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What biometric characteristics can be used as the basis for identity authentication, and what is the process of this authentication?

The technology is not based on traditional markers or marker knowledge, but on a technology that relies on human body biometrics for identity authentication, that is, the inherent physiological characteristics or behavioral characteristics of the human body are collected and processed through computers. , technology for personal identification. The biometric identification method is based on what the human body itself possesses, which is an individual characteristic. In fact, any physical characteristic can be used for identification. Biological characteristics are divided into two categories: based on physical characteristics (physiological characteristics) and based on behavioral characteristics. Physiological characteristics are innate and mostly congenital; behavioral characteristics are the result of habits and are mostly acquired. Biometric identification technology is currently the most convenient and secure identification system. There is no need to remember ID numbers or passwords, and there is no need to carry things like smart cards with you. The "key" is yourself, and nothing can be safer and more convenient than this. At present, some biometric characteristics used for identity identification mainly include voiceprint, fingerprint, face print, iris, handwriting, gait, infrared temperature spectrum, etc. There are also some biometric characteristics that can be used for identity identification, including ear shape, DNA , retina, hand prints, palm prints, body contours, footprints, etc. The development of biometric identification technology has led to the creation of a new industry: "Beijing". The annual output value of this field has reached hundreds of millions of US dollars and is showing a rapid growth trend. Gu 11 (for tcs) once made this assertion: "Little Object feature recognition technology, which uses human physiological characteristics (such as fingerprints, etc.) to identify individuals, will become an important innovation in the IT industry in the next few years. "As early as 2001, the United States had signed the Electronic Signature Act. The bill. The signing prompted major high-tech companies in the UK to step up the development of technologies to ensure the security of electronic signatures, which mainly include encrypted digital devices to verify a person's identity and fingerprint or iris recognition facilities attached to computers, especially after "9.11". Since then, the importance of biometric technology has been highly valued by governments around the world. The United States has issued three consecutive bills emphasizing the application of biometric identification technology in fields such as border, law enforcement, and civil aviation, and has legislated to require China to use this technology in passports in 2005. Technology; the United Nations' 1CA () issued a plan for the use of physical evidence authentication technology in the field of aviation to 188 member states, proposing to add biometrics (including fingerprint recognition, iris recognition) to personal passports. , face recognition, etc.) to confirm personal identity at the border of each country. Biometric identification has become a frontier and popular research direction at home and abroad. It utilizes the latest research results in multiple disciplines and has achieved a large number of excellent results. With the development of computer technology and people's increasing demand for social security and personal information security, a huge market has been formed globally. The scale of biometric-based identity authentication in the United States has reached billions. US dollars, some other countries and regions (such as the European Union, Australia, Japan, South Korea, etc.) adopt legal provisions to use biometric technology. In our country, biometric authentication technology is an emerging industry. In February 2007, the State Council of my country released the The Outline of the National Long-term Science and Technology Development Plan also lists geographical features as priority themes in the next 15 key areas of scientific and technological work. And the deployment of “intelligent sensing technology” at the forefront of the information field CFL focuses on research in this field. With the convening of large-scale international conferences such as the 2008 Olympic Games and the 20N Annual Ceremony Expo, the Chinese market, with a population of 1.3 billion, is destined to be a market with potential and high growth potential, and it will also become a global biomass market in the future. Feature technology provides broad development space. The Institute of Automation and Chemistry of the Chinese Academy of Sciences established biometric authentication and testing, 1I'B, and also contributed to the establishment of the Small Country 4: Biometric Authentication Technology Industry Joint Service.