Re: [radext] Last Call: <draft-ietf-radext-tls-psk-09.txt> (RADIUS and TLS-PSK) to Best Current Practice

Alan DeKok <aland@deployingradius.com> Mon, 04 March 2024 18:48 UTC

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From: Alan DeKok <aland@deployingradius.com>
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Date: Mon, 04 Mar 2024 13:48:05 -0500
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To: Dan Harkins <dharkins@lounge.org>
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Subject: Re: [radext] Last Call: <draft-ietf-radext-tls-psk-09.txt> (RADIUS and TLS-PSK) to Best Current Practice
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On Mar 4, 2024, at 12:57 PM, Dan Harkins <dharkins@lounge.org> wrote:
>   Is there a reason that RFC 8773 is not being recommended by this draft?

  I wasn't aware of 8773.

  On quick examination, it looks like it has almost all of the issues of certificate-based authentication.  i.e. it still needs a server certificate, which means that the CA has to be configured, as we can't use web CAs.

  For implementors and operators, the utility of TLS-PSK is that it's just a blob.  There's no management once it's configured, and no one needs to manage their own CA infrastructure, or go begging to the web CA infrastructure.

  I can add some text to the document mentioning 8773, but I don't think it changes anything substantial with the use-case this document is addressing.

  Alan DeKok.