<?xml version='1.0' encoding='utf-8'?>
<rfc xmlns:xi="http://www.w3.org/2001/XInclude" version="3" category="bcp" consensus="true" docName="draft-ietf-elegy-rfc8989bis-05" indexInclude="true" ipr="trust200902" number="9389" obsoletes="8788, 8989" prepTime="2023-04-28T15:36:29" scripts="Common,Latin" sortRefs="true" submissionType="IETF" symRefs="true" tocDepth="3" tocInclude="true" updates="8713" xml:lang="en">
  <link href="https://datatracker.ietf.org/doc/draft-ietf-elegy-rfc8989bis-05" rel="prev"/>
  <link href="https://dx.doi.org/10.17487/rfc9389" rel="alternate"/>
  <link href="urn:issn:2070-1721" rel="alternate"/>
  <front>
    <title abbrev="Nominating Committee Eligibility">Nominating Committee Eligibility</title>
    <seriesInfo name="RFC" value="9389" stream="IETF"/>
    <seriesInfo name="BCP" value="10" stream="IETF"/>
    <author initials="M." surname="Duke" fullname="Martin Duke">
      <organization showOnFrontPage="true">Google LLC</organization>
      <address>
        <email>martin.h.duke@gmail.com</email>
      </address>
    </author>
    <date month="04" year="2023"/>
    <area>gen</area>
    <workgroup>elegy</workgroup>
    <abstract pn="section-abstract">
      <t indent="0" pn="section-abstract-1">The IETF Nominating Committee (NomCom) appoints candidates to several IETF
leadership committees. RFC 8713 provides criteria for NomCom membership that
attempt to ensure NomCom volunteers are members of the loosely defined
IETF community, by requiring in-person attendance in three of the past five in-person meetings. In 2020 and 2021, the IETF had six consecutive fully online
plenary meetings that drove rapid advancement in remote meeting technologies and
procedures, including an experiment that included remote attendance for NomCom
eligibility. This document updates RFC 8713 by defining a new set of eligibility
criteria from first principles, with consideration to the increased salience of
remote attendance. This document obsoletes RFCs 8788 and 8989.</t>
    </abstract>
    <boilerplate>
      <section anchor="status-of-memo" numbered="false" removeInRFC="false" toc="exclude" pn="section-boilerplate.1">
        <name slugifiedName="name-status-of-this-memo">Status of This Memo</name>
        <t indent="0" pn="section-boilerplate.1-1">
            This memo documents an Internet Best Current Practice.
        </t>
        <t indent="0" pn="section-boilerplate.1-2">
            This document is a product of the Internet Engineering Task Force
            (IETF).  It represents the consensus of the IETF community.  It has
            received public review and has been approved for publication by
            the Internet Engineering Steering Group (IESG).  Further information
            on BCPs is available in Section 2 of RFC 7841.
        </t>
        <t indent="0" pn="section-boilerplate.1-3">
            Information about the current status of this document, any
            errata, and how to provide feedback on it may be obtained at
            <eref target="https://www.rfc-editor.org/info/rfc9389" brackets="none"/>.
        </t>
      </section>
      <section anchor="copyright" numbered="false" removeInRFC="false" toc="exclude" pn="section-boilerplate.2">
        <name slugifiedName="name-copyright-notice">Copyright Notice</name>
        <t indent="0" pn="section-boilerplate.2-1">
            Copyright (c) 2023 IETF Trust and the persons identified as the
            document authors. All rights reserved.
        </t>
        <t indent="0" pn="section-boilerplate.2-2">
            This document is subject to BCP 78 and the IETF Trust's Legal
            Provisions Relating to IETF Documents
            (<eref target="https://trustee.ietf.org/license-info" brackets="none"/>) in effect on the date of
            publication of this document. Please review these documents
            carefully, as they describe your rights and restrictions with
            respect to this document. Code Components extracted from this
            document must include Revised BSD License text as described in
            Section 4.e of the Trust Legal Provisions and are provided without
            warranty as described in the Revised BSD License.
