Certificate Signing Certificate Working Group (CSCWG) – Meeting Minutes

Date: August 21, 2025

1. Note Well

The Note Well was read.

2. Review of Agenda

• No additions requested.

3. Interested Party Application: Joshua Garrett

• IPR received. No objections on the call. Application approved.

4. Discussion Topics

a) Progress update on Validity Reduction ballot

• Nate (Microsoft): Still seeking a second endorser; thread was sent a few weeks ago.
• Scott Rea (eMudhra): Likely to endorse; will confirm within a day after reviewing additional info.
• Next steps: Upon second endorsement, start the discussion period.

b) SC-Alignment ballot – Microsoft concerns on OCSP

• Karina (Microsoft): Will draft proposed changes regarding OCSP items and circulate for pre-discussion.
• Group discussed options:
  • Split OCSP changes into a separate ballot, restart alignment ballot without them, or
  • Incorporate Microsoft’s edits into a single revised ballot.
• Karina to send draft; group to decide path based on feedback.

c) Request from external parties to present at the next F2F

• Proposed speakers:
  • Royal Canadian Mounted Police (RCMP)
  • Canadian Centre for Cyber Security (CCCS)
  • Private-sector partner / security researcher (prefers pseudonymous handle)
• General support from the group to invite them (topic: malware and the impact of code signing).
• Discussion on participation terms:
  • Historically, invited guests observers only (not part of discussions); IPR typically not required.
  • New “invited experts agreement” may apply; status to be checked.
• Next steps: Martijn to raise at Forum level (with Dean) to confirm process/agreements; proceed with invitations absent objections.
• Clarification: Researcher is pseudonymous, not attempting anonymity.

5. Any Other Business

Suggestion to work through backlog:

• Cleanup ballot(s)
• Alignment ballot(s)
• Review open GitHub issues

6. Adjourn

Attendees

Brianca Martin (Amazon), Brian Winters (IdenTrust), Dean Coclin (DigiCert), Inaba Atsushi (GlobalSign), Karina Sirota (Microsoft), Kateryna Aleksieieva (Asseco Data Systems SA (Certum)), Luis Cervantes (SSL.com), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Nate Santiago (Microsoft), Nome Huang (TrustAsia), Rebecca Kelly (SSL.com), Scott Rea (eMudhra), Thomas Zermeno (SSL.com), Wiktoria Więckowska (Asseco Data Systems SA (Certum))