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AES

Authored by D.MAGESH CSE

Computers

University

Used 4+ times

AES
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

AES uses a ____________ bit block size and a key size of __________ bits.

a) 128; 128 or 256

b) 64; 128 or 192

c) 256; 128, 192, or 256

d) 128; 128, 192, or 256

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Like DES, AES also uses Feistel Structure.

a) True

b) False

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many rounds does the AES-192 perform?

a) 10

b) 12

c) 14

d) 16

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many rounds does the AES-256 perform?

a) 10

b) 12

c) 14

d) 16

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the expanded key size of AES-192?

a) 44 words

b) 60 words

c) 52 words

d) 36 words

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The 4×4 byte matrices in the AES algorithm are called

a) States

b) Words

c) Transitions

d) Permutations

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In AES the 4×4 bytes matrix key is transformed into a keys of size __________

a) 32 words

b) 64 words

c) 54 words

d) 44 words

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