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2023-04-06 Minutes of the Code Signing Certificate Working Group

Attendees

Atsushi Inaba (Globalsign), Ben Dewberry (Keyfactor), Brianca Martin (Amazon), Corey Bonnell (DigiCert), Dean Coclin (DigiCert), Dimitris Zacharopoulos (HARICA), Janet Hines (Viking Cloud), Martijn Karterbarg (Sectigo), Mohit Kumar (Globalsign), Tim Crawford (BDO), Tomas Gustavson (Keyfactor)

Minutes

Minute taker: Dean Coclin

  1. The Anti-Trust summary was read
  2. Three sets of prior meeting minutes were approved: F2F, March 9 and March 23.
  3. Malware based revocation: Martijn stated that this was ready for ballot. The PR on github has been created. CSCWG 18 is the ballot number. Martijn will send out a summary and proposed ballot.
  4. Signing Service Update: Bruce was unable to attend, hence this topic was tabled until the next call
  5. Removing SSL BR references: Dimitris reviewed some of the changes to the BRs. Martijn agreed to help divide the upcoming work. Various sections were reviewed and updated in the document which Dimitris is maintaining on Git. All the modifications can be found on the Git repository. We expect to consider the import of the BRs at the next meeting. Following this, we will work on the references to the EV guidelines.
  6. Next meeting on April 20th.
Latest releases
Server Certificate Requirements
SC095v3: Clean-up 2025 - Apr 2, 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
v1.0.14 - Ballot SMC016 - May 5, 2026

This ballot maintains consistency between the S/MIME Baseline Requirements and the TLS Baseline Requirements with changes introduced by Ballots SC096 and SC097. Specifically, this ballot: Creates a carve-out of the logging requirements for DNSSEC specifically, stating these are not in scope. For audit purposes, change management logging is able to confirm if the appropriate controls are in effect or not. Sunsets all remaining use of SHA-1 signatures in Certificates and CRLs. It is noted that most uses of SHA-1 signatures are already deprecated by SC097. With this ballot, all unexpired Subordinate CA Certificates issuing S/MIME containing the SHA-1 signature algorithm must be revoked. This proposal does not prohibit the use of SHA-1 to generate issuerKeyHash or issuerNameHash values as currently required by RFC 5019. Includes minor formatting corrections.

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).