论文信息 - A t-Private k-Database Private Information Retrieval Scheme

A t-Private k-Database Private Information Retrieval Scheme

A private information retrieval scheme enables a user to privately recover an item from a public accessible database. In this paper we present a private information retrieval scheme for k repli-cated databases. The scheme is information-theoretically secure against coalitions of databases of size t k ? 1. It improves the communication complexity of the scheme described in 12] for coalitions of size k 2 t k ? 1:

Alfredo De Santis | Carlo Blundo | Paolo D'Arco

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