        </t>
      </section>
    </boilerplate>
    <toc>
      <section anchor="toc" numbered="false" removeInRFC="false" toc="exclude" pn="section-toc.1">
        <name slugifiedName="name-table-of-contents">Table of Contents</name>
        <ul bare="true" empty="true" indent="2" spacing="compact" pn="section-toc.1-1">
          <li pn="section-toc.1-1.1">
            <t indent="0" keepWithNext="true" pn="section-toc.1-1.1.1"><xref derivedContent="1" format="counter" sectionFormat="of" target="section-1"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-introduction">Introduction</xref></t>
          </li>
          <li pn="section-toc.1-1.2">
            <t indent="0" keepWithNext="true" pn="section-toc.1-1.2.1"><xref derivedContent="2" format="counter" sectionFormat="of" target="section-2"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-nomcom-principles">NomCom Principles</xref></t>
          </li>
          <li pn="section-toc.1-1.3">
            <t indent="0" keepWithNext="true" pn="section-toc.1-1.3.1"><xref derivedContent="3" format="counter" sectionFormat="of" target="section-3"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-criteria">Criteria</xref></t>
          </li>
          <li pn="section-toc.1-1.4">
            <t indent="0" pn="section-toc.1-1.4.1"><xref derivedContent="4" format="counter" sectionFormat="of" target="section-4"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-security-considerations">Security Considerations</xref></t>
            <ul bare="true" empty="true" indent="2" spacing="compact" pn="section-toc.1-1.4.2">
              <li pn="section-toc.1-1.4.2.1">
                <t indent="0" pn="section-toc.1-1.4.2.1.1"><xref derivedContent="4.1" format="counter" sectionFormat="of" target="section-4.1"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-nomcom-capture">NomCom Capture</xref></t>
                <ul bare="true" empty="true" indent="2" spacing="compact" pn="section-toc.1-1.4.2.1.2">
                  <li pn="section-toc.1-1.4.2.1.2.1">
                    <t indent="0" pn="section-toc.1-1.4.2.1.2.1.1"><xref derivedContent="4.1.1" format="counter" sectionFormat="of" target="section-4.1.1"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-a-surge-of-volunteers">A Surge of Volunteers</xref></t>
                  </li>
                  <li pn="section-toc.1-1.4.2.1.2.2">
                    <t indent="0" pn="section-toc.1-1.4.2.1.2.2.1"><xref derivedContent="4.1.2" format="counter" sectionFormat="of" target="section-4.1.2"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-the-two-per-organization-li">The Two-per-Organization Limit</xref></t>
                  </li>
                  <li pn="section-toc.1-1.4.2.1.2.3">
                    <t indent="0" pn="section-toc.1-1.4.2.1.2.3.1"><xref derivedContent="4.1.3" format="counter" sectionFormat="of" target="section-4.1.3"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-one-year-of-participation">One Year of Participation</xref></t>
                  </li>
                </ul>
              </li>
              <li pn="section-toc.1-1.4.2.2">
                <t indent="0" pn="section-toc.1-1.4.2.2.1"><xref derivedContent="4.2" format="counter" sectionFormat="of" target="section-4.2"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-disruptive-candidates">Disruptive Candidates</xref></t>
              </li>
              <li pn="section-toc.1-1.4.2.3">
                <t indent="0" pn="section-toc.1-1.4.2.3.1"><xref derivedContent="4.3" format="counter" sectionFormat="of" target="section-4.3"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-additional-remedies">Additional Remedies</xref></t>
              </li>
            </ul>
          </li>
          <li pn="section-toc.1-1.5">
            <t indent="0" pn="section-toc.1-1.5.1"><xref derivedContent="5" format="counter" sectionFormat="of" target="section-5"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-iana-considerations">IANA Considerations</xref></t>
          </li>
          <li pn="section-toc.1-1.6">
            <t indent="0" pn="section-toc.1-1.6.1"><xref derivedContent="6" format="counter" sectionFormat="of" target="section-6"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-references">References</xref></t>
            <ul bare="true" empty="true" indent="2" spacing="compact" pn="section-toc.1-1.6.2">
              <li pn="section-toc.1-1.6.2.1">
                <t indent="0" pn="section-toc.1-1.6.2.1.1"><xref derivedContent="6.1" format="counter" sectionFormat="of" target="section-6.1"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-normative-references">Normative References</xref></t>
              </li>
              <li pn="section-toc.1-1.6.2.2">
                <t indent="0" pn="section-toc.1-1.6.2.2.1"><xref derivedContent="6.2" format="counter" sectionFormat="of" target="section-6.2"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-informative-references">Informative References</xref></t>
              </li>
            </ul>
          </li>
          <li pn="section-toc.1-1.7">
            <t indent="0" pn="section-toc.1-1.7.1"><xref derivedContent="Appendix A" format="default" sectionFormat="of" target="section-appendix.a"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-nomcom-capture-calculations">NomCom Capture Calculations</xref></t>
