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.
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