The Design And Implementation Of Acess Contral System For XML Database

XML is extensible markup language which could be used to describe data,with the widely application of XML, XML data security becomes more and more important,access control is an important mean to guarantee the safety of XML data. Different with the traditional access control to XML document, for XML database access control needs not only in the documents and fragment of XML data level of implementation of the fine particle size control, but also need to manage database. This system combined with the ChengYunZhiRui XML database project, in order to achieve convenient, agile, practical access control model for target, object-oriented XML database access control is on research and design.According to the XML database design goal and the access control requirements, the system is divided into user authentication and management module, system management module, object access permissions management module. The user login XML database system, first of all need to the authentication, to confirm whether the user can enter the system, the user authentication and management module that is responsible for this responsibility, and at the same time system administrator in the system create users and role to simplify the system administrator’s work. Users with the system operation permissions can participate in the system’s management work, the system default system administrator has all system permissions, ordinary users or role need administrator’s authorization, system management module completed the function. The system administrator has all object permissions to operation an XML document, ordinary users or role need administrator awarded object privileges to add, deletion, look up XML document, object privileges management module can complete this function.Various system function test show that the XML database access control system can complete scheduled demand function, achieve fine-grained access control, to reach the design requirement.