Source of file PrivateKey.php
Size: 3,680 Bytes - Last Modified: 2014-03-12T23:21:18+01:00
/home/theseer/Downloads/ZendFramework-2.3.0/library/Zend/Crypt/PublicKey/Rsa/PrivateKey.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139 | <?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 Zend\Crypt\PublicKey\Rsa; /** * 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 $passPhrase * @return PrivateKey * @throws Exception\InvalidArgumentException */ public static function fromFile($pemFile, $passPhrase = null) { if (!is_readable($pemFile)) { throw new Exception\InvalidArgumentException( "PEM file '{$pemFile}' is not readable" ); } return new static(file_get_contents($pemFile), $passPhrase); } /** * Constructor * * @param string $pemString * @param string $passPhrase * @throws Exception\RuntimeException */ public function __construct($pemString, $passPhrase = null) { $result = openssl_pkey_get_private($pemString, $passPhrase); if (false === $result) { throw new Exception\RuntimeException( '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 $data * @return string * @throws Exception\RuntimeException * @throws Exception\InvalidArgumentException */ public function encrypt($data) { if (empty($data)) { throw new Exception\InvalidArgumentException('The data to encrypt cannot be empty'); } $encrypted = ''; $result = openssl_private_encrypt($data, $encrypted, $this->getOpensslKeyResource()); if (false === $result) { throw new Exception\RuntimeException( 'Can not encrypt; openssl ' . openssl_error_string() ); } return $encrypted; } /** * Decrypt using this key * * @param string $data * @return string * @throws Exception\RuntimeException * @throws Exception\InvalidArgumentException */ public function decrypt($data) { if (!is_string($data)) { throw new Exception\InvalidArgumentException('The data to decrypt must be a string'); } if ('' === $data) { throw new Exception\InvalidArgumentException('The data to decrypt cannot be empty'); } $decrypted = ''; $result = openssl_private_decrypt($data, $decrypted, $this->getOpensslKeyResource()); if (false === $result) { throw new Exception\RuntimeException( 'Can not decrypt; openssl ' . openssl_error_string() ); } return $decrypted; } /** * @return string */ public function toString() { return $this->pemString; } } |