[Servercert-wg] Voting Period Begins - Ballot SC-59 v2 "Weak Key Guidance"

陳立群 realsky at cht.com.tw
Wed Jul 12 12:42:25 UTC 2023

Chunghwa Telecom votes NO on SC-59-V2.




Li-Chun Chen

Chunghwa Telecom Co., Ltd.

From: Servercert-wg <servercert-wg-bounces at cabforum.org> On Behalf Of Mads Egil Henriksveen via Servercert-wg
Sent: Monday, July 10, 2023 7:58 PM
To: Tom Zermeno <tom at ssl.com>; CA/B Forum Server Certificate WG Public Discussion List <servercert-wg at cabforum.org>
Subject: [外部郵件]Re: [Servercert-wg] Voting Period Begins - Ballot SC-59 v2 "Weak Key Guidance"


Buypass votes NO on ballot SC-59 v2.

Buypass is in favor of CAs checking for vulnerable keys in general. However, we are concerned that the current ballot text introduces additional requirements and required controls for Debian weak keys which may be removed later. We would prefer that the ongoing discussions related to weak keys could be completed and considered before this ballot is finalized.






From: Servercert-wg <servercert-wg-bounces at cabforum.org <mailto:servercert-wg-bounces at cabforum.org> > On Behalf Of Tom Zermeno via Servercert-wg
Sent: Thursday, July 6, 2023 6:18 PM
To: Infrastructure Bot via Servercert-wg <servercert-wg at cabforum.org <mailto:servercert-wg at cabforum.org> >
Subject: [Servercert-wg] Voting Period Begins - Ballot SC-59 v2 "Weak Key Guidance"


Purpose of the Ballot SC-59

This ballot proposes updates to the Baseline Requirements for the Issuance and Management of Publicly-Trusted Certificates related to the identification and revocation of certificates with private keys that were generated in a manner that may make them susceptible to easy decryption. It specifically deals with Debian weak keys, ROCA, and Close Primes Vulnerability. 


·         Thank you to the participants who voiced opinions and concerns about the previous version of the ballot.  While there were many concerns about the inclusion of the Debian weak keys checks, we have decided to leave the checks in the ballot.  Our reasoning is that we wanted to strengthen the guidance statements, to help CAs ensure compliant certificate generation.  Future reviews of the BRs may cull the requirements, as is required by the needs of the community. 

·         We believe that the requested date of November 15, 2023, will allow enough time for Certificate Authorities to enact any changes to their systems to ensure that they perform the weak key checks on all CSRs submitted for TLS certificates. 

·         The changes introduced in SC-59 do not conflict with any of the recent ballots. As observed with other ballots in the past, minor administrative updates must be made to the proposed ballot text before publication such that the appropriate Version # and Change History are accurately represented (e.g., to indicate these changes will be represented in Version 2.0.1).  

The following motion has been proposed by Thomas Zermeno of SSL.com and has been endorsed by Martijn Katerbarg of Sectigo and Ben Wilson of Mozilla. 

- Motion Begins -  

This ballot modifies the “Baseline Requirements for the Issuance and Management of Publicly-Trusted Certificates” (“Baseline Requirements”), based on Version 2.0.0. 

MODIFY the Baseline Requirements as specified in the following Redline: https://github.com/cabforum/servercert/compare/a0360b61e73476959220dc328e3b68d0224fa0b3...SSLcom:servercert:958e6ccac857b826fead6e4bd06d58f4fdd7fa7a  

- Motion Ends - 

The procedure for approval of this ballot is as follows:

Discussion (7 days) 

• Start time: 2023-06-26 22:00:00 UTC 

• End time: 2023-07-03 21:59:59 UTC 

Vote for approval (7 days) 

  •  Start Time:  2023-07-06 17:00:00

  •  End Time:   2023-07-13 16:59:59 




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