Title :
Extending the Brewer-Nash model to a multilevel context
Author :
Meadows, Catherine
Author_Institution :
US Naval Res. Lab., Washington, DC, USA
Abstract :
It is shown how the Brewer-Nash Chinese wall model can be extended to a policy for handling the aggregation problem in a multilevel context. A lattice-based information flow policy that can be integrated into both the multilevel and Drewer-Nash context is derived. This information flow policy is used to develop a security policy described in terms of labeled subjects accessing labeled objects that will make it possible to construct a system that prevents users from accessing aggregates that they are not cleared to see
Keywords :
data privacy; security of data; Brewer-Nash model; Chinese wall model; aggregation problem; data accession; labeled objects; labeled subjects; lattice-based information flow policy; multilevel context; security policy; Aggregates; Books; Context modeling; Data security; Databases; Information security; Information technology; Laboratories; Particle beams; Weapons;
Conference_Titel :
Research in Security and Privacy, 1990. Proceedings., 1990 IEEE Computer Society Symposium on
Conference_Location :
Oakland, CA
Print_ISBN :
0-8186-2060-9
DOI :
10.1109/RISP.1990.63842
