Description

• Private information retrieval is a protocol. • It can be used to retrieve a particular bit of data from database without interfering server. • Using striping technique, we distribute the database to a number of cooperative peers, and leverage their computational resources to process cPIR queries in parallel. • GR-PIR can extract two blocks with one query by making the order of divisible by two values. This modification can also be applied in combination with our striping technique, in order to allow the retrieval of two stripes (i.e., database pages) with a single query.