private information retrieval scheme
Private Stateful Information Retrieval
... a Private Stateful Information Retrieval (PSIR), that extends the concept of a PIR without losing any of the three desirable properties of PIR described ...store information between ...execute ...
31
Towards practical private information retrieval from homomorphic encryption
... . Private information retrieval (PIR) allows a client to retrieve data from a remote database while hiding the client’s access ...proposed scheme has reduced multiplicative depth of the ...
11
PIRMAP: Efficient Private Information Retrieval for MapReduce
... this scheme is O(n · l · M (k) + (n − 1) · l · A(k), where M (k) is the cost of performing one scalar multiplication in the additively homomorphic encryption system, and A(k) is the cost of one ...
15
On Basing Private Information Retrieval on NP-Hardness
... The possibility of basing the security of cryptographic objects on the (minimal) assumption that NP ⊈ BPP is at the very heart of complexity-theoretic cryptography. Most known re- sults along these lines are negative, ...
15
Private Information Retrieval in an Anonymous Peer-to-Peer Environment
... Gaborit scheme, the database is encoded as a set of elements which are encoded as a set of matrices where is chosen to be large enough to encode the largest database element and is a security parameter (suggested ...
48
Querying Databases Privately A New Approach To Private Information Retrieval Asanov D (2004) pdf
... no information to be revealed about the content of the ...no information would be available for the server to use in deciding how to distribute ...some information about queries to be revealed for ...
128
Symmetric private information retrieval via additive homomorphic probabilistic encryption
... encryption scheme in which the length of the plaintext is dependent upon the length of N , involving larger plaintexts is possible but not necessar- ily as plausible since a larger key would have to be ...
184
A Survey on Information Retrieval Scheme for differential Query Services in Cloud Environment
... Ostrovsky scheme has a high computational cost, as it requires the cloud to process the query on everyfile in a ...make private searching applicable in a cloud environment, the previous work [7] designed a ...
6
A fast single server private information retrieval protocol with low communication cost
... server Private Information Retrieval (PIR) protocols are far from ...compression scheme, which we call folding/unfolding. This compres- sion scheme enables us to lower the communication ...
19
ANALYSIS ON EFFICIENT INFORMATION RETRIEVAL FOR RANKED QUERY IN A COST EFFECTIVE OF CLOUD Nagarapu Madhuri 1, Gude Suchitra2
... make private searching applicable in a cloud environment, our previous work designed a cooperate private searching protocol (COPS), where a proxy server, called the aggregation and distribution layer (ADL), ...
6
An Ω(n1/3) Lower Bound for Bilinear Group Based Private Information Retrieval
... two-server private information retrieval (PIR) scheme allows a user U to retrieve the i-th bit of an n-bit string x replicated on two servers while each server indi- vidually learns no ...
18
Ranked Query Assistance in Untrusted Cloud Helper without Reveal Sensitive Data
... system private keyword-predicated file retrieval scheme that was pristinely proposed by ...Their scheme sanctions a utilizer to retrieve files of interest from an untrusted server without ...
5
Optimally Robust Private Information Retrieval
... multi-server information-theoretic private information retrieval which achieves the theoret- ical limit for Byzantine ...our scheme and it is extremely fast in prac- tice: up to ...
16
XPIR: Private Information Retrieval for Everyone
... Figure 2: PIR pre-processing and processing time and throughput on a MSI GT60 laptop with a Core i7- 3630QM 2.67GHz, for different crypto parameters. Input sizes are the maximum plaintext sizes given in Figure 1. ...
24
Outsourced Symmetric Private Information Retrieval
... 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 ...
34
Research on information retrieval model based on ontology
... The data set contains 1000 scientific papers and pa- pers from the IEEE digital library, which are used to ex- tract the core concepts in the domain ontology. Then the final conceptualization system is established. The ...
8
A multi-level authentication scheme for controlling access to private and sensitive information of an enterprise
... Authorization Scheme (DAAS), where an identity-based signature (IBS) was used to achieve distributed verifications of the identities of publishers and ...authentication scheme was proposed in ...
7
Information Storage And Retrieval Systems Theory And Impl 2e Kowalski GJ (2002) pdf
... item. Retrieval ware uses a statistical algorithm but it does not include any corpora ...frequency information. It creates this information as it processes items, storing and modifying it for use as ...
333
Image Retrieval Using Texture and its Spatial Information
... In computer vision and pattern recognition, texture features acquires significant role in describing the content of images. Texture feature presents in many real world images like beach, mountain, clouds, leafs, desert, ...
10
Certain Investigations on Effective Query Service Mechanism in Clouds
... privacy information from randomized data are ...perturbation private information retrieval and Dynamic authenticated index structures for outsourced databases are ...derive private ...
5