ss control matrix. ACL is attached to an object and specifies its related subjects.РAccess Control List (ACL)РAccording to table1 and table 2, if we look for insurance data we can write:РTable 2: Access Control Matrix [3]РTable 1:position of an ACL entry [3]Рposition of an ACL entryРAccess Control Lists (ACLs) cont.РFigure 1: Access Control Lists (ACLs)РFrom the figure 1, there are three subjects (Alice, Bob and Fred) and three objects (file1, file 2, and file 3). Each object is set for particular subject permissions. According to figure 1, each file or object has its own ACL. File 1 links to two subjects that are Alice and Fred. File 1 allows a permission to read for both subjects. For ACL of file 2, it allows a permission to write file 2 for Alice and a permission to read file 2 for Bob.
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