This set of MCQ(multiple choice questions) focuses on the Foundations of Cryptography NPTEL Week 7 Assignment Solutions.
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- Week 1: Assignment answers
- Week 2: Assignment answers
- Week 3: Assignment answers
- Week 4: Assignment answers
- Week 5: Assignment answers
- Week 6: Assignment answers
- Week 7: Assignment answers
- Week 8: Assignment answers
- Week 9: Assignment answers
- Week 10: Assignment answers
- Week 11: Assignment answers
- Week 12: Assignment answers
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Foundations of Cryptography NPTEL Week 7 Assignment Solutions
Q1. Which of the following is/are true for the hash-function based commitment scheme?
a) Collision-resistance property for the underlying hash function is not necessary for the binding property of the commitment scheme
b) Collision-resistance property for the underlying hash function is necessary for the binding property of the commitment scheme
c) The binding property can be proved only in the random-oracle model
Answer: b)
Q2. Choose the correct option(s) from the following:
a) If an encryption scheme is CCA-secure, then it is also an authenticated encryption scheme
b) If an encryption scheme is an authenticated encryption scheme, then it is also CCA-secure
c) If an encryption scheme is an authenticated encryption scheme, then it is also CPA-secure
d) If an encryption scheme is CPA-secure, then it is also an authenticated encryption scheme
Answer: b), c)
Q3.
a) Using a CMA-secure MAC solves the problem
b) Using an SCMA-secure MAC solves the problem
c) Neither a CMA-secure MAC, nor an SCMA-secure MAC can solve the problem
d) Using an information-theoretically secure MAC solves the problem
Answer: c)
Q4.
Answer: a), b)
Q5.
Answer: a), b)
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Week 8 answers bro…today is the last day to submit
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Bro plz upload week 8 , today is the last.
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