webinos Architecture Overview
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The document provides a technical overview of the architecture for personal zones, focusing on device interaction within local networks, secure authentication, and communication methods. It details the roles of the personal zone hub (PZH) and personal zone proxy (PZP), highlighting their functions such as user authentication, session management, and routing messages. The architecture supports various networks and devices, ensuring secure and efficient integration and communication among connected devices.
webinos Architecture Overview
- 2. Personal Zone Basic concepts already exist: • In a local network, devices often trust each other implicitly (UPnP/DLNA is quite explicitly based on this) • Discovery can be achieved with multicast • Devices that are registered to the same owner often share the same applications / rights / profiles / settings (Kindle, Android, iPad/iPod/iPhone) Architecture Technical Overview 2
- 3. Personal Zone defines Personal Zones: Devices belong to Personal Zones Discovery is 'local' with a Personal Zones Discovery requests originating from outside the Personal Zone are mediated Devices outside the Personal Zones are firewalled The Personal Zone does not need to match the physical network – mobile phones can be included (which are typically not in the same network as home electronics) – the Personal Zone can include non-IP devices (Bluetooth, ZigBee) Devices authenticate themselves to the Personal Zone (and vice versa) Architecture Technical Overview 3
- 4. Webinos Architecture PZH - Personal Zone Hub PZP - Personal Zone Proxy – Resides on Server – Resides locally on the – TLS – Transport Layer – Logical Entity: 1 PZH per device Security user – Present on every webinos Secure/Certified – Each PZH server can host device connection between multiple PZH’s webinos components Peter: PZH John: PZH (Personal Zone Hub) TLS (Personal Zone Hub) Security Policy Security Policy Server / PZH Server / PZH (Logical Entity) (Logical Entity) TLS TLS Peter’s Personal Zone John’s Personal Zone Peter: PZP Peter: PZP Peter: PZP Peter: PZP Peter: PZP John: PZP (Personal Zone Proxy) (Personal Zone Proxy) Security Policy Security Policy Devices Devices 4
- 5. Personal Zone Hub Central to a Personal Zone is the Personal Zone Hub (PZH) The main task of the PZH are: User authentication service Session creation for messages and synchronization Single-sign on point for web services Host for webinos web services Master repository for context data Central repository of policy rules Policy enforcement point for remote communication Architecture Technical Overview 5
- 6. Personal Zone Proxy Every device is associated with a Personal Zone Proxy (PZP) Routes all 'Internet' messages to PZH Routes 'local' messages to other PZPs Can perform PZP to PZP communication for optimisation reasons The PZP acts as a stand-in when devices are temporarily not connected to the Internet Performs functions of PZH when PZH is not accessible PZP is stores various information (context information, event messages) until next sync with PZH is possible PZP is responsible for discovery of local bearers (Bluetooth, ZigBee, NFC) Architecture Technical Overview 6
- 7. Device Integration JSON Binding Messaging Device 1 JSON-RPC Device 2 Packages JSON Binding Architecture Technical Overview 7
- 8. webinos Device/PZP Architecture PZH TLS Browser/ Widget Web Runtime PZP Session Manager Context Manager TLS Authenticatio HTTPS Policy Manager n Certificate Manager Key Storage WebSocket User Data Device Sync Manager Messaging Manager RPC Error recovery Routing Messaging queue webinos API RPC Handler/Manager Discovery Manager APIs APIs APIs APIs APIs Native Discovery Mechanisms Native Device OS 8 Drivers