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K Anonymous Private Query Based On Blind Signature And Oblivious Transfer, Russell Paulet, Golam Kaosar, Xun Yi
K Anonymous Private Query Based On Blind Signature And Oblivious Transfer, Russell Paulet, Golam Kaosar, Xun Yi
International Cyber Resilience conference
In this paper, we consider a scenario where there are a group of clients and a database server, and a client wishes to query the database, but does not want to reveal her or his query to the server. Current solutions for this problem are based on oblivious transfer, which usually requires high communication overhead. To reduce the communication overhead, we propose three k-anonymous private query protocols. Our first protocol is based on blind signature, where the server cannot determine the identity of the querying client from the group. Our second protocol is based on k-anonymous oblivious transfer, where the …