A Java game application utilizes local system code to access…

A Java game application utilizes local system code to access the screen but the image drawn on the screen is generated by code from a graphics company. The game code calls the image generation code which then calls system code to access the screen. When doPrivileged() is not used, the game can draw the image on the screen when the security policy grants access to the screen to

An access control matrix (ACM) defines access rights users h…

An access control matrix (ACM) defines access rights users have for various resources,  We define an active user as one who is currently logged into the system. Similarly, an active resource is one that has currently been requested and granted to some user. The size and state of an ACM in a system depends on