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An Efficient Hardware-based PIR Scheme
Lan Tian * #,Qin Zhiguang
School of Computer Science and Engineering, UESTC
*Correspondence author
#Submitted by
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Funding: 教育部博士点基金（No.20050614018）
Opened online: 9 January 2009
Accepted by: none
Citation: Lan Tian,Qin Zhiguang.An Efficient Hardware-based PIR Scheme[OL]. [ 9 January 2009] http://en.paper.edu.cn/en_releasepaper/content/27584
 
 
An hwPIR (hardware-based Private Information Retrieval) protocol allows a user to retrieve one of N records from a database without revealing the identity of the record to the database server using a server-side trusted hardware. In this paper, we present a new hwPIR protocol which achieves computation complexity while keeping the same communication overhead. Two N-length memory buffers are used to avoid the most time-consuming process, periodic reshuffle. Although this scheme is not fully secured, we believe it’s secure enough in practice and easy to implement.
Keywords:Private information retrieval; Trusted hardware; Secure coprocessor.
 
 
 

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