Virtual Labs

How many bits are used in a standard AES key?

a: 64 bits Explanation

Explanation

b: 128 bits Explanation

Explanation

c: 192 bits Explanation

Explanation

d: 256 bits Explanation

Explanation

In AES key expansion, what is the 'S-box' used for?

a: It is used to perform the initial permutation. Explanation

Explanation

b: It is used to expand the key size. Explanation

Explanation

c: It is used for substitution in the key schedule. Explanation

Explanation

d: It is used to reduce the key size. Explanation

Explanation

Experiment 4 - AES Key Generation