How Hmac works?

Question

Algorithms

Please explain if I understand correctly?
Before sending, the sender calculates the hash from this data, then this hash is encrypted and this tag with data is sent to the recipient. The recipient in turn decrypts the tag with the key, gets the hash, then calculates the hash from the received data and compares these hashes with each other if these two hashes match, then everything is OK,
Did I get it right??
Thanks in advance for your support

Answer 1

https://ru.wikipedia.org/wiki/HMAC