Traditional identification methods include identification items (such as keys, certificates, electronic cards, etc.) and identification numbers (such as user name and password). However, due to the main use of external objects, once the identification is stolen or forgotten, it is easy to be impersonated or replaced by others.
Biometric identification technology mainly refers to the technology of identity authentication through human biometrics. Human biometrics mainly include fingerprint, face, iris, retina, palmprint and so on. Human biometrics usually have the characteristics of uniqueness, measurable or automatic identification and verification, heredity or life-long invariability, Therefore, biometric identification technology has more advantages than traditional authentication technology. With biological "key", you don't have to carry a bunch of keys, and you don't have to bother to remember or change the password. And system administrators do not have to forget the password and helpless. Biometric technology products are realized with the help of modern computer technology, it is easy to cooperate with the integration of computer and security, monitoring and management systems to achieve automatic management.
Compared with traditional identification, biometric identification technology has the following characteristics:
Portability: biological characteristics are inherent characteristics of the human body, and the human body is the only binding, with portability.
Security: human characteristics are the best proof of personal identity to meet higher security needs.
Uniqueness: everyone has different biological characteristics.