Biometric Access Control

Biometrics is a method of establishing a person’s identity based on chemical, behavioral, or physical attributes of that person, and is relevant in large-scale identity management across a wide range of applications. In addition, this technology can be implemented to regulate access among computer networks, financial transactions, or transportation systems. The main purpose of biometrics in these applications is to determine or verify someone’s identity in order to prevent unauthorized people from accessing protected resources. Unlike code- and password-based systems or access card systems, which rely on information that can be forgotten or items that can be lost, biometrics techniques provide access based on who people are rather than what they have in their possession.


Biometric access

A biometric reader or scanning device is used to obtain the necessary verification data from a person. For example, in fingerprint biometrics applications, an optical sensor is employed to produce an image of the ridge structure at a fingertip, and this image serves as the basis for further access control activity.

The sensor unit forms the key interface between a user and a biometric access control system, making it important to minimize the rate of reading failure. The quality and usefulness of the data obtained through sensors often depends on camera characteristics because the majority of biometric data is composed of images, with the exception of audio-based systems, such as voice recognition, and chemically-based systems, such as odor identification.

Benefits Of Biometrics For Access Control


More Accountability

Having knowledge of what your employees are doing while they are on the clock is always a good idea. Biometrics help to improve accountability, especially if you have employees working nights and weekends. With better, more accurate information about every entrance and exit, there is more proof backed by data which is easier to configure, analyze and report. V

Keeping an eye on entrances and exits is one thing, however, having even more information is very useful, especially when you want to be sure that your employees, staff, and everyone in the facility are made as safe as possible.

High Efficiency

Companies demand efficient security systems: the best of the best. When biometric security is implemented, it can allow your business to run much more smoothly. Biometric systems enhance security and increase efficiency in order to manage key functions like attendance tracking for payroll.

It is also helpful for employees since they don’t need to worry about carrying a card, key fob, etc.


Biometrics Used In Security Systems

Biometric security devices play a crucial role in verifying a person's identity by enforcing access control methods through their unique biological traits. In this lesson, we will cover optical, fingerprint, and voice recognition, which are used to identify and authenticate a person, as well as cover the pros and cons of using these devices.


Retina and Iris Recognition

Retina scanners use the blood vessels in the back of the eye for authentication. The blood vessel pattern in the back of the eye is unique to the individual. This method is very intrusive and is not widely accepted because it breaches a person's medical privacy. For example, possible discovery of disease in the eye or other medical conditions may alert the company and can cause employment issues.

The iris scanner, which measures an individual's iris pattern, is non-intrusive. Each person has a different color pattern in the iris, and therefore, the iris scanner is used to measure these characteristics. It is more popular within the security field.

Fingerprint Recognition

Fingerprint scanners are the least intrusive out of the group because they only measure the fingerprint. They measure the whorl, loop, and arch patterns of the finger, which are unique to everyone. Fingerprint scanners are also the easiest to implement and are cost effective. Fingerprint scanners do not disclose any medical information; therefore, they are widely used in the industry in regards to access control. They are so popular and effective that fingerprint scanners are now being used on mobile devices and even on cars.

Although it is uncomplicated and inexpensive to implement, there are high chances for replay attacks since this type of system allows for easy impersonation. For example, if you press your thumb against the back of a gummy bear, you will be able to see your thumb print. The same gummy bear with the lifted fingerprint can now be used to fool a fingerprint scanner and gain unauthorized access.


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