Fundamental Information Security Cryptography Exam 2025 Questions and Answers 100% Pass

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Fundamental Information Security
Cryptography Exam 2025 Questions and
Answers 100% Pass

A keyword mixed alphabet cipher uses a cipher alphabet that consists of a

keyword, minus duplicates, followed by the remaining letters of the alphabet

true or false - ANSWER-true

Which set of characteristics describes the Caesar cipher accurately?

answers:

Asymmetric, block, substitution

Asymmetric, stream, transposition

Symmetric, stream, substitution

Symmetric, block, transposition - ANSWER-Symmetric, stream, substitution

Gary is sending a message to Patricia. He wants to ensure that nobody tampers

with the message while it is in transit. What goal of cryptography is Gary

attempting to achieve?

COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1

, answers:

Confidentiality

Integrity

Authentication

Nonrepudiation - ANSWER-Integrity

Digital signatures require asymmetric key cryptography.

true or false - ANSWER-true

What mathematical problem forms the basis of most modern cryptographic

algorithms?

answers:

Factoring large primes

Traveling salesman problem

Quantum mechanics

Birthday problem - ANSWER-Factoring large primes

Which cryptographic attack offers cryptanalysts the most information about how

an encryption algorithm works?

Answers:

Chosen plaintext

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