SSV Software SystemsCyber resilience for IoT applications
In terms of resistance to cyber attacks, there is still a great need for action - especially in applications with fully automatic software update functions.
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<p>Figure 2: Chain of trust of an IoT device: An SoC hardware reset starts component A. This checks the digital signature of the embedded operating system (DS-B in component B) with the public key PK-A. If the check is successful, B takes control of the SoC. In the same way, B can now securely start firmware components C and D if required.</p>
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