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2025-01-30 Minutes of the Server Certificate Working Group

Attendance

Aaron Gable (Let’s Encrypt), Aaron Poulsen (Amazon), Alexander Truskovsky (AWS), Antti Backman (Telia Company), Ben Wilson (Mozilla), Bineesh Ambali Vadakkekandi (Microsoft), Brianca Martin (Amazon), Chad Dandar (Cisco Systems), Chris Clements (Google), Clint Wilson (Apple), Corey Bonnell (DigiCert), Corey Rasmussen (OATI), Cynethia Brown (US Federal PKI Management Authority), David Kluge (Google), Dean Coclin (DigiCert), Dimitris Zacharopoulos (HARICA), Doug Beattie (GlobalSign), Dustin Hollenback (Microsoft), Enrico Entschew (D-TRUST), Gregory Tomko (GlobalSign), Hazhar Ismail (MSC Trustgate Sdn Bhd), Hogeun Yoo (NAVER Cloud Trust Services), Inaba Atsushi (GlobalSign), Jeff Ward (Aprio), Johnny Reading (GoDaddy), Jos Purvis (Fastly), Josselin Allemandou (Certigna (DHIMYOTIS)), Kateryna Aleksieieva (Asseco Data Systems SA (Certum)), Kiran Tummala (Microsoft), Li-Chun Chen (Chunghwa Telecom), Llew Curran (GoDaddy), Luis Cervantes (SSL.com), Lynn Jeun (Visa), Mahua Chaudhuri (Microsoft), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Michelle Coon (OATI), Mrugesh Chandarana (IdenTrust), Nargis Mannan (VikingCloud), Nate Smith (GoDaddy), Nicol So (CommScope), Nome Huang (TrustAsia), Pedro Fuentes (OISTE Foundation), Peter Miskovic (Disig), Rebecca Kelly (SSL.com), Rich Smith (DigiCert), Roman Fischer (SwissSign), Ryan Dickson (Google), Sandy Balzer (SwissSign), Scott Rea (eMudhra), Tadahiko Ito (SECOM Trust Systems), Tathan Thacker (IdenTrust), Thomas Zermeno (SSL.com), Tim Callan (Sectigo), Tobias Josefowitz (Opera Software AS), Trevoli Ponds-White (Amazon), Wayne Thayer (Fastly), Wendy Brown (US Federal PKI Management Authority), Yamian Quintero (Microsoft)

Read Note Well

Dimitris read the note well

Review Agenda

The agenda was approved.

Approval of minutes

The minutes for the teleconference of 16 January 2025 were approved.

Discussion

Ballot SC81: Reducing Validity and Data Reuse Period

  • The ballot is currently in the discussion period for at least two weeks.
  • Dimitris stated that HARICA is preparing a response.
  • Clint Wilson (Apple) confirmed that all questions in the GitHub issue and pull request had been addressed but invited further clarifications if needed.
  • Dimitris questioned the feasibility of reducing the re-validation period to ten days, particularly concerning email and phone-based validation methods.
  • Trevoli Ponds-White (Amazon Trust Services) argued that automation is possible, while Nicol So (CommScope) raised concerns about the burden on subscribers.
  • Tim Callan (Sectigo) suggested that the discussion on deprecating affected methods could take place separately within the available timeframe before the change takes effect in 2028.
  • Cynethia Brown (US Federal PKI Management Authority) had additional concerns but was experiencing network issues. She was encouraged to submit comments via the mailing list.

Ballots in IPR Review Period

  • SC83 (Winter Cleanup Ballot) and SC84 (DNS Label with ACME Account ID) are currently in the IPR review period.

Ballots Under Consideration

  • CA-Assisted Domain Validation

    A validation call was held last week, and Michael Slaughter (Amazon Trust Services) presented options. Further discussions are ongoing.

  • DNSSEC Validation and RFC 8657 CA Parameters

    Discussion on requiring DNSSEC for CAA records across all methods is ongoing. The validation subcommittee is drafting clearer language.

Any Other Business

None.

Next call

Next call: 13 February 2025 at 11:00 am Eastern Time

Adjourn

Meeting adjourned.

Latest releases
Server Certificate Requirements
SC095v3: Clean-up 2025 - Apr 2, 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
v1.0.14 - Ballot SMC016 - May 5, 2026

This ballot maintains consistency between the S/MIME Baseline Requirements and the TLS Baseline Requirements with changes introduced by Ballots SC096 and SC097. Specifically, this ballot: Creates a carve-out of the logging requirements for DNSSEC specifically, stating these are not in scope. For audit purposes, change management logging is able to confirm if the appropriate controls are in effect or not. Sunsets all remaining use of SHA-1 signatures in Certificates and CRLs. It is noted that most uses of SHA-1 signatures are already deprecated by SC097. With this ballot, all unexpired Subordinate CA Certificates issuing S/MIME containing the SHA-1 signature algorithm must be revoked. This proposal does not prohibit the use of SHA-1 to generate issuerKeyHash or issuerNameHash values as currently required by RFC 5019. Includes minor formatting corrections.

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

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