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Hi Fredik,

As others already pointed out. A key with the SEP bit set is not
necessarily a KSK.

I like to see Key Signing (KS) and Zone Signing (ZS) as a role of a key.
A key can than have one or both of these roles. The document focuses too
much on the situation where those roles are divided between different
keys (aka a KSK/ZSK split). Therefore, it might be difficult to fit in
the Single Type Signing Scheme into the framework.

I propose the following changes:

- --------------------------------------------------------------------------

Section 2 Definitions:

Key Roll Over - A operational process of DNSSEC to change one of the
keys currently used for signing.

Section 4.4.5. Compromise and Disaster Recovery:

Bullet point 2:
The recovery procedures used ... is re-established, whether one of the
keys requires a roll-over, how to assess the damage and carry out the
root cause analysis.

Bullet point 3:
The recovery procedures used if one of the keys is compromised.  These
procedures describe how ...

Section 4.6.1. Key lengths, algorithms and roles

This subcomponent describes whether the keys are used as Key Signing
Key, Zone Singing Key or both. It describes the key generation algorithm
and the key length used to create the keys.

Merge 4.6.4 and 4.6.5: Key Roll-over

This subcomponent explains the roll-over scheme per key. Roll-overs vary
depending on the roles of the key (e.g. does the key act as a Key
Signing Key, Zone Singing Key or both).

- --------------------------------------------------------------------------

I think these are fairly small changes and makes a Single Type Signing
Scheme fit more into the framework.

Best regards.

Matthijs

PS: Perhaps the Flags Field (to SEP or not to SEP) should also be
covered. I think it would fit in Section 4.6.1.



On 06/23/2011 06:51 PM, Fredrik Ljunggren wrote:
> 
> On 2011-06-23, at 02:21, Matthijs Mekking wrote:
> 
>> The two different methods I call signing scheme.
> 
> Ok! I follow you.
> 
>> If I am going to use a Single Type Signing Scheme, where do I
>> describe the roll-over schedule for that key.
> 
> A KSK is a DNSKEY with the SEP bit set. And for validation to work
> with a single key, that key has to have the SEP bit set. So I would
> suggest roll-overs in a single-key zone to be described under KSK
> roll-over.
> 
> And you do have a point that this should be spelled out in the DPS
> framework document. Although, I'm a bit reluctant to having a whole
> new section for this, but would rather see it included in the
> existing sections.
> 
> What do you think about adding some descriptive text to the section
> "Key lengths and algorithms", to include split/single key signing
> there? And using the existing subsections as relevant for
> roll-overs?
> 
> -- Fredrik
> 
> 

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