            <ul bare="true" empty="true" indent="2" spacing="compact" pn="section-toc.1-1.7.2">
              <li pn="section-toc.1-1.7.2.1">
                <t indent="0" pn="section-toc.1-1.7.2.1.1"><xref derivedContent="A.1" format="counter" sectionFormat="of" target="section-appendix.a.1"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-no-per-organization-limit">No per-Organization Limit</xref></t>
              </li>
              <li pn="section-toc.1-1.7.2.2">
                <t indent="0" pn="section-toc.1-1.7.2.2.1"><xref derivedContent="A.2" format="counter" sectionFormat="of" target="section-appendix.a.2"/>.  <xref derivedContent="" format="title" sectionFormat="of" target="name-two-per-organization">Two per Organization</xref></t>
              </li>
            </ul>
          </li>
          <li pn="section-toc.1-1.8">
            <t indent="0" pn="section-toc.1-1.8.1"><xref derivedContent="" format="none" sectionFormat="of" target="section-appendix.b"/><xref derivedContent="" format="title" sectionFormat="of" target="name-acknowledgments">Acknowledgments</xref></t>
          </li>
          <li pn="section-toc.1-1.9">
            <t indent="0" pn="section-toc.1-1.9.1"><xref derivedContent="" format="none" sectionFormat="of" target="section-appendix.c"/><xref derivedContent="" format="title" sectionFormat="of" target="name-authors-address">Author's Address</xref></t>
          </li>
        </ul>
      </section>
    </toc>
  </front>
  <middle>
    <section anchor="introduction" numbered="true" removeInRFC="false" toc="include" pn="section-1">
      <name slugifiedName="name-introduction">Introduction</name>
      <t indent="0" pn="section-1-1"><xref target="RFC8713" format="default" sectionFormat="of" derivedContent="RFC8713"/> defines the process for the selection of the Internet Architecture
Board (IAB), Internet Engineering Steering Group (IESG), IETF Trust, and the
IETF LLC Directors. A key actor in the process is the Nominating Committee
(NomCom), which nominates a single candidate for each open position.  Nominations are subject to
confirmation by other bodies.</t>
      <t indent="0" pn="section-1-2">NomCom voting members are randomly selected from a pool of volunteers that have met certain eligibility requirements. Thus, it is important that members of the pool be IETF participants 
likely to have knowledge of IETF processes and practices. There are restrictions
to ensure that no more than two volunteers with the same primary affiliation are
chosen.</t>
      <t indent="0" pn="section-1-3"><xref section="4.14" sectionFormat="of" target="RFC8713" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.14" derivedContent="RFC8713"/> requires volunteers to have attended three of
the previous five meetings. In practice, this meant that the volunteer
picked up their registration badge at an in-person meeting. Current members of
the Internet Society Board of Trustees and bodies for which the NomCom nominates
members are ineligible.</t>
      <t indent="0" pn="section-1-4"><xref target="RFC8989" format="default" sectionFormat="of" derivedContent="RFC8989"/> specified an experiment in the wake of six consecutive fully online
meetings from 2020 to 2021, because the historic interpretation of the requirement
would have resulted in no eligible volunteers. It extended the meeting attendance
requirement to include logging in to at least one
session of a fully online IETF meeting.</t>
      <t indent="0" pn="section-1-5"><xref target="RFC8989" format="default" sectionFormat="of" derivedContent="RFC8989"/> also created two other tracks to obtain eligibility: (1) serving as a
working group chair or secretary in the past three years, and (2) being an author or
editor of an IETF Stream RFC in the past five years, which includes Internet-Drafts
in the RFC Editor queue.</t>
      <t indent="0" pn="section-1-6">This document discusses some of the first principles that inform the design of
NomCom eligibility, and makes recommendations on how the process of
attendance-based qualification should work.</t>
      <t indent="0" pn="section-1-7">This document replaces the attendance criteria in the first two paragraphs of
<xref section="4.14" sectionFormat="of" target="RFC8713" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.14" derivedContent="RFC8713"/> with the criteria described in <xref target="RFC8989" format="default" sectionFormat="of" derivedContent="RFC8989"/>, and it obsoletes RFC 8989 to clarify that the document has been superseded. All
other text in <xref target="RFC8713" format="default" sectionFormat="of" derivedContent="RFC8713"/>, including the other paragraphs of Section <xref target="RFC8713" sectionFormat="bare" section="4.14" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.14" derivedContent="RFC8713"/>,
      remains unchanged.</t>
      <t indent="0" pn="section-1-8">
<xref target="RFC8788" format="default" sectionFormat="of" derivedContent="RFC8788"/> established procedures for the 2020-2021 NomCom. While, by definition, <xref target="RFC8788" format="default" sectionFormat="of" derivedContent="RFC8788"/> does not apply to future NomComs, this document formally obsoletes it.
