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Re: [TLS] Uplifting 5289

Stephen Farrell <stephen.farrell@cs.tcd.ie> Fri, 17 March 2017 13:18 UTC

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To: Yoav Nir <ynir.ietf@gmail.com>, Eric Rescorla <ekr@rtfm.com>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Subject: Re: [TLS] Uplifting 5289
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FWIW, the IETF LC for this has ended now and I plan
to send the approval message for the uplift to the
secretariat later today.

Thanks,
S.

On 16/03/17 20:33, Yoav Nir wrote:
> Oh, sorry. I missed that it was Informational.
> 
> In that case there’s just the issue that it has ECDH ciphersuites at a time where 4492bis is deprecating all the other ones.  But some of the ciphersuites in there are in wide enough use that it shouldn’t remain Informational.
> 
> Yes, it should be uplifted then.
> 
> Yoav
> 
>> On 16 Mar 2017, at 21:23, Eric Rescorla <ekr@rtfm.com> wrote:
>>
>> This is actually uplift to PS.
>>
>> On Thu, Mar 16, 2017 at 12:16 PM, Yoav Nir <ynir.ietf@gmail.com <mailto:ynir.ietf@gmail.com>> wrote:
>>
>>> On 16 Mar 2017, at 21:01, Kathleen.Moriarty.ietf@gmail.com <mailto:Kathleen.Moriarty.ietf@gmail.com> wrote:
>>>
>>>
>>>
>>> Please excuse typos, sent from handheld device
>>>
>>>> On Mar 16, 2017, at 11:37 AM, Yoav Nir <ynir.ietf@gmail.com <mailto:ynir.ietf@gmail.com>> wrote:
>>>>
>>>>
>>>>> On 16 Mar 2017, at 17:17, Eric Rescorla <ekr@rtfm.com <mailto:ekr@rtfm.com>> wrote:
>>>>>
>>>>> Hi folks
>>>>>
>>>>> I note that we are proposing to uplift RFC 5289 to PS, despite the fact that it
>>>>> standardizes some CBC cipher suites, which the WG is looking to move away
>>>>> from. I recognize that these are the only cipher suites you can use in TLS 1.0
>>>>> and 1.1, but we also want people to move away from them.
>>>>>
>>>>> This problem is probably solvable by marking the registry as Not Recommended, but I wondered if anyone had other thoughts on this topic?
>>>>>
>>>>
>>>> 5289 applies to TLS 1.0, 1.1, and 1.2.  It seems strange to uplift a bunch of ciphersuites for 1.2 just as we’re publishing TLS 1.3 which obsoletes 5246.
>>>
>>> TLS 1.2 will be in use for a while unless major problems are found, so it's worthwhile IMO.
>>
>> I understand that. I’m wondering what message we are trying to convey by publishing or uplifting a full standard for a now-obsolete protocol.
>>
>> The Internet works just fine on proposed standards (or even Internet Drafts)
>>
>> Yoav
>>
>>
> 
> 
> 
> 
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