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Re: [ntpwg] New Version Notification for draft-ietf-ntp-network-time-security-12.txt and draft-ietf-ntp-using-nts-for-ntp-03.txt

Danny Mayer <mayer@ntp.org> Wed, 23 December 2015 23:10 UTC

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To: Harlan Stenn <stenn@ntp.org>
From: Danny Mayer <mayer@ntp.org>
Organization: NTP
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Date: Wed, 23 Dec 2015 16:59:54 -0500
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Subject: Re: [ntpwg] New Version Notification for draft-ietf-ntp-network-time-security-12.txt and draft-ietf-ntp-using-nts-for-ntp-03.txt
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On 12/23/2015 4:23 PM, Harlan Stenn wrote:
> Danny Mayer writes:
>> On 12/23/2015 10:28 AM, dieter.sibold@ptb.de wrote:
>>> So, the intention of the MAC extension field is to replace the current
>>> MAC field? And it will support the current pre-shared key authentication
>>> scheme?
>>
>> Yes. It will be close to the existing MAC but implemented as an
>> extension field. I'm hoping to get rid of the existing MAC in favor of
>> it as an extension field to give us the needed flexibility.
>>
>> Danny
> 
> I'm curious to see how you will deal with backward compatibility.
> 
> H
> 

Older systems only know about Autokey at most and that will be using the
existing MAC implementation.

Danny

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