README

一个类集合，提供类似于Yubico OTP (Yubikey)、Oath (TOTP、HOTP、GoogleAuthenticator) 的服务器端二次因素认证。

有关Oath的更多信息，请访问 https://openauthentication.org/。

关于TOTP（基于时间的单次密码算法）的更多信息，可以在 Wikipedia 找到。

关于HOTP（基于HMAC的单次密码算法）的更多信息，可以在 Wikipedia 找到。

有关Yubico OTP认证机制的更多信息，请阅读“什么是YubiKey OTP？”文章，地址为 https://developers.yubico.com/OTP/。

安装

{
   	"require": {
        "chroma-x/oath-server-suite": "~4.0"
    }
}

使用

自动加载和命名空间

require_once('path/to/vendor/autoload.php');

Yubico OTP (YubiCloud)

要使用Yubico OTP，您需要YubiCloud访问权限。您可以从 https://upgrade.yubico.com/getapikey/ 获取免费的API凭证。

验证Yubico单次密码

use ChromaX\CommonException\NetworkException\Base\NetworkException;

$otp = $_POST['otp'];
$userPublicId = 'fetchedFromDatabaseOrSimilar';

$validator = new OathServerSuite\Validation\YubicoOtp\Validator('yubiCloudClientId', 'yubiCloudSecretKey');
try {
	$validator->validate($otp, $userPublicId);
	if ($validator->isValid()) {
		// Validation was successful
	} else {
		// Validation failed
	}
} catch (NetworkException $exception) {
	// Accessing the YubiCloud webservice failed.
}

Oath – Google Authenticator风格

共享密钥名称和秘密

为了允许认证，客户端和服务器必须共享一个秘密。通常服务器会将秘密切成块，并将其与密钥名称和认证机制一起以QR码的形式显示。

Google Authenticator 和一些其他应用程序和硬件项目 – 如 Yubikey – 不遵循标准，它们期望秘密不是十六进制，而是 Base32 编码的数据。

TOTP（基于时间的单次密码算法）

use ChromaX\OathServerSuite\SecretSharing\SharedSecretQrCodeProvider\SharedSecretQrCodeProvider;
use ChromaX\OathServerSuite\SecretSharing\SharedSecretUrlEncoder\TotpBase32SharedSecretUrlEncoder;
use ChromaX\QrCodeSuite\QrEncode\QrEncoder;

// Initialize Oath URL encoder for TOTP (Time-based One-time Password Algorithm)
$contentEncoder = new TotpBase32SharedSecretUrlEncoder();

// Setting the key name
$keyName = 'My Username';

// Setting the issuer name
$issuerName = 'Awesome Application';

// Setting a secret
// Attention: This is just an example value
// Use a random value of a proper length stored with your user credentials
$sharedSecret = openssl_random_pseudo_bytes(30);

// Getting the shared secret URL for usage wihtout QR code provision
$sharedSecretUrl = $contentEncoder->encode($keyName, $sharedSecret);

// Start QR code provision
// Initialize the QR code provider with Oath URL encoder for TOTP
$sharedSecretQrProvider = new SharedSecretQrCodeProvider(new TotpBase32SharedSecretUrlEncoder(), $keyName, $sharedSecret, $issuerName);

// Configure the QR code renderer for your needs
$sharedSecretQrProvider->getQrEncoder()
	->setLevel(QrEncoder::QR_CODE_LEVEL_LOW)
	->setTempDir('/path/to/a/writable/temp-dir');

// Persist the QR code PNG to the filesystem
$sharedSecretQrProvider->provideQrCode('/path/to/the/qrcode.png');

HOTP（基于HMAC的单次密码算法）

use ChromaX\OathServerSuite\SecretSharing\SharedSecretQrCodeProvider\SharedSecretQrCodeProvider;
use ChromaX\OathServerSuite\SecretSharing\SharedSecretUrlEncoder\HotpBase32SharedSecretUrlEncoder;
use ChromaX\QrCodeSuite\QrEncode\QrEncoder;

// Initialize Oath URL encoder for HOTP (HMAC-based One-time Password Algorithm)
$contentEncoder = new HotpBase32SharedSecretUrlEncoder();

// Setting the key name
$keyName = 'My Username';

// Setting the issuer name
$issuerName = 'Awesome Application';

// Setting a secret
// Attention: This is just an example value
// Use a random value of a proper length stored with your user credentials
$sharedSecret = openssl_random_pseudo_bytes(30);

// Getting the shared secret URL for usage wihtout QR code provision
$sharedSecretUrl = $contentEncoder->encode($keyName, $sharedSecret);

// Start QR code provision
// Initialize the QR code provider with Oath URL encoder for HOTP
$sharedSecretQrProvider = new SharedSecretQrCodeProvider(new HotpBase32SharedSecretUrlEncoder(), $keyName, $sharedSecret, $issuerName);

// Configure the QR code renderer for your needs
$sharedSecretQrProvider->getQrEncoder()
	->setLevel(QrEncoder::QR_CODE_LEVEL_LOW)
	->setTempDir('/path/to/a/writable/temp-dir');

// Persist the QR code PNG to the filesystem
$sharedSecretQrProvider->provideQrCode('/path/to/the/qrcode.png');

