Answer:
The answer is "Option c"
Step-by-step explanation:
The HMAC is a method, which is used in hidden hash and measure the message authentication codes. It is a notification that can be checked by using HMAC. It also provides the authenticity and legitimacy by using HashAlgorithm key and a case, and other choices were wrong that is described as follows:
- The Option a and Option b, both options are connected, which is used in verification, that's why it is wrong.
- In option d, The CBC-MAC is used in message authentication, that's why it is wrong.