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Enhanced View Sharing Mechanism for Secured Privacy and Flexible Policies

This proposal introduces a mechanism for sharing views in response to specified requirements, ensuring privacy and flexible authorization policies. It enables controlled contact levels and policy changes. Technical challenges include handling multiple RLSs with the same target presentity and assessing necessary flexibility modes.

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Enhanced View Sharing Mechanism for Secured Privacy and Flexible Policies

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  1. View Sharingdraft-ietf-simple-view-sharing Jonathan Rosenberg Cisco

  2. Problem Statement • Proposes a mechanism in response to draft-ietf-sipping-presence-scaling-requirements • Meets all of the requirements, including preserving privacy and flexible authorization and composition policies

  3. Basic Mechanism SUB buddylist SUB joe@b.com From: alice@a.com NOTIFY With PIDF ACL: bob SUB buddylist NOTIFY SUB joe@b.com From: carol@a.com SUB buddylist b.com alice bob carol a.Com RLS

  4. Properties • Doesn’t reveal anything to a.com they can’t get otherwise • Allows presentity domain policy controls over how much it wants to be contacted with subscriptions • Does not reveal policies to originating domain, only grouping of users that share the same view • Allows policies to change at any time – updated NOTIFY delivers new ACL

  5. Open Technical Issues • Dealing with multiple RLSs with same target presentity • Do we need all modes of flexibility that are in here?

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