[PDF] Top 20 Single Database, Computationally-Private Information Retrieval. (extended abstract) proved the following results: is interested in).

... a single database and is encrypted, with a key that is held by the user (secretly from the database), then the model becomes the oblivious RAM model [G-87, Ost-90, ...state information (in ... See full document

... a single pro- tocol in the related work – [SS00, ...entire database that makes their practical applicability ...a single digital book or a music ...client’s database copy up to ... See full document

... a private information retrieval interaction that retrieves the record with high communication ...both computationally and communicationally more efficient than the solution by Ghinita et ... See full document

... This thesis will explore the additive homomorphic probabilistic encryption scheme based SPIR protocols with computationally bounded client and server. Encryption schemes explored derive security from the ... See full document

... To highlight the advantage of computational PIR, we have also included the time and cost required for the “trivial” PIR scheme. The trivial scheme is one where the user downloads the entire data set and simply discards ... See full document

... The data has to be stored in an encrypted format using cryptography on biometric for the security reasons. The protocol is blind in the sense that it reveals only the identity, and no additional information about ... See full document

... A Private Information Retrieval (PIR) scheme is a protocol in which a user retrieves a record from a database while hiding which from the database ...as single- database ... See full document

... a database with very heterogeneous file sizes, large files will ruin any performance gains on small ...the database is encoded as a set of elements which are encoded as a set of matrices where is chosen to ... See full document

... for private information retrieval, in the case of a single (honest) server and with information-theoretical privacy, that has O( √ n)- qubit communication complexity, where n denotes ... See full document

... a database con- taining more than 8 billion ...recursive retrieval algorithm from [10], which allows to reduce compu- tational complexity from O(n log n) to ... See full document

... Note (non-collusion between D and E ). We stress that even though the data owner D can be arbitrarily malicious, we assume that D and E do not collude. Indeed, client’s security in the OSPIR-OXT scheme we propose is not ... See full document

... However, we now require a more complex data structure to maintain the ranks of the unused items in the constraint subset since the generated subsets will not be explicitly stored. In particular, we will use online ... See full document

... database can rather inefficiently accomplish this by sending the entire string x to the user. The objective of PIR, then, is to achieve this goal while communicating (significantly) less than n bits. Chor, ... See full document

... of information-theoretic PIR. In order to guarantee information-theoretic PIR, one must have mul- tiple servers in the protocol; Byzantine robustness guar- antees that the protocol still functions correctly ... See full document

... Contributions. In this paper, we present a fast single server PIR protocol with low communication cost. Our protocol belongs to the homomorphic encryption based PIR family [19]. Namely, we utilise the ring ... See full document

... A Private Information Retrieval (PIR) [16] protocol enables to retrieve a specific block from a database without letting the database learn anything about the query and the answer ...A ... See full document

... Only solution: Server sends entire database Total communication cost =... Private Information Retrieval [CKGS98].[r] ... See full document

... numerous Information Retrieval approaches take ...no information of the databases pattern or ...content information put away in social databases, there is increment an interest for RDBMS to ... See full document

... neighbor retrieval, involve solely conditions on objects’ geometric ...multidimensional information, and comes with algorithms which will answer nearest neighbor queries with keywords in real ...neighbor ... See full document

... structure. Information is stored in individual pieces that can be arranged in different ...of information that is stored by ...of information into one data base and eliminating ...the database ... See full document