How Does a Fingerprint Optical Scanner Work?

A fingerprint scanner system has two basic jobs -- it needs to get an image of your finger, and it needs to determine whether the pattern of ridges and valleys in this image matches the pattern of ridges and valleys in pre-scanned images.

Only specific characteristics, which are unique to every fingerprint, are filtered and saved as an encrypted biometric key or mathematical representation. No image of a fingerprint is ever saved, only a series of numbers (a binary code), which is used for verification. The algorithm cannot be reconverted to an image, so no one can duplicate your fingerprints.

Employees Privacy and Cleanliness Concerns?

It is important to note that Easy Clocking’s biometric time clocks do not actually collect and store fingerprints. Instead, it saves a mathematical representation of the employee’s biometric data. When the biometric time clock scans a hand or finger during a supervised enrollment process, only an encrypted mathematical representation of the fingerprint is stored. As a result, it’s virtually impossible to duplicate the original image from that mathematical representation. Additionally, if employees question cleanliness, this concern should not be dismissed. Instead, you should assure employees that the time clock’s finger zone is not a hot zone for germs. In fact, it will be touched far less frequently than restroom door handles, water cooler spigots, or chairs in the break room.

Top Advantages of Fingerprint Authentication

There are several ways an electronic time clock system can verify that somebody is who they say they are. Most systems are looking for one or more of the following:

  • What you have?
  • What you know?
  • Who you are?

To get past a "what you have" system, you need some sort of "token," such as an identity card with a magnetic strip. A "what you know" system requires you to enter a password or PIN number. A "who you are" system is actually looking for physical evidence that you are who you say you are -- a specific fingerprint pattern.

"Who you are" systems like Easy Clocking Fingerprint Time Clocks have a number of advantages over other systems. To name few:

  • Fingerprints are much harder to fake than identity cards.
  • You can't guess a fingerprint pattern like you can guess a password.
  • You can't misplace your fingerprint, like you can misplace an access card.
  • You can't forget your fingerprints like you can forget a password.