what is #difference between #authentication and #authorization?

Authentication and authorization are two important concepts in computer security, and while they are related, they refer to different things.

Authentication refers to the process of verifying the identity of a user or system. It involves confirming that the user or system is who they claim to be. This is usually done by providing a username and password or other credentials, such as a security token or biometric authentication. The goal of authentication is to ensure that only authorized users can access a system or resource.

Authorization, on the other hand, refers to the process of determining what actions a user or system is allowed to perform. Once a user has been authenticated, the system checks their credentials to determine what level of access they have to resources or data. Authorization can be very granular, allowing users to perform specific actions but not others, or it can be more general, allowing access to an entire system or network.

In summary, authentication is the process of verifying the identity of a user or system, while authorization is the process of determining what actions that user or system is allowed to perform. Both are important for ensuring the security and integrity of computer systems and data.