EAN: 9783031012099

SYNTHESIS LECTURES ON INFORMATION SECURITY PRIV...

This book deals with Private Information Retrieval (PIR)  a technique allowing a user to
retrieve an element from a server in possession of a database without revealing to the server
which element is retrieved. PIR has been widely applied to protect the privacy of the user in
querying a service provider on the Internet. For example  by PIR  one can query a
location-based service provider about the nearest car park without revealing his location to
the server. The first PIR approach was introduced by Chor  Goldreich  Kushilevitz and Sudan in
1995 in a multi-server setting  where the user retrieves information from multiple database
servers  each of which has a copy of the same database. To ensure user privacy in the
multi-server setting  the servers must be trusted not to collude. In 1997  Kushilevitz and
Ostrovsky constructed the first single-database PIR. Since then  many efficient PIR solutions
have been discovered. Beginning with a thorough survey of single-database PIR techniques  this
text focuses on the latest technologies and applications in the field of PIR. The main
categories are illustrated with recently proposed PIR-based solutions by the authors. Because
of the latest treatment of the topic  this text will be highly beneficial to researchers and
industry professionals in information security and privacy.

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