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2025-03-20 Minutes of the Code Signing Certificate Working Group

Minutes of CSCWG

March 20, 2025

Attendees

Brianca Martin (Amazon), Brian Winters (IdenTrust), Bruce Morton (Entrust), Corey Bonnell (DigiCert), Dean Coclin (DigiCert), Inaba Atsushi (GlobalSign), Iñigo Barreira (Sectigo), Kateryna Aleksieieva (Asseco Data Systems SA (Certum)), Marco Schambach (IdenTrust), Martijn Katerbarg (Sectigo), Nate Santiago (Microsoft), Nome Huang (TrustAsia), Rebecca Kelly (SSL.com), Thomas Zermeno (SSL.com)

Note Well

Thomas Zermeno read the Note Well.

Approval of prior meeting minutes

No minutes to approve at this time.

Preparation and review of F2F Agenda

• Pre-emptive revocation • Further restricting Hardware Key usage options • PQC - update on draft ballot o Nate requested to be sent information about this as there have been some issues with receiving list emails.

Maximum validity of CS certificates

No further updates at this time.

Moving towards a single profile

No further updates at this time. Bruce adds that we need to start moving on this since Microsoft has been pushing for this deprecation.

There’s a short discussion on if we should have these topics still on the agenda if they’re not moving yet. Corey suggests utilizing GitHub issues to keep track.

CSC-29: Aligning CSCWG BRs with recent SCWG ballots -In discussion period

No further update at this point

Any Other Business

Nate inquired about usage of the mailing lists and making sure all members are added. Nate will reach out to Martijn to make sure everything is in order.

Meeting Adjourned

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).