TOTP Secret Key Generator

import pyotp

# Store this secret securely for each user
secret = "JBSWY3DPEHPK3PXP"

# Generate current TOTP code
totp = pyotp.TOTP(secret)
print(totp.now())  # e.g., "492039"

# Verify a code from user
is_valid = totp.verify("492039")

const { authenticator } = require('otplib');

const secret = "JBSWY3DPEHPK3PXP";

// Generate current code
const token = authenticator.generate(secret);

// Verify user's code
const isValid = authenticator.verify({ token: userCode, secret });

use Sonata\GoogleAuthenticator\GoogleAuthenticator;

$ga = new GoogleAuthenticator();
$secret = "JBSWY3DPEHPK3PXP";

// Verify user's code
$isValid = $ga->checkCode($secret, $userCode);