CompTIA Security+ Question G-81

Which of the following cryptographic algorithms is MOST often used with IPSec?

A. Blowfish
B. Twofish
C. RC4
D. HMAC

Answer: D

Explanation:
The HMAC-MD5-96 (also known as HMAC-MD5) encryption technique is used by IPSec to make sure that a message has not been altered.