2s=; b=dL921Z1+aLnYv8EKdW25v/h/PkcnHbpbmuDjEFf01pPKQbsLa3YE+DKsHXeHgNbUCq UkAZ9CHrIrN8e6RdCGu6vIm9JQrK5jozPrH7qvJwaLCnFxC0ZqfydvRwAnJt6Bv4xfU1 yXKA4mLGX3gPsHzbNB85DlME1ooBWSgcXo6eNmINMfLbkaiHgZVRpWhNjc6+YIhjwUUZ Hvzzr/aKfVbRhyk23gKWofxG5IxV+eken4fYKFnqfq+5ghGnh/JPrekMLPGO4iJzrx8Z by2jBCXNLjR+xNc2W2A2gwTyxJdY16eSzoqU7doCvNnPG4QBvgGWGZA8gt1pUeYmGGsb pfDQ==
X-Gm-Message-State: AOAM53335hWYlcjPkZjBpiMe+lA9T8b2V+Eb7iGYf0sW50Za7ZsIGSzn yCkKDY34vahInJwvDJpXtDPi59pqQq519w==
X-Google-Smtp-Source: ABdhPJwBC2gVUuLq9IDvA5eib+b49DSKG2q6kuf/PfU32f5X3Dlp6HwgjLUsWOrW4KvaATg4CQIrLg==
X-Received: by 2002:a63:4b21:: with SMTP id y33mr4842868pga.73.1614886326004; Thu, 04 Mar 2021 11:32:06 -0800 (PST)
Received: from mike-mac.lan (107-182-37-239.volcanocom.com. [107.182.37.239]) by smtp.gmail.com with ESMTPSA id cv3sm77859pjb.9.2021.03.04.11.32.05 for <ietf@ietf.org> (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Mar 2021 11:32:05 -0800 (PST)
Subject: Re: What ASN.1 got right
To: ietf@ietf.org
References: <20210302010731.GL30153@localhost> <0632b948-9ed1-f2bd-96da-9922ebb2aa60@mtcc.com> <YECpybvczdbKHvHx@puck.nether.net> <CAMm+LwiiySi5O1_WDc4-F9x1XfMFFvE-rEbc4uw+31DHJNEHEA@mail.gmail.com> <86b382d8-dd3c-ed0a-8dde-f0837cf10e98@mtcc.com> <21f4daa7-fe35-3d85-a7ff-b547cfe55ff7@network-heretics.com> <b542f10e-c9ec-f08e-b023-dca4f518fcc0@mtcc.com> <b3605b00-8797-b714-7bc9-82ab488b40bf@network-heretics.com> <9444a9d3-837b-8ff3-2f91-4407c496d851@mtcc.com> <6f6d8e67-e135-1314-e803-586d242ca570@network-heretics.com>
From: Michael Thomas <mike@mtcc.com>
Message-ID: <2e6158d2-dc8f-4665-756d-32191eb47c5c@mtcc.com>
Date: Thu, 04 Mar 2021 11:32:04 -0800
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.8.0
MIME-Version: 1.0
In-Reply-To: <6f6d8e67-e135-1314-e803-586d242ca570@network-heretics.com>
Content-Type: text/plain; charset="utf-8"; format="flowed"
Content-Transfer-Encoding: 8bit
Content-Language: en-US
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf/LDg1d_JtA4B8RCAznItDKyjJtxM>
X-BeenThere: ietf@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF-Discussion <ietf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf>, <mailto:ietf-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ietf/>
List-Post: <mailto:ietf@ietf.org>
List-Help: <mailto:ietf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf>, <mailto:ietf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 04 Mar 2021 19:32:09 -0000

On 3/4/21 11:24 AM, Keith Moore wrote:
> On 3/4/21 2:17 PM, Michael Thomas wrote:
>
>> My point here isn't to defend how TLS works, it's to say that almost 
>> nothing requires the truly offline verification aspect that x.509 
>> brings to the table.
>>
> Emphatically disagree.   There are lots of situations requiring "truly 
> offline" certificate verification.
What? Seriously what? A Mars rover, maybe? And if they truly need 
offline verification, fine use X.509. For all the rest it is just so 
much more unneeded baggage and confusion.
>
>
>> I can (and have) built a asymmetric key login mechanism that just 
>> puts naked public keys into a user table of a database, for example. 
>> The x.509-first view of the asymmetric keys world has confused a lot 
>> of thinking and had I introduced it to that mechanism it would have 
>> worlds more complex and much harder to understand. Designers should, 
>> dare I say it, be looking at the actual requirements of the system 
>> before settling on a particular solution.
>>
> Perhaps you should take your own advice.
>
I did take my own advice. The result was DKIM. So did the SSH folks 
which works just fine on a disconnected network.

Mike