⊙ PKI / CA certification is required for main hardware and system software

Risk identification 3. Pre estimate the possible consequences of the identified risks - risk assessment 4. Design the corresponding original Countermeasures - control risks according to the magnitude and priority of risks 5. Carry out input-output assessment on the design countermeasures 6. Transfer from feasible to 7. Return from infeasible 17. Design 8. Implement 25.2 safety risk identification 25.3 risk identification and risk assessment methods