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					Security and Privacy in
Ubiquitous Computing
Agenda

   Project issues?
   Ubicomp quick overview
   Privacy and security discussion
   David Nguyen – guest student
   More discussion
   Course surveys
Ubiquitous Computing
(Ubicomp)
   Move beyond desktop machine

   Computing is embedded everywhere in the
    environment

   Known by many things…
    – “off the desktop”, “out of the box”, pervasive,
      invisible, wearable, calm, anytime/anywhere/any
      place, …
Marc Weiser:
The father of ubicomp
   Chief Technologist
    Xerox PARC

   Began Ubiquitous
    Computing Project in
    1988

   1991 Scientific
    American article got
    the ball rolling
Key quotes:

   “The most profound technologies
    are those that disappear”

   “embodied virtuality"
Ubicomp Notions

   Computing capabilities, any time, any
    place

   “Invisible” resources

   Machines sense users’ presence and
    act accordingly
Ubicomp is ...

   Related to:
    – mobile computing
    – wearable computing
    – augmented reality


   In contrast with:
    – virtual reality
Some scenarios – the
office
   Smart meeting room
    – Automatically adjusts room conditions
    – automatically links the devices everyone is using
      to each other and the display so people can
      easily push and pull information
    – Shares needed info with remote participants
    – Automatically creates a meeting record for
      everyone there, stores it properly, etc…
Some scenarios – the
home
   Rooms adjust to people and activities – turn on
    lights, don’t bother family during dinner, etc...
   Reminds or alerts people of activities (soccer game
    at 7), problems (heater malfunctioning), needs (out
    of milk)
   Records family memories – first steps, Christmas…
   Helps communicate and connect with outside family
    members – shared audio / video / photos /
    message boards, etc.
   Locates your keys, favorite sweater, that important
    document
   Monitors your health and alerts to problems
Some scenarios – in the
world
   Easily find your way around and to desired places,
    stores and tourist sites
   Get information relevant to where you are and what
    you are doing
   Access your personal information, check email,
    check on your house, from your mobile device no
    matter where you are
   Let friends and family check on you and know
    what’s going on and where you are
   Meet and socialize with new people and old friends
   Play games in the environment
Technology
   Many scenarios require knowing a subset of
    the following:
    –   who the user is
    –   where the user is located
    –   where various objects are located
    –   the conditions in the environment
    –   Infer what people are doing and want to do
   Using a variety of sensors, networking
    infrastructures, middleware, distributed
    software systems
   And a variety of input and output devices
General questions
   What are security implications for Ubicomp?
    How does this differ from what we’ve talked
    about so far?

   What are privacy implications and how does
    this differ?

   What should we be doing now to prepare
    for Ubicomp apps?
Tradeoffs
   Are we better with or without lots of privacy in this
    new world? (benefits outweigh negatives)

   Examples:
    – Your car monitors how safely you drive, insurance
      companies adjust rates accordingly. What if the end effect
      is lowering accident rates?
    – You have several applications that help persuade you to
      get more exercise and be healthier, monitored by your
      doctor. Your insurance rates are lowered if you are
      successful.
    – Your home can easily record and organize hard-to-get
      moments, like your child’s first steps and first words. But
      your spouse can also use this to replay your exact words
      in that argument last night.
Privacy by design
   Notice: How invisible should protections be?

   Consent: How can explicit consent be achieved?
    What requires it?

   Anonymity: can we achieve anonymity? When
    should we still remain anonymous? From whom?

   Proximity: how can this be used for security and
    privacy?
Big Stick

   What is the Big Stick principle?
   Why is this relevant to Ubicomp?

   In what scenarios is this sufficient?
   In what scenarios is this not sufficient?
Case study: RFID

   Radio Frequency Identification
    – Tags on objects with unique ID, readers
      provide power, work from some distance
      away
   Where is it being used now?
   What are the security issues?
   What are the privacy issues?
   What are potential solutions?

				
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posted:7/5/2011
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