AES Quiz

AES uses a key size of __________ bits.

• 128, 192 or 256

• 64, 128 or 192

• 192 or 256

• 64 or 256

Like DES, AES also uses Feistel Structure.

• True

• False

How many rounds does the AES-192 perform?

• 10

• 12

• 14

• 16

Amongst which of the following is / are true with reference to the rounds in AES –

• Byte Substitution

• Shift Row

• Mix Column and Key Addition

• All mentioned

The process of decryption of an AES ciphertext is similar to the encryption process in the ______.

• Reverse order

• Next order

• Both A and B

AES uses a blocking size of?

• 128 bits

• 192 bits

• 256 bits

• 512 bits

The acronym AES stands for?

• American Encryption Standard

• American Encryption System

• Advanced Encryption Standard

• Advanced Encryption System

Which algorithm among - MARS, Blowfish, RC6 and Rijndael - was chosen as the AES algorithm?

• MARS

• Blowfish

• RC6

• Rijndael

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

• Words

• States

• Transitions

• Permutations