On Wed, Apr 18, 2018 at 11:34:14PM -0400, Viktor Dukhovni wrote:
> > On Apr 18, 2018, at 11:25 PM, Peter Gutmann <pgut...@cs.auckland.ac.nz> 
> > wrote:
> >> That's just silly.  Really, 7.5 years (relative, not absolute) measured in
> >> hours is plenty good enough, and more than outlives current device
> >> obsolescence.  This isn't subject to Moore's law or anything like it.
> > 
> > I don't know what devices you work with, but for the ones where my code is
> > used ten years is the baseline life expectancy, going out to 15-20 years for
> > longer-life ones (I still have to deal with SSH bugs from the late 1990s,
> > because the lifetime of the equipment that's used in is 20 years and 
> > counting.
> > I think I've finally managed to get away from having to do SSLv3 within the
> > last year or two).
> > 
> > OTOH I doubt any of these devices will do pinning, they just bake in the 
> > certs
> > at manufacture/provisioning, so I'm fine with any kind of lifetime.  Just
> > wanted to point out, yet again, that the entire world doesn't live in a "we
> > can patch the entire deployed base in 24 hours" situation.
> 
> Indeed, but if pinning were desired, all the device would have to do
> is call the mother ship at least twice per decade, it can then work
> for multiple decades.

Exactly.

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