Re: [stir] Alexey Melnikov's Discuss on draft-ietf-stir-certificates-11: (with DISCUSS and COMMENT)
Dave Crocker <dcrocker@gmail.com> Wed, 02 November 2016 18:52 UTC
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From: Dave Crocker <dcrocker@gmail.com>
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To: Alissa Cooper <alissa@cooperw.in>, Alexey Melnikov <aamelnikov@fastmail.fm>
References: <147800730286.23932.1515952198717955239.idtracker@ietfa.amsl.com> <BE53511C-3C37-4C94-8C01-681EB413C670@sn3rd.com> <1478101725.216255.775166569.1BD2E379@webmail.messagingengine.com> <58F5F6BD-02E0-4DC9-8A69-D918AB5A4B65@vigilsec.com> <26856EBB-3272-4D70-A60E-2714E8B1FB15@cooperw.in>
Organization: Brandenburg InternetWorking
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Date: Wed, 02 Nov 2016 11:52:03 -0700
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Cc: Russ Housley <housley@vigilsec.com>, IETF STIR Mail List <stir@ietf.org>, IESG <iesg@ietf.org>, draft-ietf-stir-certificates@ietf.org, stir-chairs@ietf.org, Robert Sparks <rjsparks@nostrum.com>
Subject: Re: [stir] Alexey Melnikov's Discuss on draft-ietf-stir-certificates-11: (with DISCUSS and COMMENT)
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On 11/2/2016 11:41 AM, Alissa Cooper wrote: > My understanding of the JWT Claim Constraints is that a CA can use them to constrain which claims it expects to receive when asked to validate a cert. Let’s imagine a context in which the base set of claims defined in this spec has been extended to include a “confidence” claim that allows a carrier to differentiate between cases where a number block is fully operated by a customer (e.g., Carrier X assigns a block to Enterprise Y), delegated to a wholesaler, or operating via an SBC. Imagine that the “full,” “delegated,” and “sbc” claims about a “confidence” claim have all been specified. The permitted and excluded constraints could be used to limit claims to one of these categories, e.g., permitted would be set to “full” for the claim “confidence” for numbers in the block used by Enterprise Y. Alissa, This presumes that claims are to be made about 'interesting' properties and issues, whereas the actual task the work is chartered for is far simpler, namely authentication of a call's identifier. More generally, you have described here a broad model for processing that is to be performed by the receiver, based on these (standardized?) claims by the caller (or, rather, the caller's operator.) Do you have examples of such a distributed, multi-administration policy and decision model being used successfully? What has been defined and what you describe is quite a complex system. d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net
- [stir] Alexey Melnikov's Discuss on draft-ietf-st… Alexey Melnikov
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Sean Turner
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Alexey Melnikov
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Russ Housley
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Alissa Cooper
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Dave Crocker
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Alexey Melnikov
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Peterson, Jon
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Alexey Melnikov
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Peterson, Jon
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Alexey Melnikov
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Peterson, Jon
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Alissa Cooper
- Re: [stir] Alexey Melnikov's Discuss on draft-iet… Dave Crocker