The NSEC3 record contains the hash algorithm type 1

4c82sp2ag0m9hm9lfkb6d141t4qclui8.gmx.ch. 556 IN NSEC3 1 0 350 -
5AEHEF49CLPKJ5CHHRCND7VKKM7MKMJ4 CNAME RRSIG

So, it's only the NSEC3PARAM Hash Algorithm which confuses me.

Daniel

On 28.04.16 11:45, Daniel Stirnimann wrote:
> Hello
> 
> I noticed that web.de uses a NSEC3 Hash Algorithm Type 8.
> 
> But 8 is not assigned:
> http://www.iana.org/assignments/dnssec-nsec3-parameters/dnssec-nsec3-parameters.xhtml#dnssec-nsec3-parameters-3
> 
> ; <<>> DiG 9.8.3-P1 <<>> web.de NSEC3PARAM +noall +answer
> ;; global options: +cmd
> web.de.                       600     IN      NSEC3PARAM 8 0 333 -
> 
> ; <<>> DiG 9.8.3-P1 <<>> gmx.ch NSEC3PARAM +noall +answer
> ;; global options: +cmd
> gmx.ch.                       600     IN      NSEC3PARAM 8 0 350 -
> 
> On a related note, I'm also confused why the browser plugin from
> https://www.dnssec-validator.cz/ does not recognize that gmx.ch is
> DNSSEC signed. It works for web.de though!
> 
> Any idea?
> 
> Daniel
> 
> On 25.04.16 05:48, Viktor Dukhovni wrote:
>> On Fri, Apr 22, 2016 at 04:28:51PM +0000, Gumprich, Mario wrote:
>>
>>> We from Unitymedia has enabled DANE outbound a couple of month ago.
>>
>> Thanks for the update.
>>
>>> Today’s list of DANE inbound enabled domains / MX-IPs extracted from logs.
>>> mail.lux01.de[194.117.254.21]
>>> ...
>>> uhura.unitymedia.de[80.69.97.11]
>>>
>>> Pretty cool, the list grows from month to month.
>>
>> Do you ever run into any of the domains whose TLSA records are
>> incorrect, or whose DNS servers fail authenticated denial of
>> existence?  In other words, is there any mail you bounce because
>> of DANE that you might otherwise have delivered?
>>
>> Today's stats are:
>>
>> ~280000 DNSSEC domains that could have an MX host with TLSA RRs.
>>   15097 domains with valid TLSA RRs
>>     245 of those have 1+ MX hosts sans TLSA RRs (partial deployment)
>>     227 domains with DNSSEC problems when doing TLSA lookups
>>      56 domains with TLSA records that don't match the cert
>>
>> Given that the problem domans are rather few, perhaps you've never
>> run into them?
>>
>> Of the ~15k, 56 domains that have at some point in the last ~2
>> years appeared in the Google email transparency report dataset.
>> Of these 30 are in the most recent report:
>>
>>   gmx.at
>>   conjur.com.br
>>   registro.br
>>   gmx.ch
>>   gmx.com
>>   mail.com
>>   bayern.de
>>   bund.de
>>   gmx.de
>>   jpberlin.de
>>   lrz.de
>>   posteo.de
>>   ruhr-uni-bochum.de
>>   tum.de
>>   unitymedia.de
>>   web.de
>>   octopuce.fr
>>   comcast.net
>>   dd24.net
>>   gmx.net
>>   t-2.net
>>   xs4all.net
>>   xs4all.nl
>>   debian.org
>>   freebsd.org
>>   gentoo.org
>>   ietf.org
>>   openssl.org
>>   samba.org
>>   torproject.org
>>
>> I'm still waiting for icann.org to show up on the list, and ideally
>> a few prominent ".edu" domains that have gone to all the trouble
>> of deploying DNSSEC, but have not yet published SMTP TLSA records.
>> The ones from Gmail's transparentcy report would be:
>>
>>   berkeley.edu
>>   fhsu.edu
>>   iastate.edu
>>   indiana.edu
>>   iu.edu
>>   iupui.edu
>>   nau.edu
>>   stanford.edu
>>   temple.edu
>>   ucdavis.edu
>>   ucr.edu
>>   uiowa.edu
>>   umbc.edu
>>   yale.edu
>>
>> None of these have made the leap as yet.  It is possible, though
>> not very likely that  some departments have, I only scan domains
>> directly delegated from public suffixes.
>>
>> A substantial outlier with problem TLSA records is ".br".  The
>> registry/sole-registrar provides a web interface for adding TLSA
>> records, but no API for keeping them up to date.  As a result, a
>> large fraction of ".br" domains with TLSA RRs have invalid records,
>> or related issues.  Many don't promptly/ever act on email notices
>> (at least in English).  It may be wise to not enable DANE for ".br"
>> domains.
>>
>>   .BR TLSA records don't match reality:
>>
>>     allispdv.com.br
>>     bebidaliberada.com.br
>>     giantit.com.br
>>     idsys.com.br
>>     lojabrum.com.br
>>     netlig.com.br
>>     prodnsbr.com.br
>>     simplesestudio.com.br
>>     solucoesglobais.com.br
>>     ticketmt.com.br
>>     twsolutions.net.br
>>
>>   .BR DNSSEC lookup problems:
>>
>>     bb.b.br
>>     dpf.gov.br
>>     pf.gov.br
>>     justicaeleitoral.jus.br
>>     tre-al.jus.br
>>     tre-ce.jus.br
>>     tre-ma.jus.br
>>     tre-mg.jus.br
>>     tre-ms.jus.br
>>     tre-mt.jus.br
>>     tre-pa.jus.br
>>     tre-pb.jus.br
>>     tre-pe.jus.br
>>     tre-pi.jus.br
>>     tre-pr.jus.br
>>     tre-rn.jus.br
>>     tre-rr.jus.br
>>     tre-sp.jus.br
>>     m3ganet.net.br
>>
> 
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-- 
SWITCH
Daniel Stirnimann, SWITCH-CERT
Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 268 15 15, direct +41 44 268 16 24
[email protected], http://www.switch.ch

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