November 2013
Intermediate to advanced
650 pages
21h 33m
English
Content preview from Emerging Trends in ICT Security
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Chapter 15
Algebraic Approaches to a Network-Type Private Information Retrieval
Vladimir B. Balakirsky† and Anahit R. Ghazaryan, State University of Aerospace Instrumentation, St-Petersburg, Russia
We propose a network-type scheme of private information retrieval, presented as a modification of the conventional setup, where the user is replaced with two users, the user-sender and the user-receiver. As a result of communication, the user-receiver becomes informed about the bit located at a certain position of the database, owned by the servers. Each server receives a query from the user-sender that contains information about the position in a hidden form and the server cannot disclose this position. On the basis of the query and the database, ...
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