Which two key and block sizes are valid for AES? (Choose two)

Which two key and block sizes are valid for AES? (Choose two)
A . 64-bit block size, 112-bit key length
B . 64-bit block size, 168-bit key length
C . 128-bit block size, 192-bit key length
D . 128-bit block size, 256-bit key length
E . 192-bit block size, 256-bit key length

View Answer

Answer: C, D

Explanation:

The AES encryption algorithm encrypts and decrypts data in blocks of 128 bits (block size). It can do this using 128-bit, 192-bit, or 256-bit keys