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Operating Systems · End Term · 13 Apr 2025 · January 2025 term · Set 1

Question 7: What is the correct chain of trust as part of securing da…

Question 7

+3 marksOne correct option

What is the correct chain of trust as part of securing data in storage using secure boot?
(i) Boot loader starts execution after validation using signature. (ii) Inherently secure component is taken as root of trust. (iii) Signature of rich OS is validated and loaded. (iv) Check the validity of OS image using signature. (v) Signature of trustlet is validated to detect tampering.

  1. A

    (i) → (ii) → (iii) → (iv) → (v)

  2. B

    (i) → (iii) → (ii) → (v) → (iv)

  3. C

    (ii) → (i) → (iv) → (iii)→ (v)

  4. D

    (ii) → (i) → (iv) → (v) → (iii)

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Correct answer

  • D

    (ii) → (i) → (iv) → (v) → (iii)

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Question 7 of 15 in the IIT Madras BS Operating Systems (Operating Systems) End Term paper sat on 13 Apr 2025, in the January 2025 term (IIT M DEGREE AN EXAM QDB4 13 Apr 2025). It carries 3 marks.

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