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2024-11-14 Minutes of the Code Signing Certificate Working Group

Attendees

Atsushi Inaba (GlobalSign); Brian Winters (IdenTrust); Corey Bonnell (DigiCert); Dean Coclin (DigiCert); Inigo Barreira (Sectigo); Luis Cervantes (SSL.com); Marco Schambach (IdenTrust); Martijn Katerbarg (Sectigo); Nome-Huang (TrustAsia); Rebecca Kelley (SSL.com); Roberto Quiñones (Intel); Thomas Zermeno (SSL.com); Yateesh Bhardwaj (Globalsign)

Prior meeting minutes

  • 10/10/24 by Kateryna Alexsieieva (Asseco)- posted 11/03/24 - approved
  • Minutes from 10/31/24 by Martijn - posted 11/11/24 - approved

Maximum validity of code signing certs

  • worked on by Ian; he’s a bit behind on that, hopes to get it into GitHub before Thanksgiving holiday
  • no comments on the ballot

Email from Bruce Morton (Entrust) 10/31/24

  • aligning the code signing BRs with SCWG BRs
  • Cory evaluated the ballot concerns
  • Ballot SC-73 - has some value with CSCWG
  • Ballot SC-75 - Pre-Sign linting - there is no linting created for CS at this time.
  • Ballot SC-76v2 -OCSP requirements - Microsoft removed their requirements. Martijn feels like we could follow the ballot; Corey agrees that the 15-minute rule has some value to Code Signing. There’s lots of pre-cert language in the ballot that does not relate to Code Signing.
  • Ballot SC-77 - Update Web Trust Audit name in Section 8.4 and references - already addressed
  • Ballot SC-78 - Subject organizationName - Martijn is checking to see if there are CS issues
  • Ballot SC 79v2 - allow more than one certificate policy - not relevant in CS environment.
  • Martijn mentioned a desired logging ballot; and will update the list with it, later.

Other business

  • New Chair starting 12/1/24 - Martijn and new Vice Chair Thomas
  • No meeting on 11/28 for Thanksgiving – Martijn will lead the meeting on 12/12; need to set new hosts for the WebEx meeting.
  • Dean gave a great farewell speech, and we all thanked him for his great service to the CSCWG
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).