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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\authclient\signature;
use yii\base\NotSupportedException;
/**
* HmacSha1 represents 'HMAC-SHA1' signature method.
*
* Note: This class require PHP "Hash" extension({@link http://php.net/manual/en/book.hash.php}).
*
* @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0
*/
class HmacSha1 extends BaseMethod
{
/**
* @inheritdoc
*/
public function init()
{
if (!function_exists('hash_hmac')) {
throw new NotSupportedException('PHP "Hash" extension is required.');
}
}
/**
* @inheritdoc
*/
public function getName()
{
return 'HMAC-SHA1';
}
/**
* @inheritdoc
*/
public function generateSignature($baseString, $key)
{
return base64_encode(hash_hmac('sha1', $baseString, $key, true));
}
}