Re: [DNSOP] New draft on delegation revalidation

Vladimír Čunát <vladimir.cunat+ietf@nic.cz> Thu, 23 April 2020 11:10 UTC

Return-Path: <vladimir.cunat+ietf@nic.cz>
X-Original-To: dnsop@ietfa.amsl.com
Delivered-To: dnsop@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8E73D3A0CED for <dnsop@ietfa.amsl.com>; Thu, 23 Apr 2020 04:10:04 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.898
X-Spam-Level:
X-Spam-Status: No, score=-1.898 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001] autolearn=ham autolearn_force=no
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 yo7rKB8PULYO for <dnsop@ietfa.amsl.com>; Thu, 23 Apr 2020 04:10:02 -0700 (PDT)
Received: from mail.nic.cz (mail.nic.cz [217.31.204.67]) (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 985573A0786 for <dnsop@ietf.org>; Thu, 23 Apr 2020 04:09:58 -0700 (PDT)
Received: from [192.168.6.10] (nat-45.starnet.cz [178.255.168.45]) by mail.nic.cz (Postfix) with ESMTPSA id 4C42A140CB0; Thu, 23 Apr 2020 13:09:54 +0200 (CEST)
To: Shumon Huque <shuque@gmail.com>, "dnsop@ietf.org WG" <dnsop@ietf.org>
References: <CAHPuVdV9eSCLQOqMF0cq8fHcuSZs7nCgjhHMfMoaV5H=ekbtSA@mail.gmail.com> <CADyWQ+Gugw5ScSGDhDWLvrMQB-nNS+cOAcETQ9ssf2wPMFYq3w@mail.gmail.com> <CA+nkc8DkHaVR91koywh4KMx+-Pmw2gRR1KnuwUcP_j0G+k3S7A@mail.gmail.com> <CAHPuVdWSAX8Ha=djd_6qGC8NvaKAPjnNxu5UX8XW7fwZ6t_U_A@mail.gmail.com> <CA+nkc8DDHsocDkReb1GA1=6d_yau_jXLgwxZRhMFAfdJHaXMiw@mail.gmail.com> <CAHQ5LGpys=rDCDyvoBRW1_p4=V9XRCq+v5+cmqKaWHHbsCTNOA@mail.gmail.com> <CAHPuVdUEWQ+-OU8VTPwbZ8WDN8iTRk7dC0EASJNJVFr4FovaXA@mail.gmail.com>
From: =?UTF-8?B?VmxhZGltw61yIMSMdW7DoXQ=?= <vladimir.cunat+ietf@nic.cz>
Autocrypt: addr=vladimir.cunat+ietf@nic.cz; prefer-encrypt=mutual; keydata= mQINBFgDknYBEADHEQwLBlfqbVCzq7qYcBFFTc1WCAFtqiKehOrsITnKusZw4nhYwlKQxcum gj01xJOhbfHBCBeGlDydYqemKg4IfY2nwSyPwZZYMJn7L7AGrCeytr4VMvDJ7o7qDZjjim4i fv+GUwdk3plXx6oMF4nctesI8aAOuLUHAn0PfrGfNhWoaglOKgdOI6DGjhI/aGkvy+jrI/+X sdMV+3f1RuEOfI+Yu4SXFjJyhAmqEOBRxxdHqKreIIpz3Lg38yWwiVGfwgQT+nFIz9BpHH3l Wg1uS8xM3ezceBmRYV8zT9PvbeZ57BlaTR6rLae5RYwV397PSLBqqLkB5H0TDRUFBnwBsUob LebYHmJCOydvyNv5AFkLmLZ7O4j2jFo1WPSMt3ThM6wRwqrnB4Gi+6onyrZfE1DnVZMqbxZ3 VXa+E4S5YwrfCLUErGEn+d40OtoRZmQXhRPVAsdjimMj9oFM9RoxSgUrDg6Ia3n0IrKFb++z HAFbqkR5g4qzXiOMEG621GYEex2sDEKz/PD4CVKlNI9eld4ToH592kAwzJmd+sAi+Rfos0NE zxuFd0ekAOeWoURo0zoYTSWPlMOmFMvcpH6LP3leJmY7x4z/b1ng/+7UnKonVALVPFbRbElO kIfAtLKcUEofwV1jr7DyYGPalJtiDJPomB041ZHCj2RxyXY/oQARAQABtCRWbGFkaW3DrXIg xIx1bsOhdCA8dmN1bmF0QGdtYWlsLmNvbT6JAlcEEwEIAEECGyMFCQlmAYAFCwkIBwIGFQgJ CgsCBBYCAwECHgECF4AWIQS2AGRgtgqA54IGJEnnR98flXWjqgUCWg3w3gIZAQAKCRDnR98f lXWjqs7GEACZlVtvy0Q45DrRQJ2B5SAeb0ZJ5OZQFPFnnl4UjL2Q9A1jglzjftbhjfwf41K9 ouUoa6R8X8nlpGwo8DSZwXNYni8AXUMYh01VgSFop/6Uxeaczyz+X6/YJ5Q+UMEkVz2rrezp ZXG8pj0+yf8fGbImEqGDJInQZoJhUDaaFSiyFIMJWQUE52O117fAUvDDfVdvg3PDjaR+Mqf9 w6bZNm6Sr2LCJrxTLr71PcpZC0nD0menvUkAzwe4BzVmciSZWtyQB0fhlr6cBGb0WpqgYlXO V0TecMtAZGKrzsT48fspeBGPPobW9t6YsnFgQQB1V3ON4VxHxDeD3OV9Aq91zLl1cgBmp/z6 5APzzqHXthX/meBCzKLO06w82Np/gIeksFA05HbbykZElslbB2eFz8W3tV4WLWcKucDPl+Pm zlbt8XprWE7Pyn6mFp8beZQWT0VOcSTH/UOfEImplxFLRDTLk0wjMye/i06XlPu/1nrditHw