Exam 9: Public-Key Cryptography and Rsa

A __________ is one that maps a domain into a range such that every function value has a unique inverse, with the condition that the calculation of the function is easy, whereas the calculation of the inverse is infeasible.

(Short Answer)

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Question 21

A trap-door one-way function is easy to calculate in one direction and infeasible to calculate in the other direction unless certain additional information is known.

(True/False)

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Question 22

A major advance in symmetric cryptography occurred with the development of the rotor encryption/decryption machine.

(True/False)

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Question 23

the difficulty of attacking __________ is based on the difficulty of finding the prime factors of a composite number.

(Short Answer)

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Question 24

the readable message or data that is fed into the algorithm as input is the ____________ .

(Multiple Choice)

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Question 25

Asymmetric encryption transforms plaintext into __________ using one of two keys and an encryption algorithm.

(Short Answer)

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Question 26

the defense against the brute-force approach for RSA is to use a large key space.

(True/False)

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Question 27

A public-key encryption scheme has __________ ingredients.

(Multiple Choice)

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Question 28

the encryption algorithm performs various transformation on the ciphertext.

(True/False)

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Question 29

We define the ___________ of an algorithm to be f(n) if, for all n and all inputs of length n the execution of the algorithm takes at most f(n) steps.this is a common measure of the efficiency of an algorithm.

(Multiple Choice)

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Question 30

Public-key encryption is more secure from cryptanalysis than symmetric encryption.

(True/False)

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Question 31

Plaintext is recovered from the ciphertext using the paired key and _____________ .

(Multiple Choice)

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Question 32

Asymmetric encryption is also known as ___________ .

(Multiple Choice)

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Question 33

Before the application of the public-key cryptosystem each participant must generate a pair of keys.

(True/False)

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Question 34

Asymmetric encryption can be used for __________ .

(Multiple Choice)

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Question 35

the __________ indicates that the subscriber identified in the certificate has sole control and access to the private key.

(Multiple Choice)

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Question 36

Asymmetric algorithms rely on one key for encryption and a different but related key for decryption.

(True/False)

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Question 37

Plaintext is transformed into ciphertext using two keys and a decryption algorithm.

(True/False)

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Question 38

two issues to consider with the computation required to use RSA are encryption/decryption and __________ .

(Multiple Choice)

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Question 39

to counter attacks such as CCAs, RSA Security, Inc. recommends modifying the plaintext using a procedure known as ___________ .

(Essay)

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Question 40

Showing 21 - 40 of 45

A __________ is one that maps a domain into a range such that every function value has a unique inverse, with the condition that the calculation of the function is easy, whereas the calculation of the inverse is infeasible.

A trap-door one-way function is easy to calculate in one direction and infeasible to calculate in the other direction unless certain additional information is known.

A major advance in symmetric cryptography occurred with the development of the rotor encryption/decryption machine.

the difficulty of attacking __________ is based on the difficulty of finding the prime factors of a composite number.

the readable message or data that is fed into the algorithm as input is the ____________ .

Asymmetric encryption transforms plaintext into __________ using one of two keys and an encryption algorithm.

the defense against the brute-force approach for RSA is to use a large key space.

A public-key encryption scheme has __________ ingredients.

the encryption algorithm performs various transformation on the ciphertext.

We define the ___________ of an algorithm to be f(n) if, for all n and all inputs of length n the execution of the algorithm takes at most f(n) steps.this is a common measure of the efficiency of an algorithm.

Public-key encryption is more secure from cryptanalysis than symmetric encryption.

Plaintext is recovered from the ciphertext using the paired key and _____________ .

Asymmetric encryption is also known as ___________ .

Before the application of the public-key cryptosystem each participant must generate a pair of keys.

Asymmetric encryption can be used for __________ .

the __________ indicates that the subscriber identified in the certificate has sole control and access to the private key.

Asymmetric algorithms rely on one key for encryption and a different but related key for decryption.

Plaintext is transformed into ciphertext using two keys and a decryption algorithm.

two issues to consider with the computation required to use RSA are encryption/decryption and __________ .

to counter attacks such as CCAs, RSA Security, Inc. recommends modifying the plaintext using a procedure known as ___________ .

Computer and Network Security Concepts

Introduction to Number Theory

Classical Encryption Techniques

Advanced Encryption Standard

Block Cipher Operation

Random Bit Generation and Stream Ciphers

Other Public-Key Cryptosystems

Cryptographic Hash Functions

Message Authentication Codes

Digital Signatures

Lightweight Cryptography and Post-Quantum Cryptography

Cryptographic Key Management and Distribution

User Authentication

Wireless Network Security

Electronic Mail Security

Ip Security

Network Endpoint Security

Cloud Security

Internet of Things Iot Security

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