关键词: 云存储, 加密关键字查询, 完备性验证, 完整性验证, 多用户隐查询

Abstract: In order to meet the need of multi-user access and huge amount of data storage in the cloud computing environment, a multi-user public key encryption with keyword search scheme in the cloud computing environment is proposed. This scheme binds keyword index and encrypted data file to achieve completeness verification of query results and integrity verification of data file. It realizes multi-user privacy preserving query, applies dynamical permission management, and deploys Hash query index architecture to realize the rapid access of cloud data. The security analysis illustrates this scheme is secure. The experimental results indicate that it is effective and better than some existing schemes in efficiency of query.

Key words: cloud storage, encrypted keyword query, completeness verification of query results, integrity verification of data file, multi-user privacy preserving query