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1. Privacy Preserving Schemes for SQL Operations
Abhinav Parate, Bhupendra Singh
Indian Institute of Technology, Kanpur
Abstract. With the global emergence of concerns for the privacy of huge amount
of information being collected in the databases, the research work in the field of
protecting databases from exposure or any other attack has increased. Encryption
techniques- both conventional and modern have proved out to be good technol-
ogy in protecting the sensitive data. However, once encrypted, data can no longer
be queried for operations like Greater Than, Less Than, Substring matching and
others. The only operation that could be done on encrypted data is to find ex-
act match. Hence, performing query over encrypted data is associated with the
overhead of decrypting the entire encrypted data and then performing the oper-
ations. Here we present two schemes