The algorithm ____ is a block cipher that operates on 64-bit blocks and can have a key length from 32 to 448 bits.
A) RSA
B) AES
C) Blowfish
D) 3DES

Question

Quizplus · Accepted Answer

Blowfish is the only option listed that operates on 64-bit blocks and allows for a key length that varies from 32 to 448 bits. RSA operates on variable-length blocks and is typically used for asymmetric encryption. AES operates on fixed 128-bit blocks and has a key length of either 128, 192, or 256 bits. 3DES operates on 64-bit blocks but has a fixed key length of 168 bits.

The Algorithm ____ Is a Block Cipher That Operates on 64-Bit