PHP code example of krixon / multi-factor-auth

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

krixon / multi-factor-auth example snippets

use Krixon\MultiFactorAuth\MultiFactorAuth;

$mfa = MultiFactorAuth::default('Example Issuer');

$secret = $mfa->generateSecret();

$barcode = $mfa->generateTimeBasedBarcode($secret, '[email protected]');

<img src="<?= $barcode->dataUri() 

$verified = $mfa->verifyTimeBasedCode($code, $secret);

use Krixon\MultiFactorAuth\Codec\Base32Codec;
use Krixon\MultiFactorAuth\MultiFactorAuth;

$mfa = MultiFactorAuth::default('Test Issuer');

// Secrets are expected to be in base32 by default for compatibility with Google Authenticator and similar apps.
// It is possible to use any encoding (including none). See below for more information.
$secret = (new Base32Codec())->encode('12345678901234567890');

 // Retrieve the real counter from the DB or wherever it is stored.
$counter = 42;

// $codes is an array of 10 strings, each 6 digits long.
$codes = $mfa->generateBackupCodes($secret, $counter, 10, 6);

foreach ($codes as $code) {
    // Do something with the backup code.
    // Generally you would salt and hash the code and store it in a database. These codes would be checked
    // against the one entered by the user (in addition to checking the current time or event-based code).
    echo "$code\n";
}

$generator = new RandomBytesSecretGenerator();

// Generates a base32-encoded, 20 byte random secret.
$secret = $generator->generateSecret();

// Generates a base32-encoded, 30 byte random secret.
$secret = $generator->generateSecret(30);

// Generates a raw binary, 20 byte random secret.
$generator = new RandomBytesSecretGenerator(new PassThroughCodec());
$secret    = $generator->generateSecret(30);

// Generates a base32-encoded, 20 byte random secret.
$mfa    = MultiFactorAuth::default('Test Issuer');
$secret = $mfa->generateSecret();