March 2015
Intermediate to advanced
816 pages
36h 46m
English
Content preview from Software Engineering, 10th Edition
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13.3 Security requirements
The specification of security requirements for systems has much in common with the specification of safety requirements. You cannot specify safety or security requirements as probabilities. Like safety requirements, security requirements are often “shall not” requirements that define unacceptable system behavior rather than required system functionality.
However, security is a more challenging problem than safety, for a number of reasons:
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When considering safety, you can assume that the environment in which the system is installed is not hostile. No one is trying to cause a safety-related incident. When considering security, you have to assume that attacks on the system are deliberate and that the attacker may ...
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