Since XML tends to become the main format to exchange data over the Internet, it is necessary to define a security model to control the access to the content of these documents. S...
We present a formal, tool-supported approach to the design and maintenance of access control policies expressed in the eXtensible Access Control Markup Language (XACML). Our aim is...
Security services in a multi-user environment are often based on access control mechanisms. Static of an access control policy can be formalised using abstract algebraic models. W...
The heterogeneity problem (in terms of different types of access devices, network bandwidth, preferences/characteristics of the user, etc.) has become a major problem for the Inter...
There would seem to be a natural connection between graphs and information security. This is particularly so in the arena of access control and authorization. Research on applying ...