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2023-08-10 Minutes of the Code Signing Certificate Working Group

Attendees: Abhishek Bhat (eMudhra), Andrea Holland (VikingCloud), Ben Dewberry (Keyfactor), Brianca Martin (Amazon), Corey Bonnell (DigiCert), Dean Coclin (DigiCert), Ian McMillan (Microsoft), Inaba Atsushi (GlobalSign), Martijn Katerbarg (Sectigo), Mohit Kumar (GlobalSign), Rollin Yu (TrustAsia Technologies, Inc.), Scott Rea (eMudhra), Tim Hollebeek (DigiCert), Tomas Gustavsson (PrimeKey)

Note Well: The Note Well was read.

Approval of Minutes: July 27th minutes are approved.

Interested Party application: Waiting on news from Adobe regarding their application.

Ballot Status:

  • Incorporating BR references
  • Ballot has passed and is now in IPR review period.
  • Signing Service
  • Bruce is out this week as such there’s no update on this ballot.
  • Timestamping changes ballot
  • Ian and Bruce are working on this language. Language needs to be tweaked with some additional clarifications
  • Ian poses the question if we need to specify how audit criteria around key destruction should be collected. Corey mentioned he believes there’s already guidance available for auditors on the WebTrust front.

Presentation on Certificate Transparency

Tim Hollebeek ran a presentation on CT for Code Signing. Slides of this presentation are attached to these minutes.

Gather information for a Lessons Learned after hardware requirement changes

  • Ben mentioned an issue that was noticed signing Office Macros. Ian will look into it as it appears to be a Microsoft restriction

Any Other Business

Next Meeting

August 24th

Latest releases
Server Certificate Requirements
SC100: DNSSEC Clarification and Consolidation - Sep 7, 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
v1.0.16 - Ballot SMC018 - Sep 29, 2026

This ballot implements the requirements of CCADB Policy Section 6.3 relating to cross-certificates into the S/MIME BR effective immediately. The ballot also specifies that effective July 1, 2027 id-kp-emailProtection (mandatory) and the id-kp-clientAuth (optional) are the only extKeyUsage (EKU) permitted in both Subordinate CA Certificates and Subscriber Certificates. Finally, the ballot clarifies in the Definitions that Legacy Generation profiles were deprecated effective July 15, 2025. This ballot is proposed by Stephen Davidson (DigiCert) and endorsed by Dustin Hollinback (Apple) and Ashish Dhiman (GlobalSign)

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).