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Ballot CSC-17: Subscriber Private Key Extension

Notice of Review Period

(Mailing list post is available here.)

The IPR review period ended on October 28, 2022 and no exclusion notices were filed.

The final documents, with the effective date being 2022-10-28, are available here.

This Review Notice is sent pursuant to Section 4.1 of the CA/Browser Forum’s Intellectual Property Rights Policy (v1.3). This Review Period is for a Final Maintenance Guideline (30 day Review Period). The complete Draft Guideline subject of this Review Notice is available here.

Ballot for Review: Ballot CSCWG-17

Start of Review Period: September 27, 2022 at 5:00pm Eastern Time

End of Review Period: October 27, 2022 at 5:00pm Eastern Time

Please forward a written notice to exclude Essential Claims to the Forum and Working Group Chair by email to and a copy to the CA/B Forum CSCWG public mailing list cscwg-public@cabforum.org before the end of the Review Period. See current version of CA/Browser Forum Intellectual Property Rights Policy for details.

Results of Voting

YesNoAbstain
Certificate IssuersDigiCert, eMudhra, Entrust, GlobalSign, Sectigo, SecureTrustHARICA
Certificate ConsumersMicrosoft

This ballot has PASSED.

Purpose of the Ballot

This ballot updates the “Baseline Requirements for the Issuance and Management of Publicly‐Trusted Code Signing Certificates“ version 3.1 according to the attached redline which includes the change of the effective date of November 15, 2021, to June 1, 2023, subscriber key protection and verification requirements in the following sections:

  • Section 6.2.7.4.1 Subscriber Private Key protection
  • Section 6.2.7.4.2 Subscriber Private Key verification
  • Section 1.2.2 Relevant Dates

The change to extend the effective date for these sections regarding subscriber private key protection is to provide approximately 1 year of time from the public announcement of the requirement change for all effected parties to implement the changes.

The following motion has been proposed by Ian McMillan of Microsoft and endorsed by Tim Hollebeek of DigiCert and Bruce Morton of Entrust.

Motion

This ballot updates the “Baseline Requirements for the Issuance and Management of Publicly‐Trusted Code Signing Certificates” version 3.1 by replacing the entirely of the content of the document with the attached document.

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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