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Re: [Ntp] Of Roughtime's algorithm agility, and host attestation

"Salz, Rich" <rsalz@akamai.com> Sat, 27 July 2019 01:20 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: Thomas Peterson <nosretep.samoht@gmail.com>, "ntp@ietf.org" <ntp@ietf.org>
Thread-Topic: [Ntp] Of Roughtime's algorithm agility, and host attestation
Thread-Index: AQHVRBdDjur74jY8R0mBRvzPetCr9KbdqrCA
Date: Sat, 27 Jul 2019 01:20:11 +0000
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Subject: Re: [Ntp] Of Roughtime's algorithm agility, and host attestation
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>    To answer the first point, one suggestion by Erik Klein[0] is to create 
    a new DNS RR type that includes the long term certificate of the 
    Roughtime server.

Look at https://tools.ietf.org/html/draft-nygren-httpbis-httpssvc-00 which attempts to provide various useful information. One possibility is a "cert digest" field.  Certs are generally too big for DNS, only keys appear.

For crypto types, re-use an existing registry and profile it to make things MUST NOT.  There are various options, including TLS, JOSE, etc.

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