IEEE Projects | ieee projects 2012 | IEEE Projects 2011 | IEEE Projects 2010 | IEEE Project | Final year Projects | Ns2 Projectsieee projects, ieee projects 2011,ieee projects 2012, NS2 Projects,IEEE Academic Projects, IEEE 2011 Projects, IEEE, IEEE Projects Chennai,IEEE Software Projects, Latest IEEE Projects,IEEE Student Projects, IEEE Final year Student Projects,Final Year Projects, ENGINEERING PROJECTS, MCA projects, BE projects, Embedded Projects, JAVA projects, J2EE projects, .NET projects, Students projects, MATLAB Projects
pCloud: A Distributed System for Practical PIR
Dependable and Secure Computing –
IEEE 2012 – January- February 2012
Technology Used: Java/J2EE
Computational Private Information Retrieval (cPIR) protocols allow a client to retrieve one bit from a database, without the server inferring any information about the queried bit. These protocols are too costly in practice because they invoke complex arithmetic operations for every bit of the database. In this paper, we present pCloud, a distributed system that constitutes the first attempt toward practical cPIR. Our approach assumes a disk-based architecture that retrieves one page with a single query. Using a striping technique, we distribute the database to a number of cooperative peers, and leverage their computational resources to process cPIR queries in parallel. We implemented pCloud on the PlanetLab network, and experimented extensively with several system parameters. Our results indicate that pCloud reduces considerably the query response time compared to the traditional client/server model, and has a very low communication overhead. Additionally, it scales well with an increasing number of peers, achieving a linear speedup.
