Advanced Encryption Standard uses the: a. Two fish cipher b. Reykjavík cipher c. Rijndael cipher d. Keccak cipher The disadvantage of electronic codebook is: a. It is a manual encryption algorithm not...

Advanced Encryption Standard uses the:

a. Two fish cipher

b. Reykjavík cipher

c. Rijndael cipher

d. Keccak cipher

The disadvantage of electronic codebook is:

a. It is a manual encryption algorithm not suited for use in computers

b. It is a patented encryption algorithm

c. Each identical plaintext block encrypts into an identical cipher text block

d. It uses a 56-bit encryption key that is considered too short