Question

AES uses a ____________ bit block size and a key size of __________ bits.

(A) 128; 128 or 256

(B) 64; 128 or 192

(C) 256; 128, 192, or 256

(D) 128; 128, 192, or 256​

Answer 1

Answer:

Option D is correct

Explanation:

AES is a variant of rijndael ,with a fixed blick size of 128 bits , a key size of 128 ,193 or 256 bits

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