Example Usage
A business that suffers from attackers that place fraudulent Internet orders may insist that all its customers deposit a secret symmetric key with them. Along with an order, a customer must supply the order's HMAC digest, computed using the customer's key. The business, knowing the customer's key, can then verify that the order originated from the stated customer and has not been tampered with.
Read more about this topic: Hash-based Message Authentication Code
Famous quotes containing the word usage:
“I am using it [the word ‘perceive’] here in such a way that to say of an object that it is perceived does not entail saying that it exists in any sense at all. And this is a perfectly correct and familiar usage of the word.”
—A.J. (Alfred Jules)
“Pythagoras, Locke, Socrates—but pages
Might be filled up, as vainly as before,
With the sad usage of all sorts of sages,
Who in his life-time, each was deemed a bore!
The loftiest minds outrun their tardy ages.”
—George Gordon Noel Byron (1788–1824)