What Is Hardware Authentication?
By Kevin Caron
The term "hardware authentication" refers to a security system that uses a hardware device to grant access to users. Hardware authentication is used most commonly for computer systems and networks to protect sensitive data.
USB Security Keys
Universal Serial Bus (USB) security keys, also called security tokens, are small devices that plug into a computer's USB port for authentication. This adds an extra layer of security, as the user not only must know the system password, but also must be in possession of the security key.
Finger Swipes
Another common type of hardware authentication involves a device that reads a user's fingerprint. These devices generally consist of a pad connected to a computer's USB port via a cable. The user swipes his or her finger over the pad, which matches the user's fingerprint to an image stored within the system to grant access.
Optical Recognition
Optical recognition devices are similar to finger swipe devices in that they add a layer of security based on stored biometric data. These devices basically are cameras that connect to a computer and scan a user's retina; the image then is matched to a stored retinal image for authentication.
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Writer Bio
Kevin Caron has over a decade of experience in the publishing industry. He has written for newspapers and served in various editorial roles for a number of publishing companies. Caron holds a Bachelor of Arts in English from Keene State College in Keene, N.H.