Python TOTP 2FA Tool

This is a simple Python tool for generating and verifying TOTP-based two-factor authentication (2FA) codes using the pyotp library.

It allows you to:

• Generate a new shared secret (16 characters)
• Display the current 6-digit TOTP code
• Test a user-entered 2FA code against the generated or provided shared secret

Features

Random shared secret generation
TOTP code generation (6-digit PIN)
Verification of user input against current TOTP code

Requirements

• Python 3.6+
• pyotp package

Install dependencies with:

pip install -r requirements.txt

Usage

Run the script:

python your_script_name.py

You will be prompted to either:

1. Generate a new shared secret (which will immediately display a valid TOTP code)
2. Test an existing shared secret by entering it manually and verifying a TOTP code

Example

Would you like to generate a new shared secret or test an existing one? (1 = generate, 2 = test): 1
Randomly generated shared secret (16 characters): Xk8T2...
Your current TOTP code is: 123456

Notes

• TOTP codes change every 30 seconds.
• For production use, it is recommended to store secrets securely and optionally display a QR code to scan with an authenticator app (e.g. Google Authenticator, Authy).

License

MIT – feel free to use and modify.