Re: [dnsext] CDS RRTYPE review - Comments period end Mar 29th
Olafur Gudmundsson <ogud@ogud.com> Thu, 10 March 2011 22:16 UTC
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Date: Thu, 10 Mar 2011 17:17:22 -0500
From: Olafur Gudmundsson <ogud@ogud.com>
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To: Stephan Lagerholm <stephan.lagerholm@secure64.com>
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Subject: Re: [dnsext] CDS RRTYPE review - Comments period end Mar 29th
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On 10/03/2011 2:48 PM, Stephan Lagerholm wrote: > George B and Mark A, > >> In either case the software that signs zones has to be updated. > > If adding a new flag to DNSKEY and if the software already supports the > DNSKEY RR with arbitrary flags, then no update is needed. For example, I > could use an old version of ISC dig and still make sense out of the > DNSKEY record even if a new flag was added. But I had to upgrade ISC dig > if I wanted to figure out details about the CDS record. > >> If the output is in text format, the generic text format of RFC3597 > section 5 >> may be used if the serving software for the master server has not been > updated. > > The RDATA field would still just be a "blob". How would I for example be > able to verify the Key Tag, Algorithm or Digest Type field unless the > software you are using is programmed to understand that the format the > same as for the DS record? > >> The software for secondary servers does not need to be updated in any > case, >> assuming it implements RFC3597 ( that is it can handle unknown types ), >> which is of course the case for all mainstream implementations. > > Agreed, I'm taking about software that interacts with humans and try to > display something meaningful for them (provisioning system, IPAM, > debugging tools, etc) > > (For the record, I'm positive to this draft other than using a new RR > type. I would rather like to see an "embryonic" flag to the DNSKEY > similar to what the revoked flag is doing for old keys is RFC5011) > > /S > > > Stephan, there is a problem with using a flag as the flag field is covered both by DNSKEY keytag calculation and DS digest calculation. Thus changing the flag will "revoke" the key and/or its signatures, unless validators know how to handle the flag change. For all practical purposes the key flag field is a wasted space I tried to have it killed when we did the type code rollover (KEY ---> DNSKEY) along with the protocol field, but ...... Olafur
- [dnsext] CDS RRTYPE review - Comments period end … Roy Arends
- Re: [dnsext] CDS RRTYPE review - Comments period … Tony Finch
- Re: [dnsext] CDS RRTYPE review - Comments period … George Barwood
- Re: [dnsext] CDS RRTYPE review - Comments period … Miek Gieben
- Re: [dnsext] CDS RRTYPE review - Comments period … Jelte Jansen
- Re: [dnsext] CDS RRTYPE review - Comments period … George Barwood
- Re: [dnsext] CDS RRTYPE review - Comments period … Miek Gieben
- Re: [dnsext] CDS RRTYPE review - Comments period … George Barwood
- Re: [dnsext] CDS RRTYPE review - Comments period … Scott Schmit
- Re: [dnsext] CDS RRTYPE review - Comments period … Andrew Sullivan
- Re: [dnsext] CDS RRTYPE review - Comments period … George Barwood
- Re: [dnsext] CDS RRTYPE review - Comments period … Olafur Gudmundsson
- Re: [dnsext] CDS RRTYPE review - Comments period … Phillip Hallam-Baker
- Re: [dnsext] CDS RRTYPE review - Comments period … Tony Finch
- Re: [dnsext] CDS RRTYPE review - Comments period … Tony Finch
- Re: [dnsext] CDS RRTYPE review - Comments period … Phillip Hallam-Baker
- Re: [dnsext] CDS RRTYPE review - Comments period … Matthew Pounsett
- Re: [dnsext] CDS RRTYPE review - Comments period … Olafur Gudmundsson
- Re: [dnsext] CDS RRTYPE review - Comments period … Miek Gieben
- Re: [dnsext] CDS RRTYPE review - Comments period … Paul Wouters
- Re: [dnsext] CDS RRTYPE review - Comments period … Mark Andrews
- Re: [dnsext] CDS RRTYPE review - Comments period … Mark Andrews
- Re: [dnsext] CDS RRTYPE review - Comments period … Stephan Lagerholm
- Re: [dnsext] CDS RRTYPE review - Comments period … Mark Andrews
- Re: [dnsext] CDS RRTYPE review - Comments period … George Barwood
- Re: [dnsext] CDS RRTYPE review - Comments period … Samuel Weiler
- Re: [dnsext] CDS RRTYPE review - Comments period … Stephan Lagerholm
- Re: [dnsext] CDS RRTYPE review - Comments period … Olafur Gudmundsson
- Re: [dnsext] CDS RRTYPE review - Comments period … Mark Andrews
- Re: [dnsext] CDS RRTYPE review - Comments period … Stephan Lagerholm
- Re: [dnsext] CDS RRTYPE review - Comments period … Stephan Lagerholm
- Re: [dnsext] CDS RRTYPE review - Comments period … Mark Andrews
- Re: [dnsext] CDS RRTYPE review - Comments period … Roy Arends