Question 1
1 / 1 pts
0 multiple_choice_question   1789030
In which of the block cipher modes are the blocks truly independent of each other?
 
exact_answer none 73702
Correct!
 
exact_answer none 30177
 
exact_answer none 87358
 
exact_answer none 30557
 
Question 2
1 / 1 pts
0 multiple_choice_question   1789018
Which authentication factor does a recent passport NOT have information about?
Correct!
 
exact_answer none 78970
 
exact_answer none 86205
 
exact_answer none 47863
 
exact_answer none 51163
 
Question 3
1 / 1 pts
0 multiple_choice_question   1789036
Given an RSA algorithm where de mod w = 1, and e=3, w=10, d<>e, what is d?
Correct!
 
exact_answer none 36732
 
exact_answer none 49485
 
exact_answer none 81186
 
exact_answer none 78747
 
Question 4
1 / 1 pts
0 multiple_choice_question   1789027
In an n-bit LFSR, what happens if IV is set to zero before it starts?
 
exact_answer none 51373
 
exact_answer none 34765
Correct!
 
exact_answer none 85530
 
exact_answer none 14865
 
Question 5
1 / 1 pts
0 multiple_choice_question   1789023
What is the best definition of a PRNG?
 
exact_answer none 63331
 
exact_answer none 58827
Correct!
 
exact_answer none 1484
 
exact_answer none 97650
 
Question 6
1 / 1 pts
0 multiple_choice_question   1789025
In an n-bit LFSR, what is the purpose of LF?
 
exact_answer none 9382
 
exact_answer none 2513
Correct!
 
exact_answer none 23540
 
exact_answer none 79235
 
Question 7
1 / 1 pts
0 multiple_choice_question   1789017
Which authentication factor is the weakest form of security?
Correct!
 
exact_answer none 89207
 
exact_answer none 38989
 
exact_answer none 14087
 
exact_answer none 55138
 
Question 8
1 / 1 pts
0 multiple_answers_question   1789020

For crypto rules D(), E(), which is correct ? (Ke/Kd are the encryption/decryption keys)

Correct!
 
exact_answer none 11531
 
exact_answer none 10731
 
exact_answer none 48350
 
exact_answer none 64061
 
Question 9
1 / 1 pts
0 multiple_choice_question   1789026
In an n-bit LFSR, what is the purpose of SR?
 
exact_answer none 4293
 
exact_answer none 97385
Correct!
 
exact_answer none 15703
 
exact_answer none 19418
 
Question 10
1 / 1 pts
0 multiple_choice_question   1789019
Which authentication factor is the hardest to obtain from an uncooperative hostage?
 
exact_answer none 31178
Correct!
 
exact_answer none 38866
 
exact_answer none 33749
 
exact_answer none 4832