Multi-Factor Authentication (MFA) Generator Script

This is a Python script that provides a command-line interface for generating and verifying Time-Based One-Time Passwords (TOTPs) for Multi-Factor Authentication (MFA). The script uses the pyotp library for TOTP calculations.

Features

• Generate TOTP codes using different hash algorithms, code lengths, and time intervals.
• Verify TOTP codes and set a verification window for code validity.
• Save and load secret keys from JSON files for easier management.

Prerequisites

Before using the script, make sure you have Python installed. You can install the required pyotp library using the following command:

pip install pyotp

Usage

1. Generate TOTP Code

To generate a TOTP code, run:

python multi_factor_auth.py --generate --algorithm SHA1 --digits 6 --interval 30

2. Verify TOTP Code

To verify a TOTP code, run:

python multi_factor_auth.py --verify CODE_TO_VERIFY --algorithm SHA1 --digits 6 --interval 30 --window 1

Replace CODE_TO_VERIFY with the TOTP code you want to verify.

3. Save and Load Secret Keys

To save a secret key to a JSON file, run:

python multi_factor_auth.py --save secret.json

To load a secret key from a JSON file, run:

python multi_factor_auth.py --load

Options

• --generate: Generate a TOTP code.
• --verify: Verify a TOTP code.
• --algorithm: Choose hash algorithm (SHA1, SHA256, SHA512).
• --digits: Set number of digits in TOTP code (6 or 8).
• --interval: Set time interval for TOTP code generation.
• --window: Set verification window for TOTP codes.
• --save: Save secret key to a JSON file.
• --load: Load secret key from a JSON file.

Example

Generate a TOTP code:

python multi_factor_auth.py --generate --algorithm SHA256 --digits 8 --interval 60

Verify a TOTP code:

python multi_factor_auth.py --verify 123456 --algorithm SHA256 --digits 8 --interval 60 --window 2

Note

This script is provided for educational purposes. When using it for real-world applications, make sure to follow security best practices and ensure proper handling of secret keys.

Contributing

If you have any ideas, improvements, or bug fixes, feel free to open an issue or submit a pull request. We appreciate your contributions!