A Trace-Based Model of the Chinese Wall Security Policy
Ann E. Kelley, Jim Alves-Foss · 1999
The Chinese Wall security policy is a well known information control policy used in the commercial world to specify control over information when con icts of interest arise. A tracebased information ow control model for the Chinese Wall security policy is presented. This model is enhanced to permit con ict time frames for obtained information and revocation of access rights to a particular data object. The trace-based model is shown to be less restrictive, more robust, and more precise than existing Chinese Wall security policy models.