How do you manage user authentication and authorization (e.g. OAuth2, JWT)?

OAuth 2.0 & OpenID Connect:  OAuth 2.0 for secure authorization, allowing users to grant limited access to their resources without exposing credentials. OpenID Connect extends OAuth 2.0 to include authentication, providing a standardized method to verify user identities.

JWT Implementation: Upon successful authentication, we issue JWTs that encapsulate user identity and authorization claims. These tokens are signed using strong cryptographic algorithms (e.g., RS256) to ensure integrity and are validated on each request to protected resources.

Token Management: Access tokens are designed with short lifespans to minimize risk, and refresh tokens for session continuity. Token revocation mechanisms are in place to invalidate tokens when necessary, enhancing security.

Role-Based Access Control (RBAC): We enforce RBAC to ensure users have access only to the resources necessary for their roles, adhering to the principle of least privilege and zero trust.

Security Best Practices: Our implementation aligns with OWASP recommendations, including input validation, secure storage of credentials, and protection against common vulnerabilities such as token replay attacks.