What is user authentication and how it is important to get access control of the system? Explain in detail.
What is user authentication and how it is important to get access control of the system? Explain in detail.
1) Authentication is the process of identifying users that request access to a system, network, or device.
2) User authentication is a method that keeps unauthorized users from accessing sensitive information. Example, User A only has access to relevant information and cannot see the sensitive information of User B.
3) Access control often determines user identity according to credentials like username and password or other authentication technologies like biometrics and authentication apps.
4) Below are some types of user authentication used these days
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Password-based authentication: Passwords are the most common methods of authentication. Passwords can be in the form of a string of letters, numbers, or special characters. To protect yourself you need to create strong passwords that include a combination of all possible options.
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Multi-factor authentication: Multi-factor Authentication is an authentication method that requires two or more independent ways to identify a user. Examples include codes generated from the user’s smartphone, Captcha tests, fingerprints, voice biometrics or facial recognition.
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Certificate-based authentication technologies identify users, machines or devices by using digital certificates. A digital certificate is an electronic document based on the idea of a driver’s license or a passport
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Biometric authentication: It is a security process that relies on the unique biological characteristics of an individual like facial recognition, finger print scanner, eye scanner etc.
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