Comparing biometric categories
Biometrics can verify an individual’s identity by using a unique attribute or behavior. Although we may think of biometrics as one general topic, the science of biometrics is divided into two separate categories:
- Physiological biometrics: Represents attributes that can be measured
- Behavioral biometrics: Represents the way we do things
Although both categories provide a way to evaluate a unique attribute, each category is significantly different in the way they are assessed, as shown in the following diagram:
Figure 1.5 – Physiological versus behavioral biometrics
In this section, we will compare physiological and behavioral biometrics, so that you can get a better understanding of each type. We’ll also cover some of the common biometrics in each category. First, let’s outline physiological biometrics.
Measuring physiological attributes
Physiological biometrics are based...
