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Re: [netconf] draft-ietf-netconf-tls-client-server-34 tls-version

Kent Watsen <kent+ietf@watsen.net> Fri, 01 March 2024 00:23 UTC

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From: Kent Watsen <kent+ietf@watsen.net>
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Date: Fri, 01 Mar 2024 00:23:03 +0000
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To: Michal Vasko <mvasko=40cesnet.cz@dmarc.ietf.org>
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Subject: Re: [netconf] draft-ietf-netconf-tls-client-server-34 tls-version
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Hi Michal,

I just found this email of yours.

What is your proposal?  Set min/max or remove the node entirely?

K.


> On Jan 16, 2024, at 4:11 AM, Michal Vasko <mvasko=40cesnet.cz@dmarc.ietf.org> wrote:
> 
> Hi,
> 
> I am wondering about the tls-version user-ordered list in the latest ietf-tls-common YANG module. It allows for quite a fine-tuned configuration of the supported TLS versions but I am not sure there is any added value. Also, OpenSSL does not support these options <https://www.openssl.org/docs/man3.2/man3/SSL_CTX_set_min_proto_version.html> and they advise only setting the minimum (avoid security issues) and maximum (avoid compatibility issues) supported versions, which makes sense to me (but I am no security expert). I suppose it is too late for any changes so I am at least hoping for some comment, thanks.
> 
> Regards,
> Michal
> 
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