Welcome to the Cryptographic Hash Functions MCQs Page

Dive deep into the fascinating world of Cryptographic Hash Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Cryptographic Hash Functions, a crucial aspect of Cryptography and Network Security. In this section, you will encounter a diverse range of MCQs that cover various aspects of Cryptographic Hash Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Cryptography and Network Security.

Check out the MCQs below to embark on an enriching journey through Cryptographic Hash Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Cryptography and Network Security.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Cryptographic Hash Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Cryptographic Hash Functions MCQs | Page 7 of 8

Explore more Topics under Cryptography and Network Security

01

Cryptography Basics

02

Encryption Techniques

03

Data Encryption Standard

04

Number Theory and Finite Fields

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Advanced Encryption Algorithm

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Pseudorandom Number Generation and Stream Ciphers

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Q61.

In the Theta step function, which is a substitution step, each bit value changes. Each bit is dependent on _________ other bits for its new value.

Discuss

Answer: (d).11

Q62.

Which step function provides most amount of diffusion for the Keccak iteration step?

Theta

Rho

Chi

Discuss

Answer: (a).Theta

Q63.

The Pi step function can be written as-

(x, y) × (y, (x + y))

(x, y) × (y, (2x + 3y))

(x, 2y) × (y, (2x + 3y))

(x, 2y) × (y, (x + y))

Discuss

Answer: (b).(x, y) × (y, (2x + 3y))

Q64.

The CHI step involves which of the following gate operations?

AND and NAND

AND and XOR

XOR and NAND

XOR and XNOR

Discuss

Answer: (b).AND and XOR

Q65.

Which matrix is used in the Rho/ Pi steps?

[(1 2 | 3 4)]^t

[(0 2 | 1 4)]^t

[(0 1 | 2 3)]^t

[(1 3 | 2 4)]^t

Discuss

Answer: (c).[(0 1 | 2 3)]^t

Q66.

What are the new co-ordinates for (x, y) in the Rho step for t =3?

(1, 7)

(1, 4)

(3, 2)

none of the mentioned

Discuss

Answer: (d).none of the mentioned

Q67.

The Rho function is defined as : a[x, y, z] ← a[x, y, z-g(t)], where g(t) is defined as

(t+1)(t+2)/2

(t+1)(t-2)/2

(t-1)(t-2)/2

(t-1)(t+2)/2

Discuss

Answer: (a).(t+1)(t+2)/2

Q68.

The Chi function is defined as

a[x] ← a[x] XOR ( a[x + 1]XOR 1) AND a[x+2])

a[x] ← a[x] AND ( a[x + 1]XOR 1) AND a[x+2])

a[x] ← a[x] AND ( a[x + 1] XOR a[x+2])

a[x] ← a[x] XOR ( a[x + 1] AND a[x+2])

Discuss

Answer: (a).a[x] ← a[x] XOR ( a[x + 1]XOR 1) AND a[x+2])

Q69.

In SHA-3, the Iota step function has a round constant which only works on the last lane.

True

False

May be

Can't say

Discuss

Answer: (b).False

Q70.

Which is the only step function that provides non-linear mapping?

Theta

Rho

Chi

Discuss

Answer: (d).Chi

Page 7 of 8

Welcome to the Cryptographic Hash Functions MCQs Page

Cryptographic Hash Functions MCQs | Page 7 of 8

Explore more Topics under Cryptography and Network Security

Cryptography Basics

Encryption Techniques

Data Encryption Standard

Number Theory and Finite Fields

Advanced Encryption Algorithm

Pseudorandom Number Generation and Stream Ciphers

Public Key Cryptography and RSA

Message Authentication Codes and Key Management

Network Security Concepts

Security in the Internet

Wireless Network Security

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