What is the function of fingerprints?

You can use fingerprints to identify yourself, because fingerprints meet the following two conditions:

Fingerprints are different. No two fingerprints are the same. Although identical twins are highly similar in pattern, their details are not exactly the same, but there are some differences. In addition, a person's fingerprints of different fingers are also different.

Secondly, in principle, a person's fingerprint is lifelong. After the child grows up, the fingerprint only becomes bigger and thicker, and the characteristics such as the shape and quantity of the lines remain unchanged.

Extended data:

Advantages:

1. Fingerprints are different features of human body, and their complexity is enough to provide sufficient features for authentication;

2. If you want to increase the reliability, you only need to register more fingerprints and identify more fingers, up to ten, each fingerprint is different;

3. The speed of scanning fingerprints is very fast and it is very convenient to use;

4. When reading fingerprints, users must contact their fingers with the fingerprint collection head and directly with the fingerprint collection head.

References:

Baidu encyclopedia-fingerprint