SPAN Design

Protocol Design

Phase 1: Service Discovery

(Bluetooth built-in? IP-based: Bonjour?)

Phase 2: Authentification and Authorization

All (?) communication can be done using (signed) SAML assertions and protocols

• Client (mobile phone) authenticates to service device (beamer)
• Client asks service device for usage access
• Service device asks client for authorization
• Client asks Access Control Manager for authorization to access service device
• Client gets authorization from Access Control Manager
• Client hands authorization over to service device
• Service device grants access

Used SAML assertions and protocols:

• SAML Authentication query
• SAML Authentication statement
• SAML Authorization decision query
• SAML Authorization decision statement

Phase 3: Using the Service

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