[cabfpub] [cabfquest] FW: SHA1 Deprecation Ballot

[Rob Stradling]

Ben, I'm puzzled about what you meant by "For now, I believe most CAs 
are already in compliance."

How can a CA be non-compliant this side of July 2015?

On 20/02/14 15:41, Ben Wilson wrote:
> The problem is that we need more certainty for planning purposes and to
> be able to make meaningful progress in order to accomplish what
> Microsoft is recommending for us to do.  This is merely ratifying what
> we all know is the de facto policy due to Microsoft's position, which
> they have indicated will not change.  We can tweak this plan later in
> July 2015 if  Microsoft tweaks its policy, and between now and then
> we'll have the opportunity to collect data.  For now, I believe most CAs
> are already in compliance.
> ------------------------------------------------------------------------
> From: Bruce Morton <mailto:bruce.morton at entrust.com>
> Sent: ‎2/‎20/‎2014 6:38 AM
> To: questions at cabforum.org <mailto:questions at cabforum.org>
> Subject: [cabfquest] FW: [cabfpub] SHA1 Deprecation Ballot
>
> I’m concerned with this ballot.
>
> Microsoft has stated a policy, but have also stated that they may change
> the policy in 2015. Nevertheless, all CAs must comply with Microsoft’s
> policy as it evolves.
>
> If a change is made to the Baseline Requirements, then the CAB Forum
> should consider that they will change the policy if Microsoft does.
>
> If the CAB Forum wants to manage this policy themselves, then there
> should be work done to get data to justify the policy. When should we
> protect against collision? When should we protect against Preimage and
> Second-Preimage? When will SHA2 be sufficiently supported? If the CAB
> Forum is not doing work to get this data, then how do you justify the
> policy?
>
> If Microsoft is doing the work to create the plan for SHA1 deprecation,
> then I think that the CAs should just follow their lead. When the plan
> is finalized, then it should be incorporated into the BRs.
>
> Bruce.
>
> *From:*public-bounces at cabforum.org [mailto:public-bounces at cabforum.org]
> *On Behalf Of *Ben Wilson
> *Sent:* Wednesday, February 19, 2014 3:02 PM
> *To:* public at cabforum.org
> *Subject:* [cabfpub] SHA1 Deprecation Ballot
>
> I’m not sure whether I’ve captured it all, but here is a rough draft of
> a possible ballot for the Baseline Requirements.
>
> Effective immediately CAs SHOULD begin migrating away from using the
> SHA-1 hashing algorithm to sign SSL/TLS and code signing certificates.
>
> Beginning January 1, 2016, CAs SHALL NOT use the SHA-1 hashing algorithm
> to sign SSL/TLS or code signing certificates.
>
> Please provide your comments, edits, etc.,
>
> Thanks,
>
> Ben
>
>
>
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-- 
Rob Stradling
Senior Research & Development Scientist
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