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Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS

"Salz, Rich" <rsalz@akamai.com> Mon, 30 August 2021 19:08 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: Joseph Salowey <joe@salowey.net>
CC: "tls@ietf.org" <tls@ietf.org>
Thread-Topic: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS
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Date: Mon, 30 Aug 2021 19:08:22 +0000
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Subject: Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS
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Ack, of course.

My views are the same tho.

From: Joseph Salowey <joe@salowey.net>
Date: Monday, August 30, 2021 at 2:32 PM
To: Rich Salz <rsalz@akamai.com>
Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] Adoption call for Deprecating FFDH(E) Ciphersuites in TLS



On Mon, Aug 30, 2021 at 10:47 AM Salz, Rich <rsalz@akamai.com<mailto:rsalz@akamai.com>> wrote:
By “obsolete keyex draft” you mean expired, right?

[Joe] I mean this draft - draft-aviram-tls-deprecate-obsolete-kex-00 (the subject of the other adoption call).  There were several comments that we should merge the two drafts.  Since draft-bartle-tls-deprecate-ffdh-00 and the expired draft-bartle-tls-deprecate-ffdhe-00 are similar I would expect we would merge content from draft-bartle-tls-deprecate-ffdh-00 into draft-aviram-tls-deprecate-obsolete-kex-00 with perhaps some addition text on certificates with static keys.

I am in favor of MUST NOT have a certificate with DH keys.  So yes to 1. I think #2 is unenforceable/undetectable, but would be happy to be convinced otherwise.  So I’m unsure about #2.

But yes, let’s adopt and merge in the expired keyex draft and then argue over it.

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