Re: [TLS] I-D on TLS authentication with VC

2024-04-08 Thread Andrea Vesco
Hi Stephen, Hi Achim, thanks for your comments. > I think, what is more in question is the comparison > of the new certficate type with the two currently used ones (x509 and > Raw Public Key). Reading your link, my first impression is, that this > is pretty similar to x509 but in json. So talkin

Re: [TLS] I-D on TLS authentication with VC

2024-04-07 Thread Hannes Tschofenig
Hi Andrea thanks for the extra background. How do you plan to deal with the large number of DID methods? Standardization of many of the DID methods has not been finished and they appear to have vastly different security properties, even for the most basic DID methods like did:web and did:key.

Re: [TLS] I-D on TLS authentication with VC

2024-04-05 Thread Achim Kraus
Hi, I'd go further - ISTM an argument for a re-design that just doesn't have the privacy problem. (And maybe come back to the TLS WG after that's done.) The "privacy problem" may disappear, if the DLT is part of that "IoT deployment" and is not considered as an external component. Anyway, it's

Re: [TLS] I-D on TLS authentication with VC

2024-04-05 Thread Stephen Farrell
Hiya, On 05/04/2024 12:54, Achim Kraus wrote: Hi, On that basis, I'd consider this a bad idea that ought not be pursued, and certainly not by the TLS WG. for me this sounds more like an argument for a "recommended (for general use-cases) n". I'd go further - ISTM an argument for a re-des

Re: [TLS] I-D on TLS authentication with VC

2024-04-05 Thread Achim Kraus
Hi, On that basis, I'd consider this a bad idea that ought not be pursued, and certainly not by the TLS WG. for me this sounds more like an argument for a "recommended (for general use-cases) n". Or does the TLS group focus on Web only and I missed that? best regards Achim

Re: [TLS] I-D on TLS authentication with VC

2024-04-05 Thread Achim Kraus
Hi Andrea, > to avoid the only option available today: That wonders me. I think, what is more in question is the comparison of the new certficate type with the two currently used ones (x509 and Raw Public Key). Reading your link, my first impression is, that this is pretty similar to x509 but i

Re: [TLS] I-D on TLS authentication with VC

2024-04-05 Thread Stephen Farrell
Hiya, On 04/04/2024 09:53, Andrea Vesco wrote: I-D: https://datatracker.ietf.org/doc/draft-vesco-vcauthtls/ From figure 2 it looks as if use of this mechanism would have bad privacy properties as the DLT would end up knowing which clients accessed which servers at what times. That's v. similar

Re: [TLS] I-D on TLS authentication with VC

2024-04-05 Thread Andrea Vesco
Hi Hannes, thanks for your question. We are referring to a (well-resourced) IoT system with edge computing nodes. In the IoT/edge segment, the VC can be used for mutual authentication directly in TLS to avoid the only option available today: first establish a TLS channel with X.509 based serve

Re: [TLS] I-D on TLS authentication with VC

2024-04-04 Thread hannes . tschofenig=40gmx . net
Hi Andrea, Thanks for sharing the info. Could you say a bit more about your IoT use case? Ciao Hannes -Original Message- From: TLS On Behalf Of Andrea Vesco Sent: Donnerstag, 4. April 2024 10:53 To: tls@ietf.org Subject: [TLS] I-D on TLS authentication with VC L. Perugini and I have w