Model Design on DAS and Research of XML Encrypted Data Querying

We have designed a DAS (Data As a Service) model of e-commerce by using the semi-structured xml data file system instead of traditional database--the general B / S model, which mainly includes the clients’ data encryption, key management on the server and xml encrypted data querying processing on the service provider. The searching method that we connected the xml index‘s skill and dewey encoding [1,2] based on the level to achieve users’ order query processing of xml encrypted data. This project has greatly reduced the system’s maintenance costs and improved the system’s capability and operating efficiency. At the same time it can help the enterprise to promote their benefits under the premise of guaranteeing the system’s security and stability.