Question 1

The most widely used public-key cryptosystem is __________ .

Accepted Answer

A) optimal asymmetric encryption 
B) asymmetric encryption 
C) RSA 
D) DES 
A) optimal asymmetric encryption 
B) asymmetric encryption 
C) RSA 
D) DES

Question 2

A public-key encryption scheme is not vulnerable to a brute-force attack.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) ciphertext 
B) exchange 
C) plaintext 
D) encryption 
A) ciphertext 
B) exchange 
C) plaintext 
D) encryption

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

A __________ is a cryptographic algorithm that uses two related keys,a public key and a private key.The two keys have the property that deriving the private key from the public key is computationally infeasible.

Accepted Answer

A) Private Key Symmetric Cryptographic Algorithm 
B) Key Exchange Cryptographic Algorithm 
C) Public Key Asymmetric Cryptographic Algorithm 
D) RSA Digital Cryptographic Algorithm 
A) Private Key Symmetric Cryptographic Algorithm 
B) Key Exchange Cryptographic Algorithm 
C) Public Key Asymmetric Cryptographic Algorithm 
D) RSA Digital Cryptographic Algorithm

Question 6

A public-key encryption scheme has __________ ingredients.

Accepted Answer

A) six 
B) four 
C) eight 
D) two 
A) six 
B) four 
C) eight 
D) two

Question 7

The scrambled message produced as output is the __________ .It depends on the plaintext and the key.

Accepted Answer

The answer of The scrambled message produced as output is...

Question 8

Public-key algorithms are based on __________ .

Accepted Answer

A) permutation 
B) mathematical functions 
C) substitution 
D) symmetry 
A) permutation 
B) mathematical functions 
C) substitution 
D) symmetry

Question 9

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

Accepted Answer

A) time complexity 
B) trap-door one-way functions 
C) key generation 
D) asymmetric encryption padding 
A) time complexity 
B) trap-door one-way functions 
C) key generation 
D) asymmetric encryption padding

Question 10

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

Accepted Answer

A) digital signature 
B) recovery encryption 
C) decryption algorithm 
D) encryption algorithm 
A) digital signature 
B) recovery encryption 
C) decryption algorithm 
D) encryption algorithm

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

Asymmetric encryption utilizes only a public key for encryption and decryption.

Accepted Answer

A) True 
 B)False

Question 13

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.

Accepted Answer

A) True 
 B)False

Question 14

The __________ is a set of policies,processes,server platforms,software and workstations used for the purpose of administering certificates and public-private key pairs,including the ability to issue,maintain,and revoke public key certificates.

Accepted Answer

Public Key

Question 15

__________ depend on the running time of the decryption algorithm.

Accepted Answer

A) Mathematical attacks 
B) Timing attacks 
C) Chosen ciphertext attacks 
D) Brute-force attacks 
A) Mathematical attacks 
B) Timing attacks 
C) Chosen ciphertext attacks 
D) Brute-force attacks

Question 16

A __________ is when two sides cooperate to exchange a session key.

Accepted Answer

The answer of A __________ is when two sides cooperate...

Question 17

Public-key cryptography is asymmetric,involving the use of two separate keys,in contrast to ___________ encryption,which uses only one key.

Accepted Answer

The answer of Public-key cryptography is asymmetric,involving the use of...

Question 18

__________ encryption is a form of cryptosystem in which encryption and decryption are performed using a public key and a private key.

Accepted Answer

The answer of __________ encryption is a form of cryptosystem...

Question 19

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.

Accepted Answer

The answer of A __________ is one that maps a...

Question 20

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

Accepted Answer

The answer of The difficulty of attacking __________ is based...

The most widely used public-key cryptosystem is __________ .

A public-key encryption scheme is not vulnerable to a brute-force attack.

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

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

A __________ is a cryptographic algorithm that uses two related keys,a public key and a private key.The two keys have the property that deriving the private key from the public key is computationally infeasible.

A public-key encryption scheme has __________ ingredients.

The scrambled message produced as output is the __________ .It depends on the plaintext and the key.

Public-key algorithms are based on __________ .

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

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

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

Asymmetric encryption utilizes only a public key for encryption and decryption.

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.

The __________ is a set of policies,processes,server platforms,software and workstations used for the purpose of administering certificates and public-private key pairs,including the ability to issue,maintain,and revoke public key certificates.

__________ depend on the running time of the decryption algorithm.

A __________ is when two sides cooperate to exchange a session key.

Public-key cryptography is asymmetric,involving the use of two separate keys,in contrast to ___________ encryption,which uses only one key.

__________ encryption is a form of cryptosystem in which encryption and decryption are performed using a public key and a private key.

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.

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

Overview

Classical Encryption Techniques

Block Ciphers and the Data Encryption Standard

Basic Concepts in Number Theory and Finite Fields

Advanced Encryption Standard

Block Cipher Operation

Random and Pseudorandom Number

More Number Theory

Other Public-Key Cryptosystems

Cryptographic Hash Functions

Message Authentication Codes

Digital Signatures

Key Management and Distribution

User Authentication Protocols

Network Access Control and Cloud Security

Transport-Level Security

Wireless Network Security

Electronic Mail Security

Ip Security

Filters

Exam 9: Public-Key Cryptography and Rsa

The most widely used public-key cryptosystem is __________ .

A public-key encryption scheme is not vulnerable to a brute-force attack.

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

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

A __________ is a cryptographic algorithm that uses two related keys,a public key and a private key.The two keys have the property that deriving the private key from the public key is computationally infeasible.

A public-key encryption scheme has __________ ingredients.

The scrambled message produced as output is the __________ .It depends on the plaintext and the key.

Public-key algorithms are based on __________ .

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

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

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

Asymmetric encryption utilizes only a public key for encryption and decryption.

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.

The __________ is a set of policies,processes,server platforms,software and workstations used for the purpose of administering certificates and public-private key pairs,including the ability to issue,maintain,and revoke public key certificates.

__________ depend on the running time of the decryption algorithm.

A __________ is when two sides cooperate to exchange a session key.

Public-key cryptography is asymmetric,involving the use of two separate keys,in contrast to ___________ encryption,which uses only one key.

__________ encryption is a form of cryptosystem in which encryption and decryption are performed using a public key and a private key.

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.

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

Overview

Classical Encryption Techniques

Block Ciphers and the Data Encryption Standard

Basic Concepts in Number Theory and Finite Fields

Advanced Encryption Standard

Block Cipher Operation

Random and Pseudorandom Number

More Number Theory

Other Public-Key Cryptosystems

Cryptographic Hash Functions

Message Authentication Codes

Digital Signatures

Key Management and Distribution

User Authentication Protocols

Network Access Control and Cloud Security

Transport-Level Security

Wireless Network Security

Electronic Mail Security

Ip Security

Filters