Hash-based message authentication code (HMAC) provides the server and the client each with a private key that is known only to that specific server and that specific client. The client creates a unique HMAC, or hash, per request to the server by hashing the request data with the private keys and sending it as part of a request. What makes HMAC more secure than Message Authentication Code (MAC) is that the key and the message are hashed in separate steps.
Brownsville, Texas. Brownsville is the county seat of Cameron County, Texas. It is the sixteenth most populous city in the state of Texas, with a population at the 2010 census of 175,023 and an estimated population in 2014 of 183,046.
Kingsville is a city in Texas. It is the county seat of Kleberg County. The population was 26,213 at the time of the 2010 census. Kingsville is the principal city of the Kingsville Micropolitan Statistical Area, which is part of the larger Corpus Christi-Kingsville Combined Statistical Area. The community was established in 1904 after the St. Louis, Brownsville and Mexico Railway completed a line through the town.