      </t>
    </section>
    <section anchor="nomcom-principles" numbered="true" removeInRFC="false" toc="include" pn="section-2">
      <name slugifiedName="name-nomcom-principles">NomCom Principles</name>
      <t indent="0" pn="section-2-1">The NomCom is intended to be composed of randomly selected members of "the
community." For many years, in-person attendance was a reasonable proxy for the
commitment associated with being a member. Two days of travel and an attendance
fee is a relatively large expenditure of time and money. Additionally, in-person
attendance is thought to increase personal familiarity with candidates for
leadership positions and with the spirit of the IETF, although there is no
mechanism to ensure any interaction.</t>
      <t indent="0" pn="section-2-2">A basic principle of the IETF is that the community should govern itself, so volunteers
must have a demonstrated commitment to the IETF. Limiting the number of
volunteers sponsored by any one organization avoids the potential for mischief
that disrupts IETF operations or works against the interests of the community as
a whole.</t>
      <t indent="0" pn="section-2-3">A requirement for in-person attendance has always excluded some from 
   qualifying for the NomCom. However, as attitudes to business travel evolve and remote meeting technology
continues to improve, many longstanding community members are choosing
to participate remotely (due to cost or personal reasons). In addition, the NomCom has completed two cycles using entirely online tools.</t>
      <t indent="0" pn="section-2-4">Expanding the attendance requirement to include remote attendance lowers the barriers to entry. As the IETF has
historically provided a fee-free remote participation option, via waiver or
otherwise, the only required investment is to log on once per meeting at a
specific time (sometimes a locally inconvenient hour). While this document
does not formally impose a requirement for the NomCom to function entirely
remotely, including remote-only attendees in the pool is likely to effectively
require a remote component to NomCom operations.</t>
      <t indent="0" pn="section-2-5">Finally, overly restrictive criteria work against getting a broad talent pool.</t>
    </section>
    <section anchor="criteria" numbered="true" removeInRFC="false" toc="include" pn="section-3">
      <name slugifiedName="name-criteria">Criteria</name>
      <t indent="0" pn="section-3-1">The following text replaces the first two paragraphs of
<xref section="4.14" sectionFormat="of" target="RFC8713" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.14" derivedContent="RFC8713"/>:</t>
      <blockquote pn="section-3-2">
        <t indent="0" pn="section-3-2.1">Members of the IETF community must satisfy the conditions in one of three paths
in order to volunteer. Any one of the paths is sufficient, unless the person is
otherwise disqualified under <xref section="4.15" sectionFormat="of" target="RFC8713" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.15" derivedContent="RFC8713"/>.</t>
        <ol type="Path %d:" indent="adaptive" spacing="normal" start="1" pn="section-3-2.2">
<li pn="section-3-2.2.1" derivedCounter="Path 1:">The person has registered for and attended three out of the last five IETF
meetings, either in-person or online. In-person attendance is as determined by
the record keeping of the Secretariat. Online attendance is based on being a
registered person who logged in for at least one session of an IETF meeting.</li>
          <li pn="section-3-2.2.2" derivedCounter="Path 2:">The person has been a Working Group Chair or Secretary within the three years
prior to the day the call for NomCom volunteers is sent to the community.</li>
          <li pn="section-3-2.2.3" derivedCounter="Path 3:">The person has been a listed author or editor on the front page of at least two
IETF Stream RFCs within the last five years prior to the day the call for
NomCom volunteers is sent to the community. An Internet-Draft that has been
approved by the IESG and is in the RFC Editor queue counts the same as a
published RFC, with the relevant date being the date the draft was added to the
RFC Editor queue. For avoidance of doubt, the five-year timer extends back to
the date five years before the date when the call for NomCom volunteers is sent
to the community.</li>
        </ol>
      </blockquote>
    </section>
    <section anchor="security-considerations" numbered="true" removeInRFC="false" toc="include" pn="section-4">
