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Unclouded Vision

Explore the risks of centralization in cloud computing and the benefits of a decentralized approach. Learn about the concept of "droplets" as a compromise between the cloud and the mist, and how to implement data encryption and privacy-preserving techniques. Discover platforms like Haggle, Mirage, and Nimbus for harnessing the tradeoffs of centralization and decentralization.

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Unclouded Vision

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  1. Jon Crowcroft&Steven Hand, with Richard Mortier, Anil Madhavapeddy, Malte Schwarzkopf, Theodore Hong Unclouded Vision

  2. From The Cloud The Cloud is great! But it has risks…

  3. Centralisation of PII What if your cloud provider goes broke? You lose all your family photos? Your assets sold to another (unknown) provider? Also, in sufficiently large organizations, There will always be bad people And these people will learn to datamine Digital contextual footprint only makes this worse Phyiscal world meets digital Data is infinitely copyable and lasts a lifetime Leading to identity theft, and worse

  4. To The Mist At the other extreme… http://www.freeimages.co.uk/

  5. A Fully Decentralised Approach Decentralisation obviates cloud risks! No single individual or organization has all the data Maybe even no single entity has a complete part At the cost of dramatically increased complexity Management overheads (P2P/MANETs/DTNs) …and introduction of other risks Availability/resilience Device theft/loss leading to data loss Can we compromise between these two extremes?

  6. Via Extraction We need to pull/push data from the cloud…

  7. And Condensation …before condensing into our (collective) devices

  8. To Droplets A happy compromise?

  9. Decentralisation: Necessary But Not Sufficient Droplets sit between the Cloud and the Mist These are small objects with keys/capabilities There must be audit trails for them Data must be encrypted in both Cloud and Mist We must make this economically sustaining Business models! For example, Use privacy preserving advertising (MPI) Use k-anonymity and threshold security Use differential privacy for market research

  10. Implementation Platforms But how to best use these? To exploit the tradeoffs Haggle, Mirage, Nimbus

  11. In Conclusion User contributed resources are fine Home hub, phone, &c But are better unified with the cloud And vice versa Unification makes sense at the API level Exploit both decentralised and centralised Low latency access to home/pocket High resilience in cloud No loss of privacy if cloud fails, goes bad, &c

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