Final Minutes for CA/Browser Forum Teleconference – Nov. 9, 2017

Attendees: Atsushi Inaba (GlobalSign), Ben Wilson (DigiCert), Bruce Morton 
(Entrust), Devon O’Brien (Google), Dimitris Zacharopoulos (HARICA), Fotis 
Loukos (SSL.com), Frank Corday (Trustwave), Jeremy Rowley (DigiCert), Kirk Hall 
(Entrust), Li-Chun Chen (Chunghwa Telecom), Mads Henriksveen (BuyPass), 
Michelle Coon (OATI), Mike Reilly (Microsoft), Patrick Tronnier (OATI), Peter 
Bowen (Amazon), Phillip Hallam-Baker (Comodo), Rich Smith (Comodo), Rick 
Andrews (DigiCert), Robin Alden (Comodo), Ryan Sleevi (Google), Tim Hollebeek 
(Trustwave), Tim Shirley (Trustwave), Wendy Brown (Federal PKI).

1.           Roll Call

2.           Read Antitrust Statement

3.           Review Agenda.  Agenda was approved.

4.           Approval of Minutes from teleconference of Oct. 26, 2017.  The 
draft of Minutes as circulated by Ben were approved, and will be posted to the 
Public list.

5.           Membership Application of Comodo Security Solutions, Inc. (as a 
browser).  The members agreed to defer consideration of this application until 
additional information was available.

Kirk then discussed the need for additional Bylaws provisions to clarify what 
to do when one member is substantially acquired by another (e.g., Symantec and 
DigiCert) as well as other membership changes.  He suggested a process under 
which the Chair and Vice Chair collect information about the status of a 
company to determine if it still qualifies for membership (including the 
company’s own views), prepare a report and recommendations, and present to the 
Forum – it may be the company’s current membership status can be decided by 
consensus, but if not a ballot could be proposed.

Peter noted that the Symantec transaction was an asset sale, not an ownership 
sale, which raises different questions.  Wendy noted that some member 
representatives formerly with Symantec could still be active in the Forum on 
behalf of DigiCert.  Bruce said if a company signed the IPR Agreement as a 
member but is no longer a member, could they just state they are no longer a 
member and no longer bound by the IPR agreement?  Peter noted some parts of the 
IPR Agreement will still apply even after a company is no longer a member and 
withdraws from the IPR Agreement (e.g., obligations that arose under the 
Agreement while the company was a member).

Devon noted that the legal department of departing members will care about the 
status of the IPR Agreement the company signed.  Jeremy noted that DigiCert has 
already signed the IPR Agreement, which now will extend to the acquired 
Symantec assets.  Rick said he would check with his legal department about the 
effect of withdrawal from the Forum on the obligations under the IPR Agreement.

6.           Governance Change Working Group.  Ben said Virginia had circulated 
comments to the draft FAQ on the Governance Change proposals.  There was no WG 
call this week, but the WG will follow up at its next meeting.

7.           Policy Review Working Group update.  Dimitris said there was no 
report.


8.           Network Security Working Group update.   Dimitris said the WG 
(which meets bi-weekly on Thursdays) did not have a meeting due to 
telecommunications problems. A sub-group was formed to take a threat analysis 
approach on a "Root CA System" which will hopefully map the current Network 
Security Requirements (the ones related to Root CA Systems) to specific 
vulnerabilities and threats.



This sub-group meets every Wednesday and hopefully will conclude its work in 
December. This sub-group reports to the Network Security Working Group. Other 
sub-groups have also spawned from the Network Security Working Group. One of 
them already discusses about password quality, and another one tries to 
describe a full Threat Model for the Root CA Systems.

9.           Validation Working Group update.  Jeremy said there was no report.

10.         Teleconference meetings times and possible transitions from 
Standard Time to Daylight Savings Time.  Kirk noted that North America had just 
moved from Daylight Savings Time (Summer Time) to Standard Time, which moved 
the start time for all teleconferences in North America to one hour earlier – 
meeting times switch back and forth two times a year for most members, which is 
inconvenient if a member has another fixed meeting time in local time that 
conflicts.

Some members have proposed setting meeting times according to a fixed local 
time instead of UTC to avoid this problem.  (It was noted that not all 
jurisdictions switch times on the same date – and some countries in Asia don’t 
switch times at all – so there will have to be some adjustments for some 
members even if the Forum goes to fixed meeting times.)  Kirk asked if the 
members would support setting meeting times to a local time instead of UTC, and 
the consensus was yes.  Kirk suggested following time zones in the US and 
Canada, as most participating members live there.  Ben said he would re-send 
all meeting calendar invitations to the current local time in the US and 
Canada, not UTC.