      <name slugifiedName="name-security-considerations">Security Considerations</name>
      <section anchor="nomcom-capture" numbered="true" removeInRFC="false" toc="include" pn="section-4.1">
        <name slugifiedName="name-nomcom-capture">NomCom Capture</name>
        <t indent="0" pn="section-4.1-1">The most potent threat associated with NomCom eligibility is that an
organization or group of coordinating organizations could attempt to obtain a
majority of NomCom positions, in order to select an IETF leadership in support
of an agenda that might be self-serving and against the interests of the
community as a whole.</t>
        <t indent="0" pn="section-4.1-2">Note that <xref target="RFC8713" format="default" sectionFormat="of" derivedContent="RFC8713"/> lets the NomCom Chair decide the NomCom voting
requirement, so a simple majority may be inadequate. However, seven of ten forms
a quorum, so at worst seven NomCom members working together can almost certainly
impose their will.</t>
        <t indent="0" pn="section-4.1-3">Whatever the merits of admitting remote attendees, it reduces the minimum cost
of creating a NomCom-eligible volunteer from three in-person trips of around
five days each over the course of at least eight months, to zero financial cost
and the time required to log in three times over at least eight months. Some
organizations might not be deterred in either case, while others might.</t>
        <section anchor="a-surge-of-volunteers" numbered="true" removeInRFC="false" toc="include" pn="section-4.1.1">
          <name slugifiedName="name-a-surge-of-volunteers">A Surge of Volunteers</name>
          <t indent="0" pn="section-4.1.1-1">A large number of legitimate volunteers makes it quite difficult to control a majority of NomCom slots. Setting aside limitations on the number of selections from
any organization, basic probability shows that to have even a 50% chance of
controlling six or more NomCom positions, an attacker needs roughly 60% of the
volunteer pool. For example, if there are 300 "legitimate" volunteers, an
attacker must produce 365 volunteers to exceed a 50% chance of NomCom capture
(see <xref target="capture-math" format="default" sectionFormat="of" derivedContent="Appendix A"/>).</t>
          <t indent="0" pn="section-4.1.1-2">A sudden surge in the number of volunteers, particularly of people that no one
recognizes as a part of the community, is an early-warning sign of an attempt at capture. Anyone with
concerns about the integrity of the process should bring those concerns to the
IESG to investigate. Where needed, the confirming bodies can take action to invalidate such candidates as defined in <xref target="RFC8713" sectionFormat="of" section="3.7.3" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-3.7.3" derivedContent="RFC8713"/>.</t>
          <t indent="0" pn="section-4.1.1-3">While loosening eligibility criteria lowers the cost to an attacker of producing eligible volunteers, it also increases the number of legitimate volunteers which
increases the difficulty of an attack.</t>
        </section>
        <section anchor="the-two-per-organization-limit" numbered="true" removeInRFC="false" toc="include" pn="section-4.1.2">
          <name slugifiedName="name-the-two-per-organization-li">The Two-per-Organization Limit</name>
          <t indent="0" pn="section-4.1.2-1">The two-per-organization limit described in <xref target="RFC8713" sectionFormat="of" section="4.17" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.17" derivedContent="RFC8713"/> complicates such a capture attack.  To
	  circumvent it, an organization would have to do one or more of the following:</t>
          <ol spacing="normal" type="1" indent="adaptive" start="1" pn="section-4.1.2-2">
<li pn="section-4.1.2-2.1" derivedCounter="1.">coordinate with at least two like-minded organizations to produce a NomCom majority,</li>
            <li pn="section-4.1.2-2.2" derivedCounter="2.">incentivize members of other organizations (possibly through a funding agreement) to support its 
agenda, and/or</li>
            <li pn="section-4.1.2-2.3" derivedCounter="3.">propose candidates with false affiliations.</li>
          </ol>
          <t indent="0" pn="section-4.1.2-3">While the IETF does not routinely confirm the affiliation of volunteers, as part
of an investigation it could eliminate volunteers who have misrepresented said
affiliation. Publishing the list of volunteers and affiliations also gives the
community an opportunity to review the truth of such claims.</t>
