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GEOPRIV Location Retrieval: Types and Mechanisms for Effective Location Data Access

Discussing 4 types of location retrieval mechanisms with examples and considerations for target movement and storage time. Includes URL representations and security aspects for efficient data access. GEOPIV Yet another mode Graphical version target time location target "now" target target "then" GEOPIV URLs. HTTP service GEOPRIV.

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GEOPRIV Location Retrieval: Types and Mechanisms for Effective Location Data Access

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  1. LbyR discussion Henning Schulzrinne Hannes Tschofenig Richard Barnes (and others I forgot) GEOPRIV

  2. Location retrieval • 4 different types of location retrieval: • location only • URL representing “Salon 1, Westin, 1601 Bayshore Drive, Vancouver” • e.g., http://ietf.org/ietf70/salon1 • no identity • target + location + time (“snapshot”) • request: “where was alice@example.com at 10:56 PST” • ask twice, get same answer even if target moved • may have limited storage time • target + “now” • request: “current location for alice@example.com” • ask twice, get two answers if target moved • may have limited time (observation period) • generic • “location service for Columbia U.” • ask any number of times • possibly infinite lifetime of URL GEOPRIV

  3. Yet another mode • Log retrieval • “where has the target been between 1800 and 1900” • target and LIS may keep limited history, so may fail GEOPRIV

  4. Graphical version target time location target “now” target target “then” GEOPRIV

  5. URLs • URL that provides value to anybody • e.g., crypto-randomized URL • security = security of conveying URL • URL that provides location to specific IP address • URL that requires auth^2 • HTTP • e.g., service GEOPRIV

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