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CompTIA Exam CAS-004 Topic 4 Question 57 Discussion

Actual exam question for CompTIA's CAS-004 exam
Question #: 57
Topic #: 4
[All CAS-004 Questions]

An loT device implements an encryption module built within its SoC where the asymmetric private key has been defined in a write-once read-many portion of the SoC hardware Which of the following should the loT manufacture do if the private key is compromised?

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Suggested Answer: B

If the asymmetric private key defined in the write-once read-many (WORM) portion of the System on Chip (SoC) is compromised, the IoT device manufacturer cannot simply replace or update the key through software changes due to the nature of WORM memory. The compromised key would necessitate the production of a new IoT device with a redesigned SoC that includes a new, secure private key. This is because the integrity of the encryption module is fundamental to the device's security, and a compromised key cannot be allowed to persist in the hardware.


Contribute your Thoughts:

Alayna
3 months ago
I see your point, Vallie. It might be safer to start fresh with a new device.
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Donte
3 months ago
Haha, I bet the IoT manufacturer is kicking themselves for not using a more secure hardware solution. Looks like they'll be spending some extra cash on those redesigned SoCs!
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Rosalyn
3 months ago
User 2
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Detra
3 months ago
User 1
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Vallie
3 months ago
But wouldn't it be better to manufacture a new loT device with a redesigned SoC to ensure security?
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Kristel
3 months ago
Hmm, I'm not sure. Doesn't the public key part of the infrastructure also need to be updated? Seems like a combination of options might be required.
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Samira
4 months ago
I agree with Malcolm. Replacing the private key is not an option, as it's written into the hardware. Updating the software won't help either. Definitely need a new device with a secure SoC design.
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Paris
2 months ago
C: Releasing a patch for the SoC software might not be effective. A new device with a secure design is the way to go.
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Cruz
2 months ago
B: Agreed, updating the software or replacing the private key won't solve the issue.
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Katie
3 months ago
A: We should definitely manufacture a new IoT device with a redesigned SoC.
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Shawnda
4 months ago
I agree with Shanice, updating the private key seems like the best solution.
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Shanice
4 months ago
I think the manufacturer should use over-the-air updates to replace the private key.
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Malcolm
4 months ago
Option B makes the most sense. If the private key is compromised, the entire device needs to be replaced with a redesigned SoC. Over-the-air updates won't fix the issue.
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Skye
3 months ago
D) Release a patch for the SoC software
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Adrianna
3 months ago
Yes, it's important to take strong measures to protect the security of the IoT device.
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Bette
4 months ago
C) Replace the public portion of the loT key on its servers
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Bong
4 months ago
B) Manufacture a new loT device with a redesigned SoC
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Sherell
4 months ago
A) Use over-the-air updates to replace the private key
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Devorah
4 months ago
I agree, replacing the device seems like the best solution in this case.
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Nada
4 months ago
Option B makes the most sense. If the private key is compromised, the entire device needs to be replaced with a redesigned SoC.
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