# NPTEL Cryptography And Network Security Assignment 7 Answer

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NPTEL Cryptography And Network Security Assignment 7 Answer – Here All The Questions and Answers Provided to Help All The Students and NPTEL Candidate as a Reference Purpose, It is Mandetory to Submit Your Weekly Assignment By Your Own Understand Level.

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## NPTEL Cryptography And Network Security Assignment

The aim of this course is to introduce the student to the areas of cryptography and cryptanalysis. This course develops a basic understanding of the algorithms used to protect users online and to understand some of the design choices behind these algorithms. Our aim is to develop a workable knowledge of the mathematics used in cryptology in this course. The course emphasizes to give a basic understanding of previous attacks on cryptosystems with the aim of preventing future attacks. A wide variety of basic cryptographic primitives will be discussed along with recent developments in some advanced topics like identity-based encryption, attribute-based encryption, functional encryption, two-party/multi-party computation, bitcoin and crypto-currency and postquantum cryptography. The cryptanalysis part will help us understanding challenges for cybersecurity that includes network security, data security, mobile security, cloud security and endpoint security.

**INDUSTRY SUPPORT :**Stratign FZE, Dubai(UAE), SAG, DRDO, ISRO, WESEE, NTRO.

**Next Week Assignment Answers**

This course can have Associate in Nursing unproctored programming communication conjointly excluding the Proctored communication, please check announcement section for date and time. The programming communication can have a weightage of twenty fifth towards the ultimate score.

- Assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
**( All assignments in a particular week will be counted towards final scoring – quizzes and programming assignments).**- Unproctored programming exam score = 25% of the average scores obtained as part of Unproctored programming exam – out of 100
- Proctored Exam score =50% of the proctored certification exam score out of 100

**YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF ASSIGNMENT SCORE >=10/25 AND**

**UNPROCTORED PROGRAMMING EXAM SCORE >=10/25 AND PROCTORED EXAM SCORE >= 20/50.**

**If any one of the 3 criteria is not met, you will not be eligible for the certificate even if the Final score >= 40/100.**

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*BELOW YOU CAN GET YOUR NPTEL Cryptography And Network Security Assignment 7 Answer 2022***?** :

**?**:

1. If r = 4(mod 17), r = 3(mod 11), then r =. (mod 187).

(a) 32

(b) 157

(c) 34

(d) 23

Answer:- b

2. Rabin cryptosystem is secure under the hardness of__________.

(a) decoding problem

(b) discrete logarithm problem

(c) factorization

(d) Subset-sum

Answer:- c

Cryptography And Network Security Assignment 7 Answers 2022

3.

Cryptography And Network Security Assignment 7 Answers 2022

Answer:- c

4. (11/51) +(7/11) =____________

(a) 1

(b) 0

(c)2

(d)-1

Answer:- b

5. All quadratic residues modulo 17 are_________________.

(a) 1,2,4, 8, 9, 13, 14, 16

(b) 1,2,4, 8,9, 11, 15, 16

(c) 1,2,3,8, 9, 13, 15, 16

(d) 1,2,4, 8,9, 13, 15, 16

Answer:- d

6. Let p, q are odd positive integers. Then, (p/q)= -(q/p)if

(a) p=q= 3(mod 4)

(b) p=q= 1(mod 4)

(C)p= q= 2(mod 4)

(d) none of these above

Answer:- a

Cryptography And Network Security Assignment 7 Answers 2022

7. Using Rabin cryptosystem with n = 161, encrypt message m = 24. The Ciphertext is ____________.

(a) 47

(b) 44

(c) 65

(d) 93

Answer:- d

8. Quadratic non-residues modulo 19 are ___________.

(a) 2,3,8, 10, 12, 13, 14, 17, 18

(b) 2,3,8, 11, 12, 13, 14, 15, 18

(c) 2,4,8, 10, 12, 13, 14, 15, 18

(d) 2,3,8, 10, 12, 13, 14, 15, 18

Answer:- d

9.

Cryptography And Network Security Assignment 7 Answers 2022

Answer:- c

10. Evaluate (4015/331).

(a). 0

(b). 2

(c). -1

(d). 1

Answer:- d

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