Towards translating authorizations for transformed XML documents
Towards translating authorizations for transformed XML documents
复制标题
致力于翻译转换后的 XML 文档的授权
DOI：
10.1109/wise.2002.1181665
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Y. Kambayashi
中科院分区：
文献类型：
--
作者：
S. Chatvichienchai;M. Iwaihara;Y. Kambayashi
基于网络的服务和应用程序增加了信息的可用性和可访问性。XML最近成为信息表示领域的一个重要标准。XML文档可以表示不同敏感度级别的信息。然而，在文献中提出的XML访问控制模型直接对XML文档的结构和内容实施访问限制。因此，每当XML文档的结构发生变化时，必须修改指定用户对XML文档中信息的访问权限的授权。我们提出了两种方法，转换转换的XML文档的授权。第一种方法通过源文档的实例节点和转换文档的实例节点之间的实例级映射来转换实例级授权。第二种方法通过使用源模式的模式元素和目标XML模式的模式元素之间的模式映射来转换模式级授权。
Web based services and applications have increased the availability and accessibility of information. XML has recently emerged as an important standard in the area of information representation. XML documents can represent information at different levels of sensitivity. However, XML access control models proposed in the literature enforce access restrictions directly on the structure and content of an XML document. Therefore the authorizations, which specify access rights of users on information within an XML document, must be revised whenever the structure of the XML document is changed. We present two approaches that translate the authorizations for the transformed XML document. The first approach translates instance-level authorizations by using instance-level mapping between instance nodes of source document and those of transformed document. The second approach translates schema-level authorizations by using schema mapping between schema elements of the source schema and those of the target XML schema.