On 2015-06-12 15:34, Rob Austein wrote:
At Tue, 17 Mar 2015 00:46:23 -0400, David Mandelberg wrote:
The Router Key PDU (section 5.10) uses a fixed-size field for the
SKI.
What's the plan for algorithm agility, if the size of the SKI
changes?
if the size of the SKI does not change, but the algorithm does?
I'm gonna weasel on this one and say
a) A SKI is a SKI and it's none of this protocol's business how it's
calculated, so we don't care about algorithm changes per se here,
only about the length; and
Agreed.
b) If and when the SKI length changes, we redesign the PDU and bump
the version number.
The alternative would be to add a SKI-Length field or some such,
either in the reserved ("zero") field just after the flags field, or
just after the PDU length field.
If it wouldn't hold anything up too much, I'd prefer adding a
SKI-Length field now. On the other hand, if adding that field would
significantly delay this document, then I won't push it. It just seems
strange to me that any future decision to change the length of the SKI
will also require changing the the rpki-rtr version.
--
David Eric Mandelberg / dseomn
http://david.mandelberg.org/
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