[dns-wg] Re: [dns-wg] RE: [dnssec-deployment] Ny nyckelsigneringsnyckel (KSK) för .SE - New key signing key (KSK) for .SE

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As a developer I have a question about revoke bits.

In a DNSKEY RRset that revokes A and also has keys B and C. Does A sign
(A+B+C) or does the signature from A only sign A?
Signing more than simply A is nonsense, since the key is revoked.
And aids storing a presigned-self-revocation for emergency use.
However, that is not standard for RRset signatures.

Do signatures from B and C sign (A+B+C) or (B+C) ?

How do revoke bit signatures work?

Best regards,
~   Wouter

richard.lamb wrote:
| I agree it would be unrealistic to set it for a production zone like .se
| yet.
| However, I like the idea of "exercising" the REVOKE bit so that potential
| developers see it.
| Would it break anything in BIND resolvers to do so?
| If not, id like to set it every time I change KSKs in our demo.
|
|
| -----Original Message-----
| From: DNSSEC deployment [mailto:dnssec-deployment at shinkuro.com] On
Behalf Of
| Holger Zuleger
| Sent: Friday, January 04, 2008 1:11 AM
| To: DNSSEC deployment
| Cc: Patrik Wallstrom; Anne-Marie.Eklund-Lowinder at iis.se; dns-wg at ripe.net
| Subject: Re: [dnssec-deployment] Ny nyckelsigneringsnyckel (KSK) för .SE -
| New key signing key (KSK) for .SE
|
|
|
| Patrik Wallstrom wrote:
|> On Thu, 03 Jan 2008, Holger Zuleger wrote:
|>
|>>> New key signing key (KSK) for .SE
|>>> As from today, 2008-01-03 .SE publish and take into use a new KSK for
|>>> signing the .SE zone file. The key published with start 2006 with key
|>>> id = 17686 is unvalid since 2008-01-01 and will be removed
|>>> 2008-02-01. You should have configured the key published with start
|>> Would it be possible to set the REVOKE Bit on that key, and announce it
| for
|>> another 30 days?
|> There was no time to fix this for this rollover. Next time.
| Oh, sure, it's clear that no one want's to add a new functionality on a
| productive service without testing, even if it is just to set one bit.
| But I thought that it was a good time to bring rfc5011 in mind...
|
|>> Doing so enables a rfc5011 aware validator to discard the key
| automatically
|>> from the list of possible trust anchor.
|> Which resolvers honors the revocation bit? To my knowledge, no swedish
|> resolver operators are using such software yet.
| I think you are right. I guess that actually no one use it.
| Small question to all the dnssec operators: Please raise your hand if
| I'm wrong. ;-)
| And to the bind guys: Honors bind, used as an dnssec validator, the
| revoke bit?
|
| Holger
|

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