CompTIA Security+ Question C-35

Which of the following should be used when a business needs a block cipher with minimal key size for internal encryption?

A. AES
B. Blowfish
C. RC5
D. 3DES

Answer: B

Explanation:
Blowfish is an encryption system invented by a team led by Bruce Schneier that performs a 64-bit block cipher at very fast speeds. It is a symmetric block cipher that can use variable-length keys (from 32 bits to 448 bits).