On 3 March 2017 at 19:09, Andrew Ayer <[email protected]> wrote:

> On Fri, 3 Mar 2017 13:24:51 -0500
> Richard Barnes <[email protected]> wrote:
> > - A field in an SCT that indicates the canonical STH for the
> > certificate in question.  Possibly a serial number in STH that SCTs
> > could refer to.
>
> Is this necessary?  Why not define the canonical STH as the first STH
> issued after the SCT (based on timestamp)?
>

That doesn't work - the cert may not have been included in the log by then.

That said, not sure how Richard's proposal works, either - in general, the
front-end that returns the SCT cannot know when the cert will be included,
and hence cannot predict the relevant STH.

Not entirely sure I agree with the initial premise anyway.

>
>
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