[OAUTH-WG] Re: Call for adoption - PIKA
Richard Barnes <rlb@ipv.sx> Wed, 18 September 2024 14:31 UTC
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From: Richard Barnes <rlb@ipv.sx>
Date: Wed, 18 Sep 2024 10:31:32 -0400
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To: David Waite <david=40alkaline-solutions.com@dmarc.ietf.org>
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Subject: [OAUTH-WG] Re: Call for adoption - PIKA
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Hi David and Vladimir, We discussed this in the WG session in Vancouver. The aim here is certainly not to just take the certificate on the web server and re-use it. Rather, we are re-using the underlying PKI. As I said in YVR and in my response to Mike just now, we should have separation between web server certificates and PIKA-signing certificates. My view is that a prefix is sufficient ("_pika.example.com"). We could discuss things like EKUs, but those will be harder to deploy. In any case, there are solutions here, so I would propose we adopt the document and then discuss which solution is best. --Richard On Tue, Sep 17, 2024 at 6:29 PM David Waite <david= 40alkaline-solutions.com@dmarc.ietf.org> wrote: > > > On Sep 17, 2024, at 1:58 PM, Vladimir Dzhuvinov <vladimir@connect2id.com> > wrote: > > I frankly don't see how the central premise of PIKA - the reliance on a > TLS web domain certificate - can be made to work in practice. > > > Reasons: Infrastructure in the real world, mixing of concerns, conflict > with CA policies and CAB Forum requirements, NIST etc guidance compliance > issues. > > I agree with Vladimir unfortunately. > > A certificate is a bundle of restrictions, but the two most critical are > on subject name and purpose. This reuses a certificate meant to secure > network traffic with a particular DNS name to one securing arbitrary > application messages from a particular origin. > > This would not only break a lot of organizational security policies (and > potentially conflict with how they deploy their network infrastructure), > but ignores CA policy that is baked into the TLS certificate. > > -DW > _______________________________________________ > OAuth mailing list -- oauth@ietf.org > To unsubscribe send an email to oauth-leave@ietf.org >
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- [OAUTH-WG] Re: Call for adoption - PIKA Giuseppe De Marco
- [OAUTH-WG] Re: Call for adoption - PIKA Falk Andreas
- [OAUTH-WG] Re: Call for adoption - PIKA Joel Kamp
- [OAUTH-WG] Re: Call for adoption - PIKA Ethan Heilman
- [OAUTH-WG] Re: Call for adoption - PIKA Rohan Mahy
- [OAUTH-WG] Re: Call for adoption - PIKA Joseph Salowey
- [OAUTH-WG] Re: Call for adoption - PIKA Pieter Kasselman
- [OAUTH-WG] Re: Call for adoption - PIKA Kristina Yasuda
- [OAUTH-WG] Re: Call for adoption - PIKA Michael Jones
- [OAUTH-WG] Re: Call for adoption - PIKA Richard Barnes
- [OAUTH-WG] Re: Call for adoption - PIKA Michael Jones
- [OAUTH-WG] Re: Call for adoption - PIKA Vladimir Dzhuvinov
- [OAUTH-WG] Re: Call for adoption - PIKA Giuseppe De Marco
- [OAUTH-WG] Re: Call for adoption - PIKA Tom Jones
- [OAUTH-WG] Re: Call for adoption - PIKA David Waite
- [OAUTH-WG] Re: Call for adoption - PIKA Watson Ladd
- [OAUTH-WG] Re: Call for adoption - PIKA Tom Jones
- [OAUTH-WG] Re: Call for adoption - PIKA Richard Barnes
- [OAUTH-WG] Re: Call for adoption - PIKA Richard Barnes
- [OAUTH-WG] Re: Call for adoption - PIKA Michael Jones
- [OAUTH-WG] Re: Call for adoption - PIKA Tom Jones
- [OAUTH-WG] Re: Call for adoption - PIKA Richard Barnes