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Cloud, coming days is accustomed, more and more receptive data are being centralized into the cloud. In cloud, the authors make perceptive information habitually have to be ciphertext before outsourcing because of protecting of data privacy; it makes efficient information exploitation a very tough assignment. While traditional searchable ciphertext schemes permit a consumer to securely seek over ciphertext information through keywords and selectively reclaim records of attention, these techniques bear only precise keyword search. That is, here lenience of trivial typos and configure inconsistencies which, on another hand, are distinctive consumer penetrating activities and happen very recurrently.
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