Many-to-one private set intersection
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Computer Science—the theory, representation, processing, communication and use of information—is fundamentally transforming every aspect of human endeavor. The Department of Computer Science at Iowa State University advances computational and information sciences through; 1. educational and research programs within and beyond the university; 2. active engagement to help define national and international research, and 3. educational agendas, and sustained commitment to graduating leaders for academia, industry and government.
History
The Computer Science Department was officially established in 1969, with Robert Stewart serving as the founding Department Chair. Faculty were composed of joint appointments with Mathematics, Statistics, and Electrical Engineering. In 1969, the building which now houses the Computer Science department, then simply called the Computer Science building, was completed. Later it was named Atanasoff Hall. Throughout the 1980s to present, the department expanded and developed its teaching and research agendas to cover many areas of computing.
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1969-present
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- College of Liberal Arts and Sciences (parent college)
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Abstract
In this thesis, we first define a new security problem, named mPSI (many-to-one private set interaction), which can find applications in many scenarios where the host of a big database may be queried by a large number of clients who have small-size queries and want to prevent both the intentions and results of their queries from being exposed to others. We also propose a new scheme to solve the mPSI problem. The scheme extends the state-of-the-art oblivious transfer-based one-to-one PSI schemes, but also embeds the innovative ideas of (1) leveraging the collaborations between clients to achieve high computational and communication efficiency, and (2) relying on server-aided secret encryption to hide each client's private information from being exposed to either the server or any other client. Extensive theoretical analysis and experiments have been conducted to evaluate the proposed scheme and compare the scheme with the state-of-the-art, and the results verify the security and efficiency of our proposed scheme.