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Research on Mandatory Access Control in XML Database System

Author: LuoRong
Tutor: ZhuHong
School: Huazhong University of Science and Technology
Course: Computer Software and Theory
Keywords: Extensible Markup Language Database Security policy Mandatory Access Control
CLC: TP311.13
Type: Master's thesis
Year: 2007
Downloads: 69
Quote: 0
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Abstract


Extensible Markup Language ( eXtensible Markup Language , XML ) , access control is to ensure the the XML security of an important technology . XML document stored in the XML database in order to provide effective mandatory access control , the problems from the existing mandatory access control model for XML Documents and access control needs of granularity , the to reference existing XML access control system architecture , the design and Implementation of an XML - oriented database XML universal mandatory access control system . XML General mandatory access control system allows the system security officer to create a security policy based on application requirements , meet the requirements of different applications of XML document implementing fine-grained mandatory access control requirements . The system is based on the powerful XML schema ( XML Schema ) , to support the transfer of tags from the XML schema documents to an XML document instance , and gives a solution marked conflict : subtags principle of giving priority to the least upper bound principle . XML General mandatory access control system mainly consists of policy management module , a policy service module and query processing module . In the Policy Management module is responsible for the creation and organization of the security policy ; policy service module tag types and tag access policy based on security policy in the subject and object allocation marker ; query processing module is responsible for the implementation of mandatory access control to user queries . Implementation of mandatory access control on the user's query , the system rewrite the original query submitted by a user based on the user mark and access rules , can effectively prevent users from using the query with the query result in information disclosure , but not yet the result in the end of the query returned to the user when the concentration of each element of the test results based on user token and access rules will only comply with the rules of the elements returned to the user to achieve the mandatory access control for XML query . Experimental system functional testing and efficiency testing , experimental data show that XML universal mandatory access control system to effectively implement the XML document mandatory access control .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Database theory and systems
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