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2025-05-29 Minutes of the Code Signing Certificate Working Group

Certificate Signing Certificate Working Group (CSCWG) – Meeting Minutes

Date: May 29, 2025

1. Antitrust Reminder

Martijn read the Note Well

2. Review of Agenda

  • No changes proposed.
  • No meeting minutes to approve today (pending from previous meeting).

3. Discussion Topics

Face-to-Face Agenda (June 12)

  • Participants are encouraged to bring forward topics.
  • Martijn proposed a focus on the long-standing “single profile” topic.
    • Nate agreed it’s a good focus.
    • Karina will be attending and leading.
    • Martijn to coordinate with Karina and Nate to align expectations.
  • Martijn mentioned a request from Canadian and Dutch law enforcement to present during an upcoming F2F (possibly October).
    • To be discussed in future meetings.
  • Attendees are encouraged to suggest other F2F agenda items via email.

Microsoft PQC Announcement

4. Ballot Updates

CSC-30 – Aligning CSCWG BRs with SCWG Ballots

  • Marco identified an issue in section 8.7.
  • Corey plans to incorporate the fix into CSC-30.
  • Plan is to start the discussion period on Monday, June 3.
  • Ballot will go to voting during or just after the F2F meeting.

PQC Draft Ballot

  • Nate confirmed Microsoft has reviewed and approved the current draft.
  • Sectigo has agreed to endorse.
  • One more endorser is still needed.
  • Corey invited participants to review and endorse.
  • If no endorsement is received before the F2F, will ask again then.
  • Martijn suggested running ballots sequentially to avoid conflicts.

5. Any Other Business

  • No additional items were raised.

6. Next Meeting

  • Scheduled as an in-person Face-to-Face (F2F) on June 12, 2025.
  • Participants encouraged to prepare and submit agenda items in advance.

7. Adjourn

Attendees

Brian Winters (IdenTrust), Bruce Morton (Entrust), Corey Bonnell (DigiCert), Inaba Atsushi (GlobalSign), Iñigo Barreira (Sectigo), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Nate Santiago (Microsoft), Nome Huang (TrustAsia), Roberto Quionones (Intel), Scott Rea (eMudhra)

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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