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Browser/OS Information

Root Store OwnerPrimary LinkOther Links
Adobehttp://www.adobe.com/security/approved-trust-list.htm
MozillaOverview of All CA-Related Mozilla DocumentationMozilla’s CA Certificate Policy, How To Apply
MicrosoftMicrosoft Root ProgramRoot Program Updates
Googlehttps://g.co/chrome/root-policy
Opera*
Applehttps://www.apple.com/certificateauthority/ca_program.htmlhttps://support.apple.com/kb/HT5012http://support.apple.com/kb/HT6005
Oraclehttps://www.oracle.com/technetwork/java/javase/javasecarootcertsprogram-1876540.html

* Opera Software had a root store program until fall 2013. Opera 14+ will use the root store provided by the OS and the list of EV-enabled roots maintained by Google. Opera < 12 use Opera’s online root store, hereafter based on NSS by Mozilla. To get certificates accepted by Opera, apply to the above-mentioned root store programs for the relevant OS. (Based on visit to http://www.opera.com/docs/ca/)

Roots in NSS are listed here – https://www.mozilla.org/en-US/about/governance/policies/security-group/certs/included/ and here: https://docs.google.com/spreadsheet/pub?key=0Ah-tHXMAwqU3dGx0cGFObG9QM192NFM4UWNBMlBaekE&single=true&gid=1&output=html

Resources
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).