mlVjFbdc7NSiO8rXdUgTuOEwdZMyIhCB9SWNxZa+7F3kVKdXTBytVaYSfD3qoDBP8bhaeDF8 K6054uo5pmBXD2f8WGqbuikNh64i1oncmj475uxRKkzByrkY9XN9qRKjWav6/ZemxMRgGmV+ HHef8lhyLthDvucIEHELuRK+xWmcD4fn5Mhk4DN4LLezwrkCDQRYA5J2ARAAyHww3huLEtsd yqgjiGMhtEKOLmp7yFl450HY9oPcHS02U5BC1370ssNShrdOCi2ACDbe41Zxx85WcuaO1OVq ung2umX047mj2xQsiTAFRDLZsQu8cQFoEy/DBL2bk7ThfK1Lh+NyZAs0UaPpDkGodS0De9os A+4T6Nf4POYaeavbYVFSdDKS4lUboBqApKnD/TzKFxFcpuFx6FN92lteTbOojGMiLoZvELY8 6Kn9KuFZ8FM2ZSNHx1Z75KouufGrdkeCoZYVYiuzT+fnt2it4dIpIlnF+yxMt5LB/MSrmECB 5CAFJtxzuMccm6yDUZQSWWi9vUgxIJwvt5w0CIBT353DGeP4WnH0r5YoBKoRbh7i4fT0lWvM XTG/V2lqyzBdClMebyHffMgba26Kj6oeDygDfC5aGsVaqw1Ue/qQ5QRqTJcJV7xVLTtS1Eam VqkfKwPS0zTfnrF1jQtnO/P4qkfgBRRG9BXGGrykHpXOyqmX6Z0wbV2P4j+p02oSecDl5yVX plJfsXfbS/xXnaSkaN/7mCU29ul26cAVNxDkDPunztSFi9K9LM2T/XWYJQGXM71OpmONQJGF 24lx7Wp/kobnHtbjGDzjDPC4eSL7MA56qtrWaLM+4ePKANct2q0q6c0uSLs0Q2zochS64Mcg 0YzL1sinWPN1rXLDk3lwpIsAEQEAAYkCJQQYAQgADwUCWAOSdgIbDAUJCWYBgAAKCRDnR98f lXWjqn4yEACA0f1XBAg+WMaNPtIt0k15yFPfhdbOg9GhDcYGgvFIOxRuaFWw9SLUt7OGuUnI pKxKRXtQJss98fHkijo70ONYWPuLhfRGK/wg9Ao6MuFw5G8m431CBS/awrieb6iPjvAARXJC PTTBZk/NC988jiKdCh8PbTCHDsl+gSDytP15QUrdqSfS2Wf4653ej7+jtuTjxZzmGgvNSi6J Dlb9KNtmBQKQAgpnOQM46ItESmzHDnmdcvhPLUDsjwkpIJ6clasOzaObwxJiba7iFPcGwcCl CSwYjMNXFtneCGUnEAa5RBIx+i+LV1iqB3VRvTC6tMIUueoQ7cdTy6afNkhwQYXm4/pDmNT8 UMdnzwnlTpFQ0CegDQRDWc+dIDDBHGEEEYBh2vTOE04KrmYUp1bQsNegPfvLwoHib0jEvohP MJ2fJtZAd1SJElgwPbM8H7emKBiTsHwF8gL7G2jo7AoGpqYjqXkCRS0tSLTNr+qHh+7Ltrkb u/ZVTTfh4Q/qw3VaLYQh4C0tBma/YevQy1O2c3TZXXFz1QF8b9/Hj/3sq2KgT1AcZ51E+xG+ cb6cUqgkihmgm39xx24GPlNAdCRuq01+iILol+Wox6OwF6hmqx1EMSmxcmGoUREr0rkMnFVs WeAYeVoE4q689qxCPu9iCMJMJnkRe1o9oQYSN7my+S98gA==
Message-ID: <b5263551-875a-f21d-6200-40b9ea9ae5ed@nic.cz>
Date: Thu, 23 Apr 2020 13:09:53 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0
MIME-Version: 1.0
In-Reply-To: <CAHPuVdUEWQ+-OU8VTPwbZ8WDN8iTRk7dC0EASJNJVFr4FovaXA@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Content-Language: en-US
X-Virus-Scanned: clamav-milter 0.101.4 at mail
X-Virus-Status: Clean
Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/BTcumrdKrCi_UujAa6iakY0liqE>
Subject: Re: [DNSOP] New draft on delegation revalidation
X-BeenThere: dnsop@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF DNSOP WG mailing list <dnsop.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dnsop>, <mailto:dnsop-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dnsop/>
List-Post: <mailto:dnsop@ietf.org>
List-Help: <mailto:dnsop-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsop>, <mailto:dnsop-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 23 Apr 2020 11:10:05 -0000

On 4/22/20 9:32 PM, Shumon Huque wrote:
> Since delegation records and glue address records are unsigned, they
> can be spoofed, and DNSSEC should really allow us to detect such
> spoofing once a resolver sees referral data.

I wouldn't put much energy into improving this part in *this* draft. 
Even DNSSEC-validated NSs and IPs aren't sufficient to ensure privacy,
so I'd rather kill this problem by proper encrypted protocol towards
authoritatives (in current dprive charter).

--Vladimir