Chapter 14. Access Control Mechanisms
CASSIO: Why, no. The day had broke Before we parted. I ha' made bold, Iago, To send in to your wife. My suit to her Is that she will to virtuous Desdemona Procure me some access.
|-- The Tragedy of Othello, III, i, 32–36.|
Recall the access control matrix discussed in Chapter 2. As in the theoretical model, an implementation of the array and the commands to manipulate it provide a mechanism that the system can use to control access to objects. Unfortunately, there are several problems with a straightforward implementation. On a typical system, the number of subjects and objects will be sufficiently large that the matrix's size will use significant amounts of storage. Second, most entries in the matrix will ...