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2022-10-06 Minutes of the Code Signing Certificate Working Group

Attendees

Atsushi Inaba (GlobalSign), Bruce Morton (Entrust), Corey Bonnell (DigiCert), Dimitris Zacharopoulos (HARICA), Ian McMillan (Microsoft), Inigo Barreira (Sectigo), Martijn Katerbarg (Sectigo), Michael Sykes (SSL.com), Mohit Kumar (GlobalSign)

Minutes

  1. Antitrust statement was read.
  2. Approval of prior meeting minutes: Minutes for 22 September 2022 were approved.
  3. Ballot Status:
    1. CSC 15: IPR review ended 18 September 2022, so is now complete.
    2. CSC 17: Passed and is not in IPR period until 27 October 2022.
    3. Special election ballot: Passed, so Dean Coclin will be Chair for another term.
  4. Malware proposal (Martijn): Long discussion about the process and the number of days and the procedure when the CA receives notification about a certificate associated with signed malware. Martijn will update the proposal and forward for review.
  5. Signing Service discussion (Bruce/Corey): Signing Service update will be discussed at the F2F in Berlin.
  6. Timestamping Ballot (Ian): Ina would like to hold off discussion on time-stamping until after we have resolved the malware proposal and the Signing Service update.
  7. Planning for F2F: Decided we would have 1) Status Update, 2) Signing Service update discussion, and 3) Forward Vision discussion for the next 2 years.
  8. Other business: Discussed rationalizing the CSBRs to remove callout to SSL BRs. Dimitris will lead this effort with Corey and Bruce volunteering to support.
  9. Next Meeting – 20 October was cancelled. Next meeting will be at the F2F in Berlin the week of 24 October 2022.
  10. 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).