验证Oath单次密码

TOTP（基于时间的单次密码算法）

$totp = $_POST['totp'];
$sharedSecret = 'fetchedFromDatabaseOrSimilar';

$validator = new OathServerSuite\Validation\Oath\TotpValidator();
$validator->validate($totp, $sharedSecret);
if ($validator->isValid()) {
	// Validation was successful
} else {
	// Validation failed
}

HOTP（基于HMAC的单次密码算法）

$hotp = $_POST['hotp'];
$sharedSecret = 'fetchedFromDatabaseOrSimilar';
$counter = (int)'fetchedFromDatabaseOrSimilar';

$validator = new OathServerSuite\Validation\Oath\HotpValidator();
$validator->validate($hotp, $sharedSecret, $counter);
if ($validator->isValid()) {
	// Validation was successful
} else {
	// Validation failed
}

Oath – 遵循标准

共享密钥名称和秘密

TOTP（基于时间的单次密码算法）

use ChromaX\OathServerSuite\SecretSharing\SharedSecretQrCodeProvider\SharedSecretQrCodeProvider;
use ChromaX\OathServerSuite\SecretSharing\SharedSecretUrlEncoder\TotpSharedSecretUrlEncoder;
use ChromaX\QrCodeSuite\QrEncode\QrEncoder;

// Initialize Oath URL encoder for TOTP (Time-based One-time Password Algorithm)
$contentEncoder = new TotpSharedSecretUrlEncoder();

// Setting the key name
$keyName = 'My Username';

// Setting the issuer name
$issuerName = 'Awesome Application';

// Setting a secret
// Attention: This is just an example value
// Use a random value of a proper length stored with your user credentials
$sharedSecret = openssl_random_pseudo_bytes(30);

// Getting the shared secret URL for usage wihtout QR code provision
$sharedSecretUrl = $contentEncoder->encode($keyName, $sharedSecret);

// Start QR code provision
// Initialize the QR code provider with Oath URL encoder for TOTP
$sharedSecretQrProvider = new SharedSecretQrCodeProvider(new TotpSharedSecretUrlEncoder(), $keyName, $sharedSecret, $issuerName);

// Configure the QR code renderer for your needs
$sharedSecretQrProvider->getQrEncoder()
	->setLevel(QrEncoder::QR_CODE_LEVEL_LOW)
	->setTempDir('/path/to/a/writable/temp-dir');

// Persist the QR code PNG to the filesystem
$sharedSecretQrProvider->provideQrCode('/path/to/the/qrcode.png');

HOTP（基于HMAC的单次密码算法）

use ChromaX\OathServerSuite\SecretSharing\SharedSecretQrCodeProvider\SharedSecretQrCodeProvider;
use ChromaX\OathServerSuite\SecretSharing\SharedSecretUrlEncoder\HotpSharedSecretUrlEncoder;
use ChromaX\QrCodeSuite\QrEncode\QrEncoder;

// Initialize Oath URL encoder for HOTP (HMAC-based One-time Password Algorithm)
$contentEncoder = new HotpSharedSecretUrlEncoder();

// Setting the key name
$keyName = 'My Username';

// Setting the issuer name
$issuerName = 'Awesome Application';

// Setting a secret
// Attention: This is just an example value
// Use a random value of a proper length stored with your user credentials
$sharedSecret = openssl_random_pseudo_bytes(30);

// Getting the shared secret URL for usage wihtout QR code provision
$sharedSecretUrl = $contentEncoder->encode($keyName, $sharedSecret);

// Start QR code provision
// Initialize the QR code provider with Oath URL encoder for HOTP
$sharedSecretQrProvider = new SharedSecretQrCodeProvider(new HotpSharedSecretUrlEncoder(), $keyName, $sharedSecret, $issuerName);

// Configure the QR code renderer for your needs
$sharedSecretQrProvider->getQrEncoder()
	->setLevel(QrEncoder::QR_CODE_LEVEL_LOW)
	->setTempDir('/path/to/a/writable/temp-dir');

// Persist the QR code PNG to the filesystem
$sharedSecretQrProvider->provideQrCode('/path/to/the/qrcode.png');

验证Oath单次密码

TOTP（基于时间的单次密码算法）

$totp = $_POST['totp'];
$sharedSecret = 'fetchedFromDatabaseOrSimilar';

$validator = new OathServerSuite\Validation\Oath\TotpValidator();
$validator->validate($totp, $sharedSecret);
if ($validator->isValid()) {
	// Validation was successful
} else {
	// Validation failed
}

HOTP（基于HMAC的单次密码算法）

$hotp = $_POST['hotp'];
$sharedSecret = 'fetchedFromDatabaseOrSimilar';
$counter = (int)'fetchedFromDatabaseOrSimilar';

$validator = new OathServerSuite\Validation\Oath\HotpValidator();
$validator->validate($hotp, $sharedSecret, $counter);
if ($validator->isValid()) {
	// Validation was successful
} else {
	// Validation failed
}

异常处理

PHP Oath Server Suite提供不同类型的异常 – 一些由PHP Common Exceptions项目提供 – 以正确处理。
您可以在 GitHub 上找到有关PHP Common Exceptions的更多信息。

贡献

对我们的项目做出贡献总是非常受欢迎。
但是：请遵循在 CONTRIBUTING.md 文档中记录的贡献指南。

许可

PHP Oath Server Suite受MIT许可证的约束。