On Fri, Dec 7, 2012 at 9:58 PM, Ryan Sleevi <[email protected]> wrote:

> So, let's say the workflow is:
> You first visit "google.com" (or, through whatever U-A specific means
> exist, you have a pre-loaded pin for "google.com").
> It has a PKP directive that asserts Pin(A) and Pin(B), along with
> includeSubDomains.
> The validated cert chain contains Pin(A), so the PKP is accepted, and
> google.com (and all of its subdomains through all levels) are set to
> Pin(A) and Pin(B)
>
> You now visit www.google.com
>
> IF www.google.com is not valid for Pin(A), fail the connection. That is
> the only acceptable path.

Quick clarification: Pin(B) would also be acceptable.
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