To secure .NET Core applications, implement authentication and authorization mechanisms. Authentication verifies user identity, while authorization determines access rights.
1. Cookie-based: Use ASP.NET Core Identity for storing user information and managing authentication via cookies.
2. Token-based: Utilize JSON Web Tokens (JWT) to authenticate users without server-side sessions.
3. OAuth 2.0/OpenID Connect: Integrate with external providers like Google or Facebook using these protocols.
4. Windows Authentication: Employ this mechanism in intranet scenarios where Active Directory is available.
5. Certificate Authentication: Authenticate clients based on X.509 certificates, suitable for mutual TLS scenarios.
For authorization:
1. Role-based: Grant access based on predefined roles assigned to users.
2. Claims-based: Evaluate claims within a user’s identity to determine permissions.
3. Policy-based: Define custom policies with specific requirements, evaluated by the Authorization Middleware.