11.         Changes to WhoIs:
(a) ICANN PDP WG Next-Generation gTLD Registration Directory Services to 
Replace Whois
https://community.icann.org/display/gTLDRDS/Next-Generation+gTLD+Registration+Directory+Services+to+Replace+Whois

(b) EU’s General Data Protection Regulation:
http://www.theregister.co.uk/2017/10/26/whois_gdpr_europe/

Kirk noted he had sent out the links above with information about discussion in 
ICANN and EU regulations that could make most contact information for domain 
owners (e.g., Registrant, Admin, and Tech contact email address and phone 
number) unavailable for use in authenticating domains – apparently some 
participants in the ICANN Policy Development Process on this issue and the EU 
believe the data should not be disclosed for privacy reasons.  This could make 
it harder for CAs to authenticate domains for some customers.

Peter thought the ICANN group brought up a reasonable question, and noted that 
there is no requirement under the BRs that CAs use WhoIs data – it’s just one 
of several authentication methods.  Rich thought the Forum should consider 
modifying the BRs to recognize the move of many registries to RDAP – the BRs 
should be tech agnostic.  Many TLDs don’t publish ownership information.  Robin 
said he likes email address information to be available, and noted his company 
has agreements with some WhoIs operators to have access to the information.

12.         CT Domain Label Redaction – IETF TRANS WG.  Kirk noted that a 
number of CAs and website owners would still like specifications for CT domain 
label redaction to be completed so that they could be implemented by willing 
browsers/applications, CAs, and website owners.  He noted that he had listed 
the reasons in favor of allowing use of CT domain label redaction in a previous 
email sent to the members.  Several CAs were approaching the IETF TRANS WG 
co-chairs at the current meeting in Singapore to ask to restart the discussion.

Ryan asked Kirk what the overall goal for this was. Kirk began describing some 
of the use cases for this draft, shared on the Public List. Ryan clarified that 
he was trying to understand the process goals - the reason redaction was 
removed from the IETF drafts were that implementers, such as Chrome, were not 
interested in supporting this. The reason that implementers were not supportive 
was because of policy concerns - that is, the impacts of redaction on the 
ecosystem. As the IETF does not deal in policy, and the technology may need to 
change based on the proposed policy solutions, it seemed premature to push this 
in the IETF without a plan to address those concerns. Kirk indicated that the 
proposal was to discuss this in the Forum and the IETF in parallel.

There was then a discussion about use cases. Kirk highlighted that several CAs 
have had their customers asking for this feature. Ryan responded that Chrome 
had heard a number of people opposed to redaction. While he understands that 
CAs need to represent their customers, browsers need to represent their users, 
and redaction posed risk to the ecosystem.

Peter indicated that view represented the browser perspective, but not 
necessarily the perspective of the domain owners and that other PKIs may be 
interested in CT, outside of the Web PKI. He also noted that even with domain 
label redaction, all certificates would still be CT logged.  The point of 
reopening the discussion in the IETF is to develop a hard technical standard 
that can be used by those who want to use it.

Ryan highlighted that CT is not purely a technology, but an ecosystem. Ryan 
raised the example of how ensuring logs have incorporated certificates, or 
preventing split views, depends on clients checking SCTs and monitors/auditors 
checking consistency proofs, but had seen no explanation or examples of how 
this would happen in non-Web PKI use cases.

As it applies to the Web PKI, Ryan stated Chrome had raised the concerns 
regarding redaction to allow CAs time to respond and address the policy 
concerns, but only one CA, Amazon, engaged in those discussions. As a result of 
that engagement, Chrome had integrated that feedback, but that now it was too 
late in the product cycle for Chrome to reconsider redaction.

Tim expressed concern that any one member would try to prevent discussion of an 
issue in the CA/Browser Forum, and Ryan reiterated that he wasn't opposed to 
the discussion, merely that as a trust store policy, Chrome has decided 
redaction presents too much risk to the ecosystem due to the policy concerns, 
and that as a product schedule, it was going forward.

Rich and Mike both indicated they thought it would be appropriate to discuss 
the policy issues around CT domain label redaction in the Forum.  Ryan agreed 
that policy issues were appropriate for the Forum.

12.         Ballot Status – There was no discussion.

13.         Any Other Business.  There was no other business.

14.         Next call: Nov. 30, 2017.  Kirk noted that the next call normally 
would be in two weeks, on Nov. 23, but that was the Thanksgiving holiday in the 
US.  The members agreed to move the next teleconference call to one week later, 
Nov. 30, to avoid this conflict, with following calls every two weeks after 
that..  This will also avoid the conflict with the Christmas holiday.

15.         Adjourn

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