An Additive Order And Privacy Preserving Function Family (AOPPF)

The plentiful benefits of cloud computing, for privacy concerns, individuals and enterprise users are disinclined to outsource their susceptible data, including emails, personal health records and government confidential files, to the cloud. This is as once sensitive data are outsourced to a inaccessible cloud, the analogous data owners lose direct control of these data. We identify a multi-owner model for privacy preserving keyword search over encrypted cloud data. We recommend an capable data user , which not only prevents attackers from eavesdropping secret keys and imaginary to be illegal data users performing searches, but also facilitate data user certification and revocation.