ITM 706 Lecture Notes - Lecture 8: Parallel Computing, Trusted Computer System Evaluation Criteria, Microsoft Powerpoint
11 May 2015
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Friday, march 20, 2015: deadlock and starvation. Process starvation: a process in an endless loop/waiting state. Starvation & deadlock are part of a multitasking state and parallel computing problems. One of the major problems is assigning high level priority to processes: fifo queue, lifo stock. Bank system application (database: process f has the highest priority. Force to end: design a no-circular wait. A system can operate in different modes depending on the sensitivity of the data being processed and the clearance level of users. The mode of operation describes the security conditions under which the system actually functions. The modes are used in mac systems which hold one or more classifications of data. (ts, secret, *additional security notes powerpoint on blackboard: enterprise security, implement mac (mandatory access control, implement cia policy. Cia: confidentiality -> permission, authentication -> password length. Contains 7 property levels: sec policy, identification (something that you have)
