Re: [Anima] I-D Action: draft-fries-anima-brski-async-enroll-03.txt

Brian E Carpenter <> Mon, 09 March 2020 03:20 UTC

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To: Anima WG <>,
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From: Brian E Carpenter <>
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Date: Mon, 9 Mar 2020 16:20:12 +1300
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Subject: Re: [Anima] I-D Action: draft-fries-anima-brski-async-enroll-03.txt
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I notice that Figure 2 includes:

>      | GRASP M_FLOOD       |                   |                    |
>      |   periodic broadcast|                   |                    |

but this is not further specified.

If it is intended to be identical to the use of GRASP M_FLOOD for the
objective "AN_Proxy" in draft-ietf-anima-bootstrapping-keyinfra, there
should be an explicit note to that effect. If it's *not* the same "AN_Proxy"
objective, there is some more work to do.

   Brian Carpenter

On 07-Mar-20 02:57, wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>         Title           : Support of asynchronous Enrollment in BRSKI
>         Authors         : Steffen Fries
>                           Hendrik Brockhaus
>                           Eliot Lear
> 	Filename        : draft-fries-anima-brski-async-enroll-03.txt
> 	Pages           : 33
> 	Date            : 2020-03-06
> Abstract:
>    This document discusses enhancements of bootstrapping of a remote
>    secure key infrastructure (BRSKI) to also operate in domains
>    featuring no or only timely limited connectivity to backend services
>    offering enrollment functionality, specifically a Public Key
>    Infrastructure (PKI).  The enhancements proposed to enable this are
>    also applied to further set of use cases in which a pledge may not
>    have a direct connection to the registrar and is served by for
>    instance by a commissioning tool as an agent providing registrar
>    connectivity.  In the context of deploying new devices the design of
>    BRSKI allows for online (synchronous object exchange) and offline
>    interactions (asynchronous object exchange) with a manufacturer's
>    authorization service.  For this it utilizes an authenticated self-
>    contained voucher to transport the domain credentials as a signed
>    object to establish an initial trust between a pledge and the target
>    deployment domain.  The currently supported enrollment protocol for
>    request and distribution of deployment domain specific device
>    certificates provides only limited support for asynchronous PKI
>    interactions.  This memo motivates the enhancement of supporting
>    authenticated self-contained objects for certificate management by
>    using an abstract notation.  The enhancement allows on one hand off-
>    site operation of PKI services outside the deployment domain of the
>    pledge.  This addresses specifically scenarios, in which the final
>    authorization of a certification request of a pledge cannot be made
>    in the deployment domain and is therefore delegated to a operator
>    backend.  On the other hand, this enhancement also facilitates the
>    exchange of certificate management information via a pledge agent.
>    The goal is to enable the usage of existing and potentially new PKI
>    protocols supporting authenticated self-containment for certificate
>    management exchanges.
> The IETF datatracker status page for this draft is:
> There are also htmlized versions available at:
> A diff from the previous version is available at:
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at
> Internet-Drafts are also available by anonymous FTP at:
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