Re: [Ace] est-coaps clarification on /att and /crts

2018-12-12 Thread Michael Richardson
Max Pritikin (pritikin) wrote: > Jim Schaad wrote: > jim> Clarification requested - exactly what element is the Registrar? mcr> It's an EST RFC7030 term, but essentially it's the server that mcr> connects to (or is) the CA. max> The Registrar terminology is from the Anima

Re: [Ace] [Anima] est-coaps clarification on /att and /crts

2018-12-12 Thread Michael Richardson
Hannes Tschofenig wrote: > > We want all our clients to be authenticated by DTLS before they start > > loading up our RF network. > > I'm not suggesting that the DTLS be skipped, I'm suggesting that the > > client certificate presented might be meaningless to the EST server. > I am curious what

Re: [Ace] est-coaps clarification on /att and /crts

2018-12-12 Thread Michael Richardson
Panos Kampanakis (pkampana) wrote: > Gotcha, so you are describing a provisional DTLS connection at the server. I'm thinking about a Registrar that might be serving both provisional connections and ones that are just renewing LDevIDs, and maybe ones that also serve selected factory installed

Re: [Ace] est-coaps clarification on /att and /crts

2018-12-12 Thread Jim Schaad
> -Original Message- > From: Ace On Behalf Of Hannes Tschofenig > Sent: Wednesday, December 12, 2018 8:01 AM > To: Panos Kampanakis (pkampana) ; Michael > Richardson ; ace@ietf.org; an...@ietf.org > Cc: Peter van der Stok ; Max Pritikin (pritikin) > > Subject: Re: [Ace] est-coaps

Re: [Ace] Overwriting Tokens

2018-12-12 Thread Jim Schaad
> -Original Message- > From: Ace On Behalf Of Stefanie Gerdes > Sent: Wednesday, December 12, 2018 2:17 AM > To: ace@ietf.org > Subject: Re: [Ace] Overwriting Tokens > > Hi Ludwig, > > On 12/12/2018 11:05 AM, Ludwig Seitz wrote: > > On 12/12/2018 10:33, Stefanie Gerdes wrote: > >> Hi

Re: [Ace] est-coaps clarification on /att and /crts

2018-12-12 Thread Panos Kampanakis (pkampana)
Hi Hannes, Michael was only asking if allowing any anonymous entity to get the cacerts (trusted root cert list) is worth it. RFC7030 allows for this. Of course an enrollment would still require authentication/authorization. I was making the case that it is not worth to even allow anonymous get

Re: [Ace] est-coaps clarification on /att and /crts

2018-12-12 Thread Hannes Tschofenig
Hi Panos, Hi Michael, > We want all our clients to be authenticated by DTLS before they start loading > up our RF network. > I'm not suggesting that the DTLS be skipped, I'm suggesting that the client > certificate presented might be meaningless to the EST server. I am curious what security

Re: [Ace] Overwriting Tokens

2018-12-12 Thread Stefanie Gerdes
Hi Ludwig, On 12/12/2018 11:05 AM, Ludwig Seitz wrote: > On 12/12/2018 10:33, Stefanie Gerdes wrote: >> Hi again, >> >> I have one additional comment to ace-oauth-17: >> >> Section 5.8.1 recommends that RS stores only one token per key and that >> existing tokens are overwritten by new tokens. I

Re: [Ace] Overwriting Tokens

2018-12-12 Thread Ludwig Seitz
On 12/12/2018 10:33, Stefanie Gerdes wrote: Hi again, I have one additional comment to ace-oauth-17: Section 5.8.1 recommends that RS stores only one token per key and that existing tokens are overwritten by new tokens. I wonder how the RS knows which token is the most recent. I don't think

Re: [Ace] Fwd: New Version Notification for draft-ietf-ace-oauth-authz-17.txt and draft-ietf-ace-oauth-params-01.txt

2018-12-12 Thread Ludwig Seitz
On 12/12/2018 10:27, Stefanie Gerdes wrote: Hi Jim, thank you for your quick response. On 12/11/2018 09:38 PM, Jim Schaad wrote: C may receive keying material for the communication with RS from AS. Unfortunately, the AS does not inform C how long the keying material is valid. C therefore

Re: [Ace] Fwd: New Version Notification for draft-ietf-ace-oauth-authz-17.txt and draft-ietf-ace-oauth-params-01.txt

2018-12-12 Thread Ludwig Seitz
On 11/12/2018 21:38, Jim Schaad wrote: -Original Message- From: Ace On Behalf Of Stefanie Gerdes Sent: Tuesday, December 11, 2018 4:11 AM To: Ludwig Seitz ; ace@ietf.org Subject: Re: [Ace] Fwd: New Version Notification for draft-ietf-ace-oauth-authz- 17.txt and

[Ace] Overwriting Tokens

2018-12-12 Thread Stefanie Gerdes
Hi again, I have one additional comment to ace-oauth-17: Section 5.8.1 recommends that RS stores only one token per key and that existing tokens are overwritten by new tokens. I wonder how the RS knows which token is the most recent. I don't think the expiration time helps in this case because

Re: [Ace] Fwd: New Version Notification for draft-ietf-ace-oauth-authz-17.txt and draft-ietf-ace-oauth-params-01.txt

2018-12-12 Thread Stefanie Gerdes
Hi Jim, thank you for your quick response. On 12/11/2018 09:38 PM, Jim Schaad wrote: >> >> C may receive keying material for the communication with RS from AS. >> Unfortunately, the AS does not inform C how long the keying material is > valid. C >> therefore may use outdated keying material for