          <t indent="0" pn="section-4.1.2-4">Assuming that 300 legitimate volunteers are all from different organizations,
three conspiring organizations would need 771 volunteers (257 per organization)
for a 50% chance of NomCom capture (see <xref target="capture-math" format="default" sectionFormat="of" derivedContent="Appendix A"/>).</t>
        </section>
        <section anchor="one-year-of-participation" numbered="true" removeInRFC="false" toc="include" pn="section-4.1.3">
          <name slugifiedName="name-one-year-of-participation">One Year of Participation</name>
          <t indent="0" pn="section-4.1.3-1">Attendance at three meetings requires at least eight months of waiting. Given
the volume of volunteers necessary to capture the process, an attack requires a
surge in attendees over the course of a year. Such a surge might trigger a
community challenge to the list of eligible volunteers, and/or a leadership
investigation to detect suspicious behavior (e.g., logging in to a single
session and then immediately logging out). In the event of abuse of process, the
leadership would then have months to adjust policy in response before the NomCom
cycle begins, and/or disqualify candidates.</t>
        </section>
      </section>
      <section anchor="disruptive-candidates" numbered="true" removeInRFC="false" toc="include" pn="section-4.2">
        <name slugifiedName="name-disruptive-candidates">Disruptive Candidates</name>
        <t indent="0" pn="section-4.2-1">Note that counting remote participation towards NomCom eligibility allows
for a single individual to mount an attack that previously required
coordination. By registering for remote attendance to IETF meetings using a
number of different identities over a year, an individual can make each of those
identities NomCom eligible and then serve under any one of them that is selected
for the NomCom. Once selected, an individual could seek to disrupt the process
or prevent the timely conclusion of its work. Less severely, an attacker could
simply improve their chances of being selected for NomCom.</t>
        <t indent="0" pn="section-4.2-2">This attack is much harder to detect or prevent than equivalent attacks were
previously, as it does not require coordination among multiple attendees.
While the attacker cannot be sure of fee waivers for some or all of the
different identities, the lower cost for remote participation also makes this
attack more feasible than it would have been under prior rules.</t>
        <t indent="0" pn="section-4.2-3">However, the voting member recall procedure in <xref section="5.7" sectionFormat="of" target="RFC8713" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-5.7" derivedContent="RFC8713"/> exists
to allow removal and replacement of disruptive figures.</t>
      </section>
      <section anchor="additional-remedies" numbered="true" removeInRFC="false" toc="include" pn="section-4.3">
        <name slugifiedName="name-additional-remedies">Additional Remedies</name>
        <t indent="0" pn="section-4.3-1">Additional changes to the process to further obstruct attacks against the
NomCom are beyond the scope of this document. However, a challenge process
against volunteers with a suspicious reported affiliation, or that might be
aliases of a single volunteer, could trigger an investigation.</t>
        <t indent="0" pn="section-4.3-2">Similarly, the challenge to the random selection described in
<xref section="4.17" sectionFormat="of" target="RFC8713" format="default" derivedLink="https://rfc-editor.org/rfc/rfc8713#section-4.17" derivedContent="RFC8713"/> can explicitly include appeals against the data
used to qualify the volunteer, rather than the randomization process.</t>
      </section>
    </section>
    <section anchor="iana-considerations" numbered="true" removeInRFC="false" toc="include" pn="section-5">
      <name slugifiedName="name-iana-considerations">IANA Considerations</name>
      <t indent="0" pn="section-5-1">This document has no IANA actions.</t>
    </section>
  </middle>
  <back>
    <references pn="section-6">
      <name slugifiedName="name-references">References</name>
      <references pn="section-6.1">
        <name slugifiedName="name-normative-references">Normative References</name>
        <reference anchor="RFC8713" target="https://www.rfc-editor.org/info/rfc8713" quoteTitle="true" derivedAnchor="RFC8713">
          <front>
            <title>IAB, IESG, IETF Trust, and IETF LLC Selection, Confirmation, and Recall Process: Operation of the IETF Nominating and Recall Committees</title>
            <author fullname="M. Kucherawy" initials="M." role="editor" surname="Kucherawy"/>
            <author fullname="R. Hinden" initials="R." role="editor" surname="Hinden"/>
            <author fullname="J. Livingood" initials="J." role="editor" surname="Livingood"/>
            <date month="February" year="2020"/>
            <abstract>
              <t indent="0">The process by which the members of the IAB and IESG, some Trustees of the IETF Trust, and some Directors of the IETF Administration LLC (IETF LLC) are selected, confirmed, and recalled is specified in this document. This document is based on RFC 7437. Only those updates required to reflect the changes introduced by IETF Administrative Support Activity (IASA) 2.0 have been included. Any other changes will be addressed in future documents.</t>
              <t indent="0">This document obsoletes RFC 7437 and RFC 8318.</t>
            </abstract>
          </front>
          <seriesInfo name="BCP" value="10"/>
          <seriesInfo name="RFC" value="8713"/>
          <seriesInfo name="DOI" value="10.17487/RFC8713"/>
        </reference>
      </references>
      <references pn="section-6.2">
        <name slugifiedName="name-informative-references">Informative References</name>
        <reference anchor="RFC8788" target="https://www.rfc-editor.org/info/rfc8788" quoteTitle="true" derivedAnchor="RFC8788">
          <front>
            <title>Eligibility for the 2020-2021 Nominating Committee</title>
            <author fullname="B. Leiba" initials="B." surname="Leiba"/>
            <date month="May" year="2020"/>
            <abstract>
              <t indent="0">The 2020-2021 Nominating Committee (NomCom) is to be formed between the IETF 107 and IETF 108 meetings, and the issue of eligibility of who can serve on that NomCom needs clarification.  This document provides a one-time interpretation of the eligibility rules that is required for the exceptional situation of the cancellation of the in-person IETF 107 meeting.  This document only affects the seating of the 2020-2021 NomCom and any rules or processes that relate to NomCom eligibility before IETF 108; it does not set a precedent to be applied in the future.</t>
            </abstract>
          </front>
          <seriesInfo name="BCP" value="10"/>
          <seriesInfo name="RFC" value="8788"/>
          <seriesInfo name="DOI" value="10.17487/RFC8788"/>
        </reference>
        <reference anchor="RFC8989" target="https://www.rfc-editor.org/info/rfc8989" quoteTitle="true" derivedAnchor="RFC8989">
          <front>
            <title>Additional Criteria for Nominating Committee Eligibility</title>
            <author fullname="B. Carpenter" initials="B." surname="Carpenter"/>
            <author fullname="S. Farrell" initials="S." surname="Farrell"/>
            <date month="February" year="2021"/>
            <abstract>
              <t indent="0">This document defines a process experiment under RFC 3933 that temporarily updates the criteria for qualifying volunteers to participate in the IETF Nominating Committee.  It therefore also updates the criteria for qualifying signatories to a community recall petition.  The purpose is to make the criteria more flexible in view of increasing remote participation in the IETF and a reduction in face-to-face meetings.  The experiment is of fixed duration and will apply to one, or at most two, consecutive Nominating Committee cycles, starting in 2021.  This document temporarily varies the rules in RFC 8713.</t>
            </abstract>
          </front>
          <seriesInfo name="RFC" value="8989"/>
          <seriesInfo name="DOI" value="10.17487/RFC8989"/>
        </reference>
      </references>
    </references>
    <section anchor="capture-math" numbered="true" removeInRFC="false" toc="include" pn="section-appendix.a">
      <name slugifiedName="name-nomcom-capture-calculations">NomCom Capture Calculations</name>
      <t indent="0" pn="section-appendix.a-1"><xref target="security-considerations" format="default" sectionFormat="of" derivedContent="Section 4"/> offers some mathematical results for the probability
of NomCom capture. This appendix shows the work.</t>
      <t indent="0" pn="section-appendix.a-2">Note that the number of combinations of b items chosen from a population of a
      items is often expressed as</t>
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          <artwork type="ascii-art" align="center" pn="section-appendix.a-3.1.2">⎛a⎞      a!
⎜ ⎟ = ────────
⎝b⎠   (a-b)!b!
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      <section anchor="no-per-organization-limit" numbered="true" removeInRFC="false" toc="include" pn="section-appendix.a.1">
        <name slugifiedName="name-no-per-organization-limit">No per-Organization Limit</name>
        <t indent="0" pn="section-appendix.a.1-1"><xref target="no-per-organization-limit" format="default" sectionFormat="of" derivedContent="Appendix A.1"/> assumes there is no limitation on the number of volunteers from a given organization. <xref target="two-per-organization" format="default" sectionFormat="of" derivedContent="Appendix A.2"/>  assumes that no single organization produces more than two volunteers.</t>
        <t indent="0" pn="section-appendix.a.1-2">Let L be the number of "legitimate" volunteers (i.e., those not allied with an
attacker) and A be the number of attacking volunteers. Then there are the following ways to select a NomCom:</t>
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            <artwork type="ascii-art" align="center" pn="section-appendix.a.1-3.1.2">⎛L+A⎞
⎜   ⎟
⎝ 10⎠
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        <t indent="0" pn="section-appendix.a.1-4">The number of outcomes where attackers capture the
	NomCom is:</t>
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            <artwork type="ascii-art" align="center" pn="section-appendix.a.1-5.1.2">10
——
╲  ⎡⎛A⎞ ⎛ L  ⎞⎤
╱  ⎢⎜ ⎟ ⎜    ⎟⎥
—— ⎣⎝i⎠ ⎝10-i⎠⎦
i=6
</artwork>
          </artset>
        </figure>
        <t indent="0" pn="section-appendix.a.1-6">Therefore, the probability of capture is</t>
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            <artwork type="ascii-art" align="center" pn="section-appendix.a.1-7.1.2">10 ⎛A⎞ ⎛ L  ⎞
—— ⎜ ⎟ ⎜    ⎟
╲  ⎝i⎠ ⎝10-i⎠
╱  ──────────
——  ⎛L + A⎞
i=6 ⎜     ⎟
    ⎝  10 ⎠
</artwork>
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        </figure>
        <t indent="0" pn="section-appendix.a.1-8">For L = 300, this probability crosses 50% at A = 365.</t>
      </section>
      <section anchor="two-per-organization" numbered="true" removeInRFC="false" toc="include" pn="section-appendix.a.2">
        <name slugifiedName="name-two-per-organization">Two per Organization</name>
        <t indent="0" pn="section-appendix.a.2-1">Assume that the population of L is drawn from L different organizations (this
assumption is unfavorable to the attacker). Assume also that there are three
conspiring organizations. Then no more than 6 members can be drawn from A.</t>
        <t indent="0" pn="section-appendix.a.2-2">Let B be the number of nominees per attacking organization, so that A = 3B.</t>
        <t indent="0" pn="section-appendix.a.2-3">The number of combinations to pick exactly N attackers, N &lt;= 6, is</t>
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            <artwork type="ascii-art" align="center" pn="section-appendix.a.2-4.1.2">                min(N,2)⎡    min(2,N-i)                     ⎤
                   ——   ⎢        ——                         ⎥
       ⎛  L   ⎞    ╲    ⎢⎛B⎞     ╲     ⎛⎛B⎞ ⎛      B      ⎞⎞⎥
C(N) = ⎜      ⎟    ╱    ⎢⎜ ⎟     ╱     ⎜⎜ ⎟ ⎜             ⎟⎟⎥
       ⎝10 - N⎠    ——   ⎢⎝i⎠     ——    ⎝⎝j⎠ ⎝min(2, N-i-j)⎠⎠⎥
                   i=0  ⎣        j=0                        ⎦
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        <t indent="0" pn="section-appendix.a.2-5">And the probability of capture is</t>
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            <artwork type="ascii-art" align="center" pn="section-appendix.a.2-6.1.2">  C(6)
───────
6
——
╲
╱  C(i)
——
i=0
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        <t indent="0" pn="section-appendix.a.2-7">For L = 300, the A required to exceed a 50% probability of capture is 771.</t>
      </section>
    </section>
    <section anchor="acknowledgments" numbered="false" removeInRFC="false" toc="include" pn="section-appendix.b">
      <name slugifiedName="name-acknowledgments">Acknowledgments</name>
      <t indent="0" pn="section-appendix.b-1"><contact fullname="Brian Carpenter"/> and <contact fullname="Stephen Farrell"/> wrote RFC 8989, which provides the core of
this document.</t>
      <t indent="0" pn="section-appendix.b-2"><contact fullname="Luc André Burdet"/>, <contact fullname="Brian Carpenter"/>, and <contact fullname="Donald Eastlake"/> provided useful
editorial suggestions.</t>
    </section>
    <section anchor="authors-addresses" numbered="false" removeInRFC="false" toc="include" pn="section-appendix.c">
      <name slugifiedName="name-authors-address">Author's Address</name>
      <author initials="M." surname="Duke" fullname="Martin Duke">
        <organization showOnFrontPage="true">Google LLC</organization>
        <address>
          <email>martin.h.duke@gmail.com</email>
        </address>
      </author>
    </section>
  </back>
</rfc>
