What is AAA?
(Identity)Authentication, Authorization, Accountability.
Identity: Someone who you are claiming to be. When you enter your username in the logon field, you are claiming your IDENTITY. There is no guarantee that the person who is claiming an identity; is the real person.
Authentication: The password that we enter in the logon field is an example of Authentication. like Identity; there is no guarantee that the person who is entering the password, is the real owner of the account. Except some biometric authentication methods are being used.
Authorization: Also called permissions. The level of the permission the user will gain after they are authenticated is called Authorization.
Accountability: The procedure and the facts that can hold the user accountable for what they do with the data network. Accountability becomes feasible via tools like logging and monitoring.
Types of authentication:
- Password Authentication
- Two-Factor authentication (2FA)
- Token Authentication
- Biometric Authentication
- Transaction Authentication
- Computer Recognition Authentication
- Single Sign-on (SSO)
- Password Picture