Private Cell Retrieval from Data Warehouses
Abstract
Publicly accessible data warehouses are an indispensable resource for data analysis. But they also pose a significant riskto the privacy of the clients, since a data warehouse operator may follow the client’s queries and infer what the client is interested in.data warehousing provides tools for business executives tosystematically organise, understand, and use their data tomake strategic decisions. A large number of organizations havefound that data warehouses are valuable in today’s competitive,fast-evolving world. In the last several years, many firms have
spent millions of dollars in building enterprise-wide data warehouses.
Existing system
Private Information Retrieval (PIR) techniques allow the client to retrieve a cell from a data warehouse without revealing to the operatorwhich cell is retrieved, and therefore protects the privacy of the client’s queries. However, PIR cannot be used to hide OLAP operationsperformed by the client, which may disclose the client’s interest. This paper presents a solution for private cell retrieval from a datawarehouse on the basis of the Paillier cryptosystem. By our solution, the client can privately perform OLAP operations on the datawarehouse and retrieve one (or more) cell without revealing any information about which cell is selected.
Disadvantages
- Providing data security is less.
Proposed system
We propose asolution for private block download on the basis of the Paillier cryptosystem. Our private block download allows the client to downloadan encrypted block from a data warehouse without revealing which block in a cloaking region is downloaded and improves thefeasibility of our private cell retrieval. Our solutions ensure both server’s privacy and client’s privacy. Our experiments have shown thatour solutions are practical.
Advantages
- Providing data security is more.
System Configuration:-
Hardware Configuration:-
Processor-Pentium –IV
Speed- 1.1 Ghz
RAM- 256 MB(min)
Hard Disk- 20 GB
Key Board- Standard Windows Keyboard
Mouse - Two or Three Button Mouse
Monitor- SVGA
Software Configuration:-
Operating System: Windows XP
Programming Language: JAVA
Java Version : JDK 1.6 & above.
Back end :MY SQL
Modules
Paillier-Based Private Cell Retrieval Protocol
Private Block Download Protocol
Private PBD/OLAP/PCR Protocol
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