Certificate Signing Certificate Working Group (CSCWG) – Meeting Minutes

Date: October 2, 2025

1. Note Well

Standard Note Well delivered (antitrust, code of conduct, IPR).

2. Review of Agenda

Agenda accepted as circulated. No minutes to approve today; recent minutes will be approved at the F2F.

3. Discussion Topics

Progress update on Validity Reduction ballot

• Discussion period is underway and expected to end tomorrow.
• Nate (Microsoft) to initiate the voting period (timing at proposer’s discretion) via a new list email.

Side note: Running multiple ballots concurrently across WGs is acceptable.

SC-Alignment ballot — Microsoft OCSP concerns

• Microsoft to clarify the specific OCSP concerns from the failed SC-alignment ballot.
• Lora: Karina will respond with details on Monday.
• Goal is to restart the ballot once concerns and any edits are known.

F2F planning

• CSCWG slot moved: meeting is on Friday, Oct 17, starting 11:00 local time (early morning for US time zones).
• Agenda items:
  • Presentation from Canadian law-enforcement and a cybersecurity researcher (~1 hour + ~30 min Q&A).
  • Open discussion that may surface new work items.
• Martijn will circulate a dedicated CSCWG F2F agenda in the coming days.
• Martijn is also drafting a ballot to align on a single profile (toward EV-style validation); volunteers welcome.

4. Any Other Business

None raised.

5. Adjourn

Next regular biweekly call is cancelled due to the F2F. Meeting adjourned.

Attendees

Brian Winters (IdenTrust), Corey Bonnell (DigiCert), Inaba Atsushi (GlobalSign), Iñigo Barreira (Sectigo), Lora Randolph (Microsoft), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Nate Santiago (Microsoft), Rebecca Kelly (SSL.com), Scott Rea (eMudhra), Thomas Zermeno (SSL.com), Tim Crawford (CPA Canada/WebTrust), Wiktoria Więckowska (Asseco Data Systems SA (Certum))