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Authentication vs Authorization

Authentication vs Authorization

Authentication and Authorization are distinct yet interrelated components of Identity and Access Management, each serving a specific purpose in securing systems.


1. Authentication: Verifying Identity

Authentication

Authentication: Authentication verifies who a user is by confirming their identity using credentials like usernames, passwords, or biometrics. It ensures only legitimate users gain access to the system.


2. Authorization: Defining Access

Authorization

Authorization: Authorization determines what actions or resources a user is allowed to access. It enforces permissions based on roles or policies, ensuring users can only access authorized resources.


3. Key Differences and Example

Authentication vs Authorization Example

Key Differences: Authentication precedes authorization. For example, logging in with a username and password is authentication, while accessing specific data or performing actions is authorization.