What type of message authentication code uses hashing to authenticate the sender by using both a hash function and a secret cryptographic key?
A)SHA-384
B)HMAC
C)RIPEMD
D)MD5

Question

Quizplus · Accepted Answer

The type of message authentication code that uses both a hash function and a secret cryptographic key for sender authentication is HMAC (Hash-based Message Authentication Code). HMAC is considered more secure than using just a hash function for message authentication. SHA-384, RIPEMD, and MD5 are all hash functions but they do not use a secret cryptographic key for authentication, making them less secure than HMAC.

What Type of Message Authentication Code Uses Hashing to Authenticate