Towards a theory of data entanglement 1st Edition by James Aspnes, Joan Feigenbaum, Aleksandr Yampolskiy, Zhong Sheng ISBN 9783540301080

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ISBN 13: 9783540301080

Author: James Aspnes, Joan Feigenbaum, Aleksandr Yampolskiy, Zhong Sheng

AutWe give a formal model for systems that store data in entangled form. We propose a new notion of entanglement, called all-or-nothing integrity (AONI) that binds the users’ data in a way that makes it hard to corrupt the data of any one user without corrupting the data of all users. AONI can be a useful defense against negligent or dishonest storage providers who might otherwise be tempted to discard documents belonging to users without much clout. We show that, if all users use a fixed standard recovery algorithm, we can implement AONI using a MAC, but, if some of the users adopt instead a non-standard recovery algorithm provided by the dishonest storage provider, AONI can no longer be achieved. However, even for the latter scenario, we describe a simple entangling mechanism that provides AONI for a restricted class of destructive adversaries.

Towards a theory of data entanglement 1st Table of contents:

1. Introudce 
2. Dagster and Tangler
3. Our model
4. Dependency and all-or-nothing integrity
5. Possibility and impossibility results
6. Conclusion and future work

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