Creating synergies in the concept phase
The concept phase is where the security analysis begins. The aim is to map out the threats and choose the correct risk treatment decisions. As a result, a set of cybersecurity goals, claims, and requirements is produced. In this section, we will see how various security work products in the scope of the concept phase can be enhanced by considering inputs from the safety analysis, as well as the safety concept.
Item functions
As we saw earlier, the first step in performing a TARA in the concept phase is to define the item by listing its functions, the boundary at which those functions interact with the rest of the vehicle, and the environment in which the item operates. When performing a TARA for a safety-relevant system, many of the safety artifacts can be easily leveraged or adapted for security analysis.
The functions of the item serve as a valuable resource for grasping its objectives. Understanding the objectives of the system is...
