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Ballot CSC-24 - Timestamping Private Key Protection

Results of Voting

YesNoAbstain
Certificate IssuersDigiCert, Entrust, Globalsign, HARICA, IdenTrust, Sectigo
Certificate Consumers

There were not enough Certificate Consumer votes to pass the ballot. Therefore, the ballot FAILS.

Purpose of the Ballot

This ballot updates the “Baseline Requirements for the Issuance and Management of Publicly‐Trusted Code Signing Certificates“ version 3.7 in order to clarify language regarding Timestamp Authority Private Key Protection. The main goals of this ballot are to:

  1. Require Private Keys associated with newly issued Timestamp Authority Subordinate CA to be stored in offline HSMs
  2. Require newly issued Timestamp Certificates to be issued from a TSA CA with its Private key storedn in offline HSMs
  3. Add a requirement to remove Private Keys associated with Timestamp Certificates after a 18 months
  4. Add a requirement to reject SHA-1 timestamp requests

The following motion has been proposed by Martijn Katerbarg of Sectigo and endorsed by Bruce Morton of Entrust and Ian McMillan of Microsoft.

Motion

This ballot updates the “Baseline Requirements for the Issuance and Management of Publicly‐Trusted Code Signing Certificates” (“Code Signing Baseline Requirements”) based on version 3.7. MODIFY the Code Signing Baseline Requirements as specified in the following redline: https://github.com/cabforum/code-signing/compare/d431d9104094f2b89f35ed4bf1d64b9a844e762b...61d9426e9025d448a13eb56fa75b9651b2136548

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).