March 13, 2018 PSAF Call

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Attendees

.	Member Name		.	Member Name		.	Member Name		.	Member Name
.	John Moehrke Security Co-chair		x	Kathleen Connor Security Co-chair		.	Alexander Mense Security Co-chair		.	Trish Williams Security Co-chair
x	Christopher Shawn] Security Co-chair		x	Suzanne Gonzales-Webb		x	Mike Davis		.	David Staggs
.	Mohammed Jafari		x	Beth Pumo		.	Ioana Singureanu		.	Rob Horn
x	Diana Proud-Madruga		x	Francsico Jauregui		.	Joe Lamy		.	Galen Mulrooney
.	Paul Knapp		.	Grahame Grieve		.	Johnathan Coleman		.	Aaron Seib
.	Ken Salyards		x	Jim Kretz		.	Gary Dickinson		x	Dave Silver
.	Oliver Lawless		.	[1]		.	David Tao		.	Greg Linden

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Agenda

1. (3 min) Roll Call, Agenda Approval
2. (5 min) Review and Approval of the March 6th Minutes
3. (50 min) TF4FA Ballot Work Session - Mike Davis and Chris Shawn

Minutes

• Chris Chaired
• Agenda and Minutes were reviewed. Kathleen moved, Mike seconded. 7-0-0.
• Mike walked through recent changes to Trust Framework for Federated Authorization. We've restructured the TF4FA from one volume with 2 Chapters into two separate volumes. Also working on a third volume for Audit, Provenance, and Blockchain.
• Ballot document will follow PASS ACS format with a business, information, computational and engineering perspectives. In conformance with RM-ODP, business perspective is converted to enterprise viewpoint. Computational view is deemed out of scope.
• Initial Policy Diagram model is a high level view of the 4 key classes from ISO TS 22600-2:2006: Policy class specialized into Basic, Meta, and Composite policy. TF4FA will focus on Basic policy class. Meta and Composite
• Second is the overarching Trust Model with the three types of Authority Domains: Jurisdictional, Organizational, and subject of care. Removed the Venn Diagram from the Federated Domain because the trust contract is no longer considered an integration of policies, but a bridging between two domains where the disclosing domain has the final say on whether the policies in the trust proposal from the requesting domain are acceptable, and executes the contract.
• Third sequence diagram "Establish Trust Contract Model" illustrates the flow of the trust message between the requesting and disclosing domains. A third Trust Framework actor was added, which controls the policy resolution service, external policy management service, and federated trust contract.
• Policy Bridging Boundary View Use Cases illustrates the relationships among Access Control Services and Trust Management Services. This is the use case illustrated by sequence diagram, so is not a workflow. It shows that Domain A has capability to send trust proposal to Domain B.
• Domain B has capability to receive the proposal and to get policies from the Policy Administration Point. B has the capability to send any run time policies and the policies in A's trust proposal to a Policy Resolution Service. Policy Resolution Services has capability to get saved trust policies from an External Policy Management Service.
• Policy Resolution Service has the capability of bridging input policies to (1) execute a trust contract, which is equivalent to Domain's trust proposal by counter signing that proposal; or (2) generate an alternative signed trust proposal, which Domain B's ACS sends to Domain A's ACS.
• Domain A's Policy Resolution Service evaluates against it's PAP and saved policies in External Policy Management Service. If acceptable, Domain A's Policy Resolution Service may sign this proposal to execute a trust contract, which is submitted to Domain B. In the alternative, Domain A's Policy Resolution Service may generate a counter trust proposal, which is sent to Domain B's ACS to continue the process until either party declines to continue or a trust contract is established.