Файл: concrete5.7.5.6/concrete/vendor/zendframework/zend-crypt/src/Key/Derivation/SaltedS2k.php
Строк: 54
<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace ZendCryptKeyDerivation;
/**
* Salted S2K key generation (OpenPGP document, RFC 2440)
*/
class SaltedS2k
{
protected static $supportedMhashAlgos = array (
'md2' => MHASH_MD2,
'md4' => MHASH_MD4,
'md5' => MHASH_MD5,
'sha1' => MHASH_SHA1,
'sha224' => MHASH_SHA224,
'sha256' => MHASH_SHA256,
'sha384' => MHASH_SHA384,
'sha512' => MHASH_SHA512,
'ripemd128' => MHASH_RIPEMD128,
'ripemd256' => MHASH_RIPEMD256,
'ripemd320' => MHASH_RIPEMD320,
'haval128,3' => MHASH_HAVAL128,
'haval160,3' => MHASH_HAVAL160,
'haval192,3' => MHASH_HAVAL192,
'haval224,3' => MHASH_HAVAL224,
'haval256,3' => MHASH_HAVAL256,
'tiger128,3' => MHASH_TIGER128,
'riger160,3' => MHASH_TIGER160,
'whirpool' => MHASH_WHIRLPOOL,
'snefru256' => MHASH_SNEFRU256,
'gost' => MHASH_GOST,
'crc32' => MHASH_CRC32,
'crc32b' => MHASH_CRC32B
);
/**
* Generate the new key
*
* @param string $hash The hash algorithm to be used by HMAC
* @param string $password The source password/key
* @param int $bytes The output size in bytes
* @param string $salt The salt of the algorithm
* @throws ExceptionInvalidArgumentException
* @return string
*/
public static function calc($hash, $password, $salt, $bytes)
{
if (!in_array($hash, array_keys(static::$supportedMhashAlgos))) {
throw new ExceptionInvalidArgumentException("The hash algorihtm $hash is not supported by " . __CLASS__);
}
if (strlen($salt)<8) {
throw new ExceptionInvalidArgumentException('The salt size must be at least of 8 bytes');
}
return mhash_keygen_s2k(static::$supportedMhashAlgos[$hash], $password, $salt, $bytes);
}
}