Is there a default size of HMAC key?

Hello, I’m a student studying database encryption.
Is there a default size of a key for generating HMAC of a encrypted database?
Thank you for taking the time to read my question.

Hello @Phant0mD0ve,

The key size used for the HMAC key is the same as the encryption key size, 256 bits. You may wish to review our design documentation as it covers may other details of the library of interest. Thanks!