April 2002
Intermediate to advanced
816 pages
20h 56m
English
Why have computer security systems in the first place? Why is it necessary to spend (sometimes considerable amounts of) money and computing time making computers more safe? And what does safety mean in this context? These are the questions that guide the fundamental constitution of any security system and will start us on our discussion of the properties that define computer security systems.
The primary function of any computer security system (and, in fact, of most security systems in general) is the protection of a resource from illicit access. Generally, resources that are in need of protection are those whose misuse could cause annoyance or even considerable loss to the user or users of a computer. ...