authentication-authorization-patterns

OAuth 2.0 and OpenID Connect authentication in .NET involves configuring OpenIddict to handle token issuance, defining client and server roles, and selecting the appropriate flow—authorization code, client credentials, or resource owner password—based on your application architecture.

Authentication verifies user identity through credentials or tokens; authorization grants access permissions based on roles and claims. Implement both by configuring identity verification with OAuth 2.0, then enforce role-based access control (RBAC) and claims-based policies on protected endpoints.

Secure JWT tokens by generating them with OpenIddict, storing refresh tokens securely server-side, validating token signatures and expiration on each request, and implementing refresh token rotation to issue new access tokens without re-authenticating.

Yes. ABP Framework and OpenIddict support MFA through additional verification steps during authentication and SSO by issuing tokens valid across multiple applications, allowing centralized identity management and session sharing.

Define roles and claims during token issuance in OpenIddict, then apply authorization policies on .NET API endpoints using attributes or middleware to check user roles and claims before granting access to protected resources.

Yes. The Skill focuses explicitly on .NET healthcare applications, covering secure token handling, encrypted storage, claims management, and API endpoint protection—patterns designed to meet authentication and authorization compliance standards.