Файл: concrete5.7.5.6/concrete/vendor/zendframework/zend-crypt/src/PublicKey/Rsa/PrivateKey.php
Строк: 162
<?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 ZendCryptPublicKeyRsa;
/**
* RSA private key
*/
class PrivateKey extends AbstractKey
{
/**
* Public key
*
* @var PublicKey
*/
protected $publicKey = null;
/**
* Create private key instance from PEM formatted key file
*
* @param string $pemFile
* @param string|null $passPhrase
* @return PrivateKey
* @throws ExceptionInvalidArgumentException
*/
public static function fromFile($pemFile, $passPhrase = null)
{
if (!is_readable($pemFile)) {
throw new ExceptionInvalidArgumentException(
"PEM file '{$pemFile}' is not readable"
);
}
return new static(file_get_contents($pemFile), $passPhrase);
}
/**
* Constructor
*
* @param string $pemString
* @param string $passPhrase
* @throws ExceptionRuntimeException
*/
public function __construct($pemString, $passPhrase = null)
{
$result = openssl_pkey_get_private($pemString, $passPhrase);
if (false === $result) {
throw new ExceptionRuntimeException(
'Unable to load private key; openssl ' . openssl_error_string()
);
}
$this->pemString = $pemString;
$this->opensslKeyResource = $result;
$this->details = openssl_pkey_get_details($this->opensslKeyResource);
}
/**
* Get the public key
*
* @return PublicKey
*/
public function getPublicKey()
{
if ($this->publicKey === null) {
$this->publicKey = new PublicKey($this->details['key']);
}
return $this->publicKey;
}
/**
* Encrypt using this key
*
* @param string $data
* @return string
* @throws ExceptionRuntimeException
* @throws ExceptionInvalidArgumentException
*/
public function encrypt($data)
{
if (empty($data)) {
throw new ExceptionInvalidArgumentException('The data to encrypt cannot be empty');
}
$encrypted = '';
$result = openssl_private_encrypt($data, $encrypted, $this->getOpensslKeyResource());
if (false === $result) {
throw new ExceptionRuntimeException(
'Can not encrypt; openssl ' . openssl_error_string()
);
}
return $encrypted;
}
/**
* Decrypt using this key
*
* @param string $data
* @return string
* @throws ExceptionRuntimeException
* @throws ExceptionInvalidArgumentException
*/
public function decrypt($data)
{
if (!is_string($data)) {
throw new ExceptionInvalidArgumentException('The data to decrypt must be a string');
}
if ('' === $data) {
throw new ExceptionInvalidArgumentException('The data to decrypt cannot be empty');
}
$decrypted = '';
$result = openssl_private_decrypt($data, $decrypted, $this->getOpensslKeyResource());
if (false === $result) {
throw new ExceptionRuntimeException(
'Can not decrypt; openssl ' . openssl_error_string()
);
}
return $decrypted;
}
/**
* @return string
*/
public function toString()
{
return $this->pemString;
}
}