In the Chinese Wall model suppose the Bank COI Class contain

In the Chinese Wall model, suppose the Bank COI Class contains Bank of America, Citibank, and Bank of the West; the Gasoline Company COI Class contains Shell Oil, Standard Oil, and Exxon. Suppose initially user Alice can read all the companies\' data. After Alice reads Shell Oil\'s data, which companies\' data can Alice still read? If a system only stores the basic access control matrix, can the system enforce the Chinese Wall model and why?

Solution

Dear Student,

Will you please submit this question again so as to make it full.

Actually this is cutting short.

Sorry.