Cryptography and Network Security Quiz1
Authored by azooz_dhamri azooz_dhamri
Computers
University
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the fundamental building blocks of encryption used in DES?
Multiplication and rotation
Addition and division
Substitution and permutation
Exponentiation and reflection
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the encryption technique that uses two instances of DES on the same plaintext?
Single-DES
Triple-DES
Double-DES
Quadruple-DES
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which encryption technique uses three instances of DES on the same plaintext?
Quintuple-DES
Triple-DES
Double-DES
Single-DES
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which concept does the Feistel cipher implement?
ElGamal encryption
RSA encryption
Shannon’s S-P network
Diffie-Hellman key exchange
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the requirement for the generation of a sequence of random numbers to be considered statistically random?
Non-randomness
Predictability
Dependent subsequence
Uniform distribution
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which stream cipher encrypts plaintext one byte at a time?
AES
RC4
Blowfish
DES
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who designed the RC4 stream cipher in 1987?
Ron Rivest
Adi Shamir
Leonard Adleman
Whitfield Diffie
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