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MCQ

Q.

The _______ criterion states that it must be extremely difficult or impossible to create the message if the message digest is given.

A

one-wayness

B

weak-collision-resistance

C

strong-collision-resistance

D

none of the above

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MCQ

1.

DES is a(n) ________ method adopted by the U.S. government.

A

symmetric-key

B

asymmetric-key

C

either (a) or (b)

D

neither (a) nor (b)

Discussion

MCQ

2.

. A modern cipher is usually a complex _____cipher made of a combination of different simple ciphers.

A

round

B

circle

C

square

D

none of the above

Discussion

MCQ

3.

ECB and CBC are ________ ciphers

A

block

B

stream

C

field

D

none of the above

Discussion

MCQ

4.

In the ______ mode, IPSec protects information delivered from the transport layer to the network layer.

A

transport

B

tunnel

C

either (a) or (b)

D

neither (a) nor (b)

Discussion

MCQ

5.

. Challenge-response authentication can be done using ________

A

symmetric-key ciphers

B

asymmetric-key ciphers

C

keyed-hash functions

D

all of the above

Discussion

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