README

This is a php library ，Google Authenticator One-time Password Algorithm in PHP

1. 相对于验证码，安全很多；几乎是不会存在破解的方法
2. 验证码有时候无法识别，不方便操作
3. 一机一码，不会存在账号盗用的问题
4. 动态验证，每30秒生产一个验证码，安全更加保障

see: https://www.phpgangsta.de/2-faktor-authentifizierung-mit-dem-google-authenticator

Installation

This library is installable via composer composer require nsp-team/google-authenticator

Usage

require_once "vendor/autoload.php";

use NspTeam\Authenticator\GoogleAuthenticator;

$ga = new GoogleAuthenticator();

$secret = $ga->createSecret();
echo "Secret is: ".$secret."\n\n";

$qrCodeUrl = $ga->getQRCodeGoogleUrl('Blog', $secret);
echo "Google Charts URL for the QR-Code: ".$qrCodeUrl."\n\n";

$oneCode = $ga->getCode($secret);
echo "Checking Code '$oneCode' and Secret '$secret':\n";

$checkResult = $ga->verifyCode($secret, $oneCode, 2);    // 2 = 2*30sec clock tolerance
if ($checkResult) {
    echo 'OK';
} else {
    echo 'FAILED';
}