/**
* プライベートキー取得時使用
* @return array
* @access public
*/
function &getEncryptionKeys()
{
// 有効期限が切れてないものを取得
$int_time = mktime(date("H"), date("i"), date("s"), date("m"), date("d") - $this->expiration_day, date("Y"));
$time = date("YmdHis", $int_time);
$where_params = array("expiration_time >= " . $time => null);
$result = $this->_db->selectExecute("encryption", $where_params, null, 1);
if ($result === false) {
return $result;
}
if (!isset($result[0])) {
// 有効期限が切れている or 新規作成
$key_pair = new Crypt_RSA_KeyPair($this->key_length);
$public_key = $key_pair->getPublicKey();
$private_key = $key_pair->getPrivateKey();
//insert
$update_time = timezone_date();
$container =& DIContainerFactory::getContainer();
$session =& $container->getComponent("Session");
$user_id = $session->getParameter("_user_id");
$int_time = mktime(date("H"), date("i"), date("s"), date("m"), date("d") + $this->expiration_day, date("Y"));
$time = date("YmdHis", $int_time);
$params = array("public_key" => $public_key->toString(), "private_key" => $private_key->toString(), "key_length" => $this->key_length, "expiration_time" => $time, "update_time" => $update_time, "update_user" => $user_id);
$result = $this->_db->insertExecute("encryption", $params, false);
if ($result === false) {
return $result;
}
} else {
$params = $result[0];
//$private_key = $result[0]['private_key'];
}
return $params;
}
function go($math_wrapper)
{
echo "Test {$math_wrapper}: ";
mt_srand(1);
$start = getmicrotime();
$keypair =& Crypt_RSA_KeyPair::factory(KEY_LENGTH, $math_wrapper, '', 'mt_rand');
if (PEAR::isError($obj)) {
echo 'failed: ', $obj->getMessage(), "\n";
return;
}
$time = getmicrotime() - $start;
printf("done. Time: %.3f seconds\n", $time);
}
function wrap_rsa_get_key_size($keypair = '')
{
global $last_rsa_error;
global $wrap_rsa_default_key_size;
if ($keypair === '') {
return $wrap_rsa_default_key_size;
}
$key_pair = Crypt_RSA_KeyPair::fromPEMString($keypair, 'default', 'wrap_rsa_cerr');
if ($last_rsa_error !== false) {
return false;
}
$public_key = $key_pair->getPublicKey();
if (wrap_rsa_cerr($public_key)) {
return false;
}
$length = (int) $public_key->getKeyLength();
if (wrap_rsa_cerr($public_key)) {
return false;
}
return $length;
}
public static function getPublicRSAKey()
{
$errorSettings = error_reporting(0);
$pemString = file_get_contents('key.pem');
$keyPair = Crypt_RSA_KeyPair::fromPEMString($pemString);
$math_obj =& Crypt_RSA_MathLoader::loadWrapper('default');
$publicKey = $keyPair->getPublicKey();
$keyArray = array('exponent' => $math_obj->bin2int($publicKey->getExponent()), 'modulus' => $math_obj->bin2int($publicKey->getModulus()));
if ($math_obj->getWrapperName() == 'GMP') {
$keyArray = array_map('gmp_strval', $keyArray);
}
error_reporting($errorSettings);
return $keyArray;
}
/**
* converts keypair to PEM-encoded string, which can be stroed in
* .pem compatible files, contianing RSA private key.
*
* @return string PEM-encoded keypair on success, false on error
* @access public
*/
function toPEMString()
{
// store RSA private key attributes into ASN.1 string
$str = '';
$attr_names = $this->_get_attr_names();
$n = sizeof($attr_names);
$rsa_attrs = $this->_attrs;
for ($i = 0; $i < $n; $i++) {
$attr = $attr_names[$i];
if (!isset($rsa_attrs[$attr])) {
$this->pushError("Cannot find value for ASN.1 attribute [{$attr}]");
return false;
}
$tmp = $rsa_attrs[$attr];
$str .= Crypt_RSA_KeyPair::_ASN1StoreInt($tmp);
}
// prepend $str by ASN.1 SEQUENCE (0x10) header
$str = Crypt_RSA_KeyPair::_ASN1Store($str, 0x10, true);
// encode and format PEM string
$str = base64_encode($str);
$str = chunk_split($str, 64, "\n");
return "-----BEGIN RSA PRIVATE KEY-----\n{$str}-----END RSA PRIVATE KEY-----\n";
}
// try to use $public_key1 for encryption and unserialized form
// $private_key_str key for decryption
$text = '1234567890';
$enc_text = $rsa_obj->encrypt($text, $public_key1);
$private_key = Crypt_RSA_Key::fromString($private_key_str, MATH_LIBRARY, 'check_error');
$text1 = $rsa_obj->decrypt($enc_text, $private_key);
if ($text != $text1) {
$errors[] = "error in Crypt_RSA_Key class methods";
}
///////////////////////////////////////////////
// test all functionality of Crypt_RSA class
///////////////////////////////////////////////
// create Crypt_RSA object
$rsa_obj = new Crypt_RSA(array(), MATH_LIBRARY, 'check_error');
// create Crypt_RSA_KeyPair object
$key_pair = new Crypt_RSA_KeyPair(256, MATH_LIBRARY, 'check_error');
// check encrypting/decrypting function's behaviour
$params = array('enc_key' => $key_pair->getPublicKey(), 'dec_key' => $key_pair->getPrivateKey());
$rsa_obj->setParams($params);
$text = '1234567890';
$enc_text = $rsa_obj->encrypt($text);
$text1 = $rsa_obj->decrypt($enc_text);
if ($text != $text1) {
$errors[] = "error in encrypting/decrypting functions";
}
// check signing/sign validating
$params = array('public_key' => $key_pair->getPublicKey(), 'private_key' => $key_pair->getPrivateKey());
$rsa_obj->setParams($params);
$text = '1234567890';
$sign = $rsa_obj->createSign($text);
if (!$rsa_obj->validateSign($text, $sign)) {
/**
* Crypt_RSA_KeyPair factory.
*
* @param int $key_len bit length of key pair, which will be generated in constructor
* @param string $wrapper_name
* Name of math wrapper, which will be used to
* perform different operations with big integers.
* See contents of Crypt/RSA/Math folder for examples of wrappers.
* Read docs/Crypt_RSA/docs/math_wrappers.txt for details.
*
* @return object new Crypt_RSA_KeyPair object on success or PEAR_Error object on failure
* @access public
*/
function &factory($key_len, $wrapper_name = 'default')
{
$obj = new Crypt_RSA_KeyPair($key_len, $wrapper_name);
