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How do you implement two-factor authentication in FuelPHP? - Code Stap
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How do you implement two-factor authentication in FuelPHP?

How do you implement two-factor authentication in FuelPHP?

Answer: To implement two-factor authentication (2FA) in FuelPHP, you can follow these steps:

1. Create a User Model: Ensure your user model has fields for storing the 2FA secret and verification status.

2. Generate a Secret: When a user opts for 2FA, generate a secret key using a library like Google Authenticator.

3. Display the QR Code: Use a QR code generator to allow users to scan the secret with an authentication app (e.g., Google Authenticator).

4. Verify the Code: During login, prompt users for their 2FA code after entering their username and password. Verify it using the same library that generated the secret.

5. Handling Backup Codes: Optionally, provide users with backup codes to access their accounts in case they lose access to their 2FA device.

6. Update Sessions: If verification is successful, update the user’s session to allow access.

7. Security Best Practices: Always ensure that your implementation is secure by using HTTPS, securing session management, and storing secrets securely.

Use libraries like `aliyah-php/2fa` or similar for handling 2FA logic to simplify the process.

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