Re: [netconf] Reuse of SZTP-CSR YANG definition in BRSKI-AE

"Brockhaus, Hendrik" <hendrik.brockhaus@siemens.com> Tue, 20 July 2021 12:20 UTC

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From: "Brockhaus, Hendrik" <hendrik.brockhaus@siemens.com>
To: "draft-ietf-netconf-sztp-csr@ietf.org" <draft-ietf-netconf-sztp-csr@ietf.org>
CC: "netconf@ietf.org" <netconf@ietf.org>, Michael Richardson <mcr@sandelman.ca>, "steffen.fries@siemens.com" <steffen.fries@siemens.com>, "Werner, Thomas" <thomas-werner@siemens.com>
Thread-Topic: Re: [netconf] Reuse of SZTP-CSR YANG definition in BRSKI-AE
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Date: Tue, 20 Jul 2021 12:19:59 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netconf/L8gEEkFTn6B9pcSMe1anM5D6-jY>
Subject: Re: [netconf] Reuse of SZTP-CSR YANG definition in BRSKI-AE
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Kent, Russ, Sean

I was not involved in the discussion of reusing the Yang Module in BRSKI-AE some weeks back. But we would like to use the momentum that draft-ietf-netconf-sztp-csr is currently opened for editing for CMP specific corrections in the YANG module ietf-sztp-csr for brining up this discussion again.

In BRSKI-AE (https://datatracker.ietf.org/doc/draft-ietf-anima-brski-async-enroll/) we address a use case in which we use a signature wrapped CSR, for which we would like to re-use the existing YANG definition in SZTP (see also the discussion in the thread https://mailarchive.ietf.org/arch/msg/netconf/AFFqdeYJll9IndkQfT6scXWct6U/)
As BRSKI-AE  currently only utilize the CSR type part without the SZTP bootstrapping server information, it would be advantageous for BRSKI-AE (for general applicability) to extract the CSR types into a separate YANG module, which could be imported by the YANG module ietf-sztp-csr and can be re-used also by BRSKI-AE. This would avoid a potential protocol specific definition of CSR types for SZTP and BRSKI-AE with most likely the same content. In addition, while BRSKI-AE currently only utilizes P10, it would open the possibility to also utilize other certification request types in the future.
We would like to ask if you see an opportunity for this change (separate ietf-csr-types YANG module as part of draft-ietf-sztp-csr) at this point in time.

Hendrik

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