<html><head><style>p{margin-top:0px;margin-bottom:0px;}</style></head><body><div style="font-size:14px; font-family:NanumGothic,나눔고딕,sans-serif;"><div>NAVER BUSINESS PLATFORM votes YES on ballot SC33.</div><div></div><div>Regards,</div><div></div><div><div style="font-family: 나눔고딕, NanumGothic, 돋움, dotum, 굴림, Gulim, AppleGothic, sans-serif; font-size: 11px; line-height: 12px; color: rgb(152, 152, 152);">이 메일은 나눔글꼴로 작성되었습니다. <a href="http://hangeul.naver.com" target="_blank" style="color: rgb(67, 153, 226); text-decoration: underline;" rel="noreferrer noopener">설치하기</a><br><br></div><div style="width: 36px; height: 1px; margin-bottom: 15px; background-color: rgb(160, 160, 160);"></div><div style="line-height: 16px; font-family: 나눔고딕, NanumGothic, 돋움, dotum, 굴림, Gulim, AppleGothic, sans-serif;"><strong style="font-size: 13px; color: rgb(54, 54, 54); letter-spacing: -1px;">박한용</strong><span style="font-size: 11px; color: rgb(54, 54, 54);"> Park Han Yong</span><br><span style="font-size: 11px; color: rgb(137, 137, 137);">Security Platform</span><span style="font-size: 11px; color: rgb(137, 137, 137);"> / 개인정보보호담당자</span><br><br><div style="color: rgb(137, 137, 137);"><span style="font-family: 나눔고딕, NanumGothic, 돋움, dotum, 굴림, Gulim, AppleGothic, sans-serif; font-size: 11px; line-height: 14px;">경기도 성남시 분당구 분당내곡로 117 크래프톤타워 (우)13529</span><br><span style="font-family: tahoma; font-size: 11px; line-height: 14px; color: rgb(153, 153, 153);"><strong style="font-weight: bold; color: rgb(136, 136, 136);">Tel </strong><span style="font-size: 11px; color: rgb(153, 153, 153);">031-600-9174 </span><strong style="font-weight: bold; color: rgb(136, 136, 136);">Mobile </strong><span style="font-size: 11px; color: rgb(153, 153, 153);">010-4999-1265 </span><strong style="font-weight: bold; color: rgb(136, 136, 136);">Fax </strong><span style="font-size: 11px; color: rgb(153, 153, 153);">031-784-1800</span></span><br><span style="font-family: tahoma; font-size: 11px; color: rgb(153, 153, 153);"><strong style="font-weight: bold; color: rgb(136, 136, 136);">Email </strong><span style="font-size: 11px; color: rgb(153, 153, 153);"><a href="mailto:hanyong.park@navercorp.com" style="color: rgb(153, 153, 153); text-decoration: none;" rel="noreferrer noopener" target="_blank">hanyong.park@navercorp.com </a></span><br></span><br><span style="margin-right: -3px;"><a href="https://www.nbp-corp.com" target="_blank" rel="noreferrer noopener"><img align="absmiddle" src="https://static.navercorp.com/static/site/connect2/user/connect/signature/nbp.png" border="0" loading="lazy"></a></span></div></div></div><br><p style="font-size:10pt;font-family:sans-serif;padding:0 0 0 10pt"><span>-----Original Message-----</span><br><b>From:</b> "Wayne Thayer via Servercert-wg"<servercert-wg@cabforum.org> <br><b>To:</b> "CA/B Forum Server Certificate WG Public Discussion List"<servercert-wg@cabforum.org>; <br><b>Cc:</b> <br><b>Sent:</b> 2020. 8. 8. (토) 05:06 (GMT+09:00)<br><b>Subject:</b> [Servercert-wg] VOTING BEGINS: Ballot SC33: TLS Using ALPN Method<br> </p><div dir="ltr"><div dir="ltr"><div>This begins the voting period for ballot <span>SC33</span>: TLS Using ALPN Method</div><div> </div><div>Purpose of Ballot:</div><div> </div><div>In January 2018, a
vulnerability affecting the ACME TLS-SNI-01 method of domain validation
was disclosed [1]. That method is an implementation of BR 3.2.2.4.10,
which is still permitted by the BRs despite the vulnerability. Some
Browsers have banned the use of method 10 unless mitigations for the
vulnerability have been put into place, and one approach to mitigation -
using application-layer protocol negotiation (ALPN) - has now been
standardized by the IETF as RFC 8737. This ballot replaces the poorly
specified and potentially insecure 'method 10' with a new 'method 20'
based on RFC 8737.</div><div> </div><div>The ballot proposed no
transition period during which method 10, or validations performed using
method 10 may continue to be relied upon. The only known current use of
method 10 is an implementation of RFC 8737 that would remain compliant
(although it may require changes to the CA's CPS and the identifier of the
method that is being logged when performing validations). </div><div> </div><div>This
ballot also limits the use of the new method to the specific FQDN that
was validated - different subdomains require new validations, and
wildcards are not permitted. This requirement is not the result of a
specific known risk but rather stems from a belief that DNS-based
validation methods are more appropriate for verifying control over an
entire subdomain. </div><div> </div><div>[1] <a href="https://groups.google.com/d/msg/mozilla.dev.security.policy/RHsIInIjJA0/LKrNi35aAQAJ" target="_blank" rel="noreferrer noopener">https://groups.google.com/d/msg/mozilla.dev.security.policy/RHsIInIjJA0/LKrNi35aAQAJ</a></div><div> </div><div> </div><div><div dir="ltr">The following motion has been proposed by Wayne Thayer of
Mozilla and endorsed by Roland Shoemaker of Let's Encrypt and Tim Hollebeek of DigiCert. </div><div><br>-- MOTION BEGINS --<br><br>This
<span>ballot</span> modifies the “Baseline Requirements for the Issuance and
Management of Publicly-Trusted Certificates” as follows, based on
Version 1.7.0: </div><div> </div><div>MODIFY section 3.2.2.4 as defined in the following redline: <a href="https://github.com/cabforum/documents/compare/df5bd3b00e3a215202dedafa68bf8f608d47041b...26913aa7f75a78eff1af5cb628451b9433011a67" target="_blank" rel="noreferrer noopener">https://github.com/cabforum/documents/compare/df5bd3b00e3a215202dedafa68bf8f608d47041b...26913aa7f75a78eff1af5cb628451b9433011a67</a> </div><div> </div><div dir="ltr">-- MOTION ENDS --<br><br><br>This <span>ballot</span> proposes a Final Maintenance Guideline.<br><br>The procedure for approval of this <span>ballot</span> is as follows:<br><br>Discussion (7+ days)<br><br>Start Time: 31-July, 2020 17:00 UTC<br><br>End Time: not before 7-August, 2020 17:00 UTC </div><div dir="ltr"> </div><div dir="ltr">Vote for approval (7 days)<br><br>Start Time: 7-August, 2020 20:00 UTC<br><br>End Time: 14-August, 2020 20:00 UTC </div></div></div></div>
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