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2024-08-08 Minutes of the Code Signing Certificate Working Group

Attendees

Dean Coclin(DigiCert), Corey Bonnell (DigiCert), Inigo Barreira (Sectigo), Thomas Zermeno (SSL.com), Brianca Martin (Amazon), Martijn Katerbarg (Sectigo), Rebecca Kelley (SSL.com), Bruce Morton (Entrust), Trevoli Ponds-White (Amazon), Mohit Kumar (Globalsign), Tim Hollebeek (DigiCert), Scott Rea (eMudhra), Brian Winters (Identrust), Atsushi Inaba (Globalsign)

Minutes

  1. Antitrust reminder was read.
  2. Prior meeting minutes approved: July 11, July 25th. The June 27th minutes are pending approval for the next call.
  3. IPR review is completed for CSC-25.
  4. IPR review is completed for CSC-26.
  5. Ian was not on the call, so the validity period topic was not discussed. Brianca suggested that the unit of measure be “days” instead of “months”. This will be conveyed to Ian.
  6. SKI requirements question from Viktor Varga: This was acknowledged as an omission and will be added to a future clean-up ballot.
  7. Simplifying EV: Tim was not prepared to discuss today and suggested we postpone until Ian returns.
  8. Fall elections will be conducted at the Forum level. Chair nominations are open.
  9. No other business.
  10. Next meeting Aug 22nd. Dean will be away so Bruce will chair the call.
  11. Adjourn
Latest releases
Server Certificate Requirements
SC098: Process RFC 8657 CAA Parameters - Jun 16, 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
v1.0.15 - Ballot SMC017v2 - Jul 30, 2026

This ballot increases the minimum RSA key size for Root and Subordinate CA certificates in the S/MIME BRs from 2048 to 4096 bits for keys created after September 15, 2026, while retaining the 2048-bit minimum for Subscriber certificates. The ballot further requires that by September 15, 2027, CAs SHALL NOT issue Subscriber certificates from any Sub-CA whose RSA key modulus is less than 3072 bits, effectively sunsetting issuance from legacy 2048-bit Sub-CAs. The ballot also includes minor typographic corrections. This ballot is proposed by Martijn Katerbarg (Sectigo) and endorsed by Ben Wilson (Mozilla) and Stephen Davidson (DigiCert)

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).