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Re: [TLS] WG adoption: draft-nir-tls-rfc4492bis

Jeffrey Walton <noloader@gmail.com> Wed, 03 December 2014 16:50 UTC

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Date: Wed, 03 Dec 2014 11:49:52 -0500
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From: Jeffrey Walton <noloader@gmail.com>
To: Peter Gutmann <pgut001@cs.auckland.ac.nz>
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Subject: Re: [TLS] WG adoption: draft-nir-tls-rfc4492bis
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On Wed, Dec 3, 2014 at 2:40 AM, Peter Gutmann <pgut001@cs.auckland.ac.nz> wrote:
> Stephen Checkoway <s@pahtak.org> writes:
>
>>That seems wrong. In practice, a client connects and says I'm willing to
>>communicate using protocol parameters X, Y, and Z. If the server can't
>>accommodate the client, it closes the connection. How is the signature
>>algorithm any different from the cipher suite in this respect?
>
> TLS conflates the algorithms used with TLS with the algorithms used for
> certificates.  As others have pointed out, a server has control over the
> algorithms used for TLS, but no control over what's used in certificates.
> Those are dictated by the CA...

Wouldn't that put certificate parameters (like signing algorithms)
under the purview of PKIX WG?

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