Document Attribute-based Keyword Search over Encrypted Data

As the cloud computing popularizes, sensitive data need to be encrypted before outsourcing, which makes the traditional data utilization useless. So search over these encrypted documents is a very challenging task. This paper firstly descripts the framework of the searchable encryption, and then presents the existing keyword-based search technologies. At last, we propose a novel color-based keyword search scheme for encrypted office document. Two vectors on behalf of the keywords and the corresponding color are used. The scheme can return top-k set as correct as possible meeting user's requirements.