Flask Auth & Security
Protecting user data and restricting access to critical endpoints.
Session-based Auth (Flask-Login)
- The UserMixin: Simplified implementation of login/logout states.
- decorators:
@login_requiredto protect views.
Token-based Auth (JWT)
Use Flask-JWT-Extended for stateless APIs.
- Claims: Storing user identity and roles in the token.
- Refresh Tokens: Managing long-term sessions securely.
General Security
- Hashing: Use
pbkdf2:sha256orbcryptfor storage. - Headers: Implement
HSTS,Content-Security-Policy, and common security headers (using Flask-Talisman). - Secrets: Never commit
SECRET_KEYto version control.
Best Practices
- Rate Limiting: Protect authentication endpoints from brute-force attacks.
- Principle of Least Privilege: Use Role-Based Access Control (RBAC).