Question 1

Which of the following asymmetric cryptography algorithms is most commonly used?

Accepted Answer

A)  AES
B)  RSA
C)  Twofish
D)  BlowfishE) All of the above
F) B) and D)

Question 2

Which of the following is not one of the functions of a digital signature?

Accepted Answer

A)  verification of the sender
B)  prevention of the sender from disowning the message
C)  prove the integrity of the message
D)  protect the public keyE) B) and C)
F) None of the above

Question 3

Which of the following is a public key system that generates random public keys that are different for each session?

Accepted Answer

A)  ephemeral-secrecy
B)  perfect forward secrecy
C)  public secrecy
D)  random-key exchangeE) None of the above
F) A) and B)

Question 4

If using the MD5 hashing algorithm,what is the length to which each message is padded?

Accepted Answer

A)  32 bits
B)  64 bits
C)  128 bits
D)  512 bitsE) C) and D)
F) B) and C)

Question 5

The XOR cipher is based on the binary operation eXclusive OR that compares two bits.

Accepted Answer

A) True 
 B)False

Question 6

What type of cryptography uses two keys instead of just one,generating both a private and a public key?

Accepted Answer

A)  symmetric
B)  asymmetric
C)  shared
D)  openE) B) and C)
F) A) and B)

Question 7

Ciphertext is the scrambled and unreadable output of encryption.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is more secure than software encryption?

Accepted Answer

A)  hardware encryption
B)  private encryption
C)  application encryption
D)  full disk encryptionE) A) and B)
F) B) and C)

Question 9

What type of message authentication code uses hashing to authenticate the sender by using both a hash function and a secret cryptographic key?

Accepted Answer

A)  SHA-384
B)  HMAC
C)  RIPEMD
D)  MD5E) A) and B)
F) A) and C)

Question 10

Which key exchange requires Alice and Bob to each agree upon a large prime number and related integer?

Accepted Answer

A)  Quantum Prime
B)  Prime-Curve
C)  Diffie-Hellman
D)  Elliptic Curve Diffie-HellmanE) A) and B)
F) B) and C)

Exam 3: Basic Cryptography

Which of the following is not one of the functions of a digital signature?

Correct Answer
verified

What type of cryptography uses two keys instead of just one,generating both a private and a public key?

Correct Answer
verified

Which of the following asymmetric cryptography algorithms is most commonly used?

Correct Answer
verified

Ciphertext is the scrambled and unreadable output of encryption.

Correct Answer
verified

Which of the following is a public key system that generates random public keys that are different for each session?

Correct Answer
verified

The XOR cipher is based on the binary operation eXclusive OR that compares two bits.

Correct Answer
verified

Which key exchange requires Alice and Bob to each agree upon a large prime number and related integer?

Correct Answer
verified

What type of message authentication code uses hashing to authenticate the sender by using both a hash function and a secret cryptographic key?

Correct Answer
verified

If using the MD5 hashing algorithm,what is the length to which each message is padded?

Correct Answer
verified

Which of the following is more secure than software encryption?

Correct Answer
verified

Exam 3: Basic Cryptography

Which of the following is not one of the functions of a digital signature?

Correct AnswerverifiedShow Answer

What type of cryptography uses two keys instead of just one,generating both a private and a public key?

Correct AnswerverifiedShow Answer

Which of the following asymmetric cryptography algorithms is most commonly used?

Correct AnswerverifiedShow Answer

Ciphertext is the scrambled and unreadable output of encryption.

Correct AnswerverifiedShow Answer

Which of the following is a public key system that generates random public keys that are different for each session?

Correct AnswerverifiedShow Answer

The XOR cipher is based on the binary operation eXclusive OR that compares two bits.

Correct AnswerverifiedShow Answer

Which key exchange requires Alice and Bob to each agree upon a large prime number and related integer?

Correct AnswerverifiedShow Answer

What type of message authentication code uses hashing to authenticate the sender by using both a hash function and a secret cryptographic key?

Correct AnswerverifiedShow Answer

If using the MD5 hashing algorithm,what is the length to which each message is padded?

Correct AnswerverifiedShow Answer

Which of the following is more secure than software encryption?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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