Question

Because of the large key size, brute-force attacks on AES are what?

1) Infeasible
2) Efficient
3) Ineffective
4) Impossible

Answer 1

Because of the large key size, brute-force attacks on AES are infeasible.

Step-by-step explanation:

The correct answer is 1) Infeasible.

Because of the large key size, brute-force attacks on AES are impractical and time-consuming. AES uses a 128-bit, 192-bit, or 256-bit key, which makes it computationally infeasible to try all possible key combinations.

For example, a brute-force attack on AES-128 would require trying approximately 3.4 x 10^38 different keys. This number is so large that it exceeds the computing power and time available to any attacker, making the attack impractical.