Verifiable Keyword Search Encryption Scheme That Supports Revocation of Attributes

In recent years, searchable encryption technology and attribute have been widely used in cloud storage environments, attribute-based schemes can both achieve the retrieval of encrypted data effectively solve access control problem. Considering that existing for only support keyword search do not revocation, most revocation consider computational overhead users ignore large amount resources consumed by authorization centers when updating keys. addition, may lead to partial errors returned results, leading wastage broadband resources. To these issues, this paper proposes an scheme supports is verifiable. realize fine-grained ciphertext data, scenarios dynamic changes user attributes, ensure third-party servers perform process reliably honestly while minimizing computation costs, first, implements with center creating a list key list. At same time, system updates at time request, which reduces overhead. Second, auditor introduced correctness results. Finally, security verified theoretical analysis, efficiency practicality are comparing it other through simulation experiments.