Data Integrity Algorithms Questions and Answers – Hash Functions and Its Applications

This set of Cryptography Multiple Choice Questions & Answers (MCQs) focuses on “Hash Functions and Its Applications”.

1. When a hash function is used to provide message authentication, the hash function value is referred to as
a) Message Field
b) Message Digest
c) Message Score
d) Message Leap
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2. Message authentication code is also known as
a) key code
b) hash code
c) keyed hash function
d) message key hash function
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3. The main difference in MACs and digital signatures is that, in digital signatures the hash value of the message is encrypted with a user’s public key.
a) True
b) False
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4. Case b ( refer Figure 1 From The chapter Message Authentication Codes in William Stallings )is an example of digital signature.
a) True
b) False
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5. What is a one-way password file?
a) A scheme in which the password is jumbled and stored
b) A scheme in which the password is XOR with a key and stored
c) A scheme in which the hash of the password is stored
d) A scheme in which the password is passed through a PRF, which is then stored
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6. Which one of the following is not an application hash functions?
a) One-way password file
b) Key wrapping
c) Virus Detection
d) Intrusion detection
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7. If the compression function is collision resistant, then so is the resultant iterated hash function.
a) True
b) False
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8. A larger hash code cannot be decomposed into independent subcodes.
a) True
b) False
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Sanfoundry Global Education & Learning Series – Cryptography and Network Security.

To practice all areas of Cryptography and Network Security, here is complete set of 1000+ Multiple Choice Questions and Answers.