[cabfpub] Draft Working Group Charter for Network Security WG

Ben Wilson bwilson at mozilla.com
Thu Oct 28 16:34:39 UTC 2021

Here is a draft charter for a Network Security Working Group.  Please
provide your comments, and then we will finalize this work in the form of a
Forum Ballot and Server Certificate WG Ballot.


In January 2013 the CA/Browser Forum’s “Network and Certificate System
Security Requirements” (NCSSRs) became effective. In June 2017, the Forum
chartered a Network Security Working Group to re-visit the NCSSRs. That
charter expired on June 19, 2018, and in October 2018, the Server
Certificate Working Group (SCWG) established a Network Security
Subcommittee (NetSec Subcommittee) to continue work on the NCSSRs.

This ballot proposes to charter a new Network Security Working Group
(NetSec WG) to replace the NetSec Subcommittee, to continue work on the
NCSSRs, and to conduct any and all business related to improving the
security of Certification Authorities.

Following the passage of this/these ballot(s):


   A new NetSec WG will be chartered under the CA/B Forum, pursuant to
   section 5.3.1 of the Bylaws;

   The SCWG’s existing NetSec Subcommittee will be dissolved by the SCWG
   and the Charter of the SCWG will be amended to note that work on the NCSSRs
   are within the authorized scope of the NetSec WG;

   The existing mailing list and other materials developed for the NetSec
   Subcommittee will be repurposed for use by the NetSec WG; and

   The Forum will develop a procedure to coordinate the NetSec WG’s
   adoption of security-related recommendations for requirements or guidelines
   that are within the purview of the other Forum WGs (the BRs/EVGs by the
   SCWG, Baseline Requirements for Code Signing Certificates of the CSCWG,

NetSec WG Charter

A chartered Working Group (“NetSec WG”) is created to perform the
activities as specified in this Charter, subject to the terms and
conditions of the CA/Browser Forum Bylaws (https://cabforum.org/bylaws/)
and Intellectual Property Rights (IPR) Policy (
https://cabforum.org/ipr-policy/), as such documents may change from time
to time. This charter for the NetSec WG has been created according to CAB
Forum Bylaw 5.3.1. In the event of a conflict between this Charter and any
provision in either the Bylaws or the IPR Policy, the provision in the
Bylaws or IPR Policy shall take precedence. The definitions found in the
Forum’s Bylaws shall apply to capitalized terms in this Charter.

1. Scope - The scope of work performed by the NetSec WG includes:

1.   To modify and maintain the existing Network and Certificate System
Security Requirements (NCSSRs), or a successor requirements document;

2.   To make recommendations for improvements to security controls in the
requirements or guidelines adopted by other Forum WGs (e.g. see sections 5
and 6 of the Baseline Requirements);

3.   To create new requirements, guidelines, and best practices related to
the security of CA operations;

4.   To perform risk analyses, security analyses, and other types of
reviews of threats and vulnerabilities applicable to CA operations involved
in the issuance and maintenance of publicly trusted certificates (e.g.
server certificates, code signing certificates, SMIME certificates, etc.);

5.   To perform other activities ancillary to the primary activities listed

2. Out of Scope – The NetSec WG shall not adopt requirements, Guidelines,
or Maintenance Guidelines concerning certificate profiles, validation
processes, certificate issuance, certificate revocation, or subscriber

3. End Date – The NetSec WG shall continue until it is dissolved by a vote
of the CA/B Forum.

4. Deliverables - The NetSec WG shall be responsible for delivering and
maintaining the NCSSRs and any other documents the group may choose to
develop and maintain.

5. Participation and Membership – Membership in the NetSec WG shall be
limited to Certificate Issuer Members and Certificate Consumer Members of
the Server Certificate Working Group, the Code Signing Certificate Working
Group, or the SMIME Certificate Working Group.

In accordance with the IPR Policy, Members that choose to participate in
the NetSec WG MUST declare their participation and shall do so prior to
participating. A Member must declare its participation in the NetSec WG by
requesting to be added to the mailing list. The Chair of the NetSec WG
shall establish a list for declarations of participation and manage it in
accordance with the Bylaws, the IPR Policy, and the IPR Agreement.

The NetSec WG shall  include Interested Parties and Associate Members as
defined in the Bylaws.

Resignation from the NetSec WG does not prevent a participant from
potentially having continuing obligations under the Forum’s IPR Policy or
any other document.

6. Voting Structure

The NetSec WG shall consist of two classes of voting members, Certificate
Issuers and Certificate Consumers. In order for a ballot to be adopted by
the NetSec WG, two-thirds or more of the votes cast by the Certificate
Issuers must be in favor of the ballot and more than 50% of the votes cast
by the Certificate Consumers must be in favor of the ballot. At least one
member of each class must vote in favor of a ballot for it to be adopted.
Quorum is the average number of Member organizations (cumulative,
regardless of Class) that have participated in the previous three NetSec WG
Meetings or Teleconferences (not counting subcommittee meetings thereof).
For transition purposes, if three meetings have not yet occurred, then
quorum is ten (10).

7. Leadership

Chair – Clint Wilson shall be the initial Chair of the NetSec WG.

Vice-Chair -  David Kluge shall be the initial Vice-Chair of the NetSec WG.

Term.  The Chair and Vice-Chair will serve until October 31, 2022, or until
they are replaced, resign, or are otherwise disqualified. Thereafter,
elections shall be held for chair and vice chair every two years in
coordination with the Forum’s election process and in conjunction with its
election cycle. Voting shall occur in accordance with Bylaw 4.1(c). In the
event of a midterm vacancy, the NetSec WG will hold a special election and
the selected candidate will serve the remainder of the existing term.

8. Communication - NetSec WG communications and documents shall be posted
on mailing-lists where the mail-archives are publicly accessible, and the
NetSec WG shall publish minutes of its meetings to the Forum’s website.

9.  IPR Policy - The CA/Browser Forum Intellectual Rights Policy, v. 1.3 or
later, shall apply to all Working Group activity.

10. Other Organizational Matters


Effect of Forum Bylaws Amendment on Working Group - In the event that Forum
Bylaws are amended to add or modify general rules governing Forum Working
Groups and how they operate, such provisions of the Bylaws take precedence
over this charter.
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