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2024-07-11 Minutes of the Code Signing Certificate Working Group

Attendees

Atsushi INABA - GlobalSign, Brian Winters - IdenTrust, Bruce Morton - Entrust, Corey Bonnell -DigiCert, Dean Coclin-DigiCert (checked in to start meeting call), Ian McMillan Microsoft, Inigo Barreira - Sectigo, Rebecca Kelley - SSL.com, Scott Rea - eMudhra, Thomas Zermeno - SSL.com, Tim Crawford - BDO, Wangmo Tenzing

Minutes

  1. Roll Call
    • Completed by Bruce
  2. Antitrust reminder
    • Completed by Bruce
  3. Approve prior meeting minutes – June 13th and June 27th (Brianca)
    • Minutes are not available for review and approval
    • Pushed to next meeting
  4. IPR review: CSC-25 Remove EV Guideline References (Dimitris)
    • Ballot has passed and IPR period set to complete on August 1, 2024
  5. IPR review: CSC-26 Time-stamp Requirements update (Martijn)
    • Ballot has passed and IPR period set to complete on August 1, 2024
  6. Simplifying EV (Tim)
    • Tim was not available on the call (pushing to next meeting)
    • No progress has been made currently, but CSC-25 completion will simplify this effort
  7. Other business
    • Ian volunteered to provide draft language for reducing the signing certificate max validity from 39 months to 15 months as previously discussed by the group
    • Draft to be shared in next meeting
    • No other business
  8. Next meeting – July 25th
  9. 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).