Secure Conjunctive Keyword Search over Encrypted Data

摘要: We study the setting in which a user stores encrypted documents (e.g. e-mails) on an untrusted server. In order to retrieve satisfying certain search criterion, gives server capability that allows identify exactly those documents. Work this area has largely focused criteria consisting of single keyword. If is actually interested containing each several keywords (conjunctive keyword search) must either give capabilities for individually and rely intersection calculation (by or user) determine correct set documents, alternatively, may store additional information facilitate such searches. Neither solution desirable; former enables learn match individual conjunctive latter results exponential storage if searches every keywords.