3.6.3. Security and TrustZone

Try these first

1. 1.

   What is TrustZone?

   Hint

   Think about how security zones work.

2. 2.

   Can developers using Cortex-M0 implement security?

   Hint

   Consider the absence of TrustZone.

3. 3.

   What technology does the Cortex-M0 lack that is found in higher-end ARM processors?

   • Hardware Security Module
   • TrustZone
   • Secure Boot

   Hint

   Think about security features that separate secure areas of execution.

4. 4.

   True or False: Developers cannot implement any form of security on ARM Cortex-M0.

   • True
   • False

   Hint

   Consider how developers might protect their applications.

5. 5.

   You are designing an embedded system for a home security device. Discuss the essential security measures you would implement considering the absence of TrustZone.

   Hint

   Think about ways to stop unwanted access to your home.

6. 6.

   Analyze the risks associated with failing to secure an embedded medical device that stores sensitive patient information.

   Hint

   Consider both the privacy of the patient and the liability of the medical provider.