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2025-05-22 Minutes of the Server Certificate Working Group

CA/B Forum Server Certificate WG Teleconference-20250522

Meeting Title: CA/Browser Forum Server Certificate WG

Date: 22 May 2025 Chair: Wayne Thayer on belalf of Dimitris Zacharopoulos

Minutes Taken By: Lynn Jeun

1. Roll Call

Meeting called to order by Wayne Thayer; Begin recording.

2. Note-well

Note-well read by Wayne.

3. Review Agenda

No changes to the agenda.

4. Approval of Minutes

May 8, 2025 - Minutes was approved. April 10th – still pending.

5. Membership applications

Markmonitor Inc. : Application as Interested Party is approved without objections.

6. Ballot Status

SC086: Sunset the Inclusion of Address and Routing Parameter Area Names (Corey) – in Discussion Period No ballots in voting period and under IPR review SC081v3: Introduce Schedule of Reducing Validity and Data Reuse Periods – Closed IPR review, available on the website. Draft/Under Considerations

  • Require DNSSEC for CAA and DCV Lookups (Henry, Clint) : will enter into the discussion period
  • CA Assisted Domain Validation (Slaughter) : Some changes were made, Discussed in the validation WG
  • Validation method in TLS Certificates (Clint) : Will go into the discussion period after F2F meeting
  • Process RFC 8657 CAA Parameters (Wayne) : Waiting for SC85 to be adopted

7. Next Call: June 5, 2025

Attendees

Aaron Gable (Let’s Encrypt), Aaron Poulsen (Amazon), Adam Jones (Microsoft), Adrian Mueller (SwissSign), Adriano Santoni (Actalis S.p.A.), Ben Wilson (Mozilla), Bineesh Ambali Vadakkekandi (Microsoft), Brianca Martin (Amazon), Chad Dandar (Cisco Systems), Clint Wilson (Apple), Cynethia Brown (US Federal PKI Management Authority), Dean Coclin (DigiCert), Enrico Entschew (D-TRUST), Eric Kramer (Sectigo), Gregory Tomko (GlobalSign), Hazhar Ismail (MSC Trustgate Sdn Bhd), Hogeun Yoo (NAVER Cloud Trust Services), Inaba Atsushi (GlobalSign), Iñigo Barreira (Sectigo), Jaime Hablutzel (OISTE Foundation), Janet Hines (VikingCloud), Jeanette Snook (Visa), Jeff Ward (Aprio), Johnny Reading (GoDaddy), Josselin Allemandou (Certigna (DHIMYOTIS)), Kateryna Aleksieieva (Asseco Data Systems SA (Certum)), Kate Xu (TrustAsia), Li-Chun Chen (Chunghwa Telecom), Lucy Buecking (IdenTrust), Luis Cervantes (SSL.com), Lynn Jeun (Visa), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Masaru Sakamoto (Cybertrust Japan), Michelle Coon (OATI), Mrugesh Chandarana (IdenTrust), Nargis Mannan (VikingCloud), Nate Smith (GoDaddy), Nicol So (CommScope), Nome Huang (TrustAsia), Peter Miskovic (Disig), Rebecca Kelly (SSL.com), Rich Smith (DigiCert), Rollin Yu (TrustAsia), Scott Rea (eMudhra), Tadahiko Ito (SECOM Trust Systems), Thomas Zermeno (SSL.com), Tim Callan (Sectigo), Tim Hollebeek (DigiCert), Tobias Josefowitz (Opera Software AS), Trevoli Ponds-White (Amazon), Tsung-Min Kuo (Chunghwa Telecom), Wayne Thayer (Fastly), Wendy Brown (US Federal PKI Management Authority).

Latest releases
Server Certificate Requirements
SC098: Process RFC 8657 CAA Parameters - Jun 16, 2026

Code Signing Requirements
v3.8 - Aug 5, 2024

What’s Changed CSC-25: Import EV Guidelines to CS Baseline Requirements by @dzacharo in https://github.com/cabforum/code-signing/pull/38 Full Changelog: https://github.com/cabforum/code-signing/compare/v3.7...v3.8

S/MIME Requirements
v1.0.15 - Ballot SMC017v2 - Jul 30, 2026

This ballot increases the minimum RSA key size for Root and Subordinate CA certificates in the S/MIME BRs from 2048 to 4096 bits for keys created after September 15, 2026, while retaining the 2048-bit minimum for Subscriber certificates. The ballot further requires that by September 15, 2027, CAs SHALL NOT issue Subscriber certificates from any Sub-CA whose RSA key modulus is less than 3072 bits, effectively sunsetting issuance from legacy 2048-bit Sub-CAs. The ballot also includes minor typographic corrections. This ballot is proposed by Martijn Katerbarg (Sectigo) and endorsed by Ben Wilson (Mozilla) and Stephen Davidson (DigiCert)

Network and Certificate System Security Requirements
Version 2.0.5 (Ballot NS-008) - Jul 9, 2025

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The Certification Authority Browser Forum (CA/Browser Forum) is a voluntary gathering of Certificate Issuers and suppliers of Internet browser software and other applications that use certificates (Certificate Consumers).