On Wed, 16 Aug 2017 11:25:20 -0800
Melinda Shore <[email protected]> wrote:

> Hi, all:
> 
> With our major deliverable now pushed out towards IETF
> last call, it's time to start considering whether or not
> there's additional work to do, or if we're done.  As
> we've talked about before, we know that there's at least
> some interest in:
> 
> . a client behavior document
> . logging DNSSEC records
> . logging binaries

I've also seen interest expressed on the mailing list for:

* A monitor API
* A strict version of CT

> Plus, I'm somewhat concerned about lack of gossip implementation
> and deployment, and it's worth considering whether that's because
> of lack of interest or because people running logs don't think
> that what's in the gossip spec is suitable for their needs.

Note that logs don't participate in gossip, so your question is one
for TLS clients and monitors/auditors.

The biggest problem is that the gossip spec only works with CTv2,
and there are no CTv2 logs in existence, let alone implementations.

Nevertheless, there's a fairly obvious and minor modification to make
STH pollination work with CTv1, and I know of 7 different
monitor/auditor implementations which are using this variation of the
spec to exchange STHs from publicly-trusted CTv1 logs.

That said, I know of no implementations of SCT feedback, nor of any plans
by TLS clients to implement any part of gossip.

Regards,
Andrew

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