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Re: [TLS] WGLC for draft-ietf-tls-tls13-cert-with-extern-psk

Michael StJohns <msj@nthpermutation.com> Mon, 20 May 2019 20:58 UTC

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From: Michael StJohns <msj@nthpermutation.com>
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Subject: Re: [TLS] WGLC for draft-ietf-tls-tls13-cert-with-extern-psk
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On 5/20/2019 3:41 PM, Blumenthal, Uri - 0553 - MITLL wrote:
>
> I reviewed this draft (“browsed through” would be a more honest 
> statement). I didn’t spot an obvious problem with it.
>
> One question that I have after reading it: I understand why one wants 
> to implement this extension, but I don’t see how the two endpoints 
> would arrive at that external PSK.
>
Sadly - we're back to the 1980's in terms of key management. The obvious 
answers are a) they meet to exchange keys, b) they're given a key 
through a KDC, c) they get them in the mail. (and I'm really not kidding 
about (c))

Mike


> *From: *TLS <tls-bounces@ietf.org> on behalf of Russ Housley 
> <housley@vigilsec.com>
> *Date: *Monday, May 20, 2019 at 3:21 PM
> *To: *Joe Salowey <joe@salowey.net>
> *Cc: *IETF TLS <tls@ietf.org>
> *Subject: *Re: [TLS] WGLC for draft-ietf-tls-tls13-cert-with-extern-psk
>
> TLS 1.3 Extension for Certificate-based Authentication with an 
> External PSK ensures the US Government has a quantum-resistant option 
> for TLS in the interim years until post-quantum algorithms emerge from 
> the NIST process. For this reason, there is an intent to specify this 
> extension in future procurements.
>
> Russ
>
>
>
>     On May 15, 2019, at 9:20 AM, Joseph Salowey <joe@salowey.net
>     <mailto:joe@salowey.net>> wrote:
>
>     The last call has come and gone without any comment.  Please
>     indicate if you have reviewed the draft even if you do not have
>     issues to raise so the chairs can see who has reviewed it.  Also
>     indicate if you have any plans to implement the draft.
>
>     On Tue, Apr 9, 2019 at 8:51 PM Joseph Salowey <joe@salowey.net
>     <mailto:joe@salowey.net>> wrote:
>
>         This is the working group last call for the "TLS 1.3 Extension
>         for Certificate-based Authentication with an External
>         Pre-Shared Key” draft available at
>         https://datatracker.ietf.org/doc/draft-ietf-tls-tls13-cert-with-extern-psk/.
>         Please review the document and send your comments to the list
>         by 2359 UTC on 23 April 2019.
>
>         Thanks,
>         Chris, Joe, and Sean
>
>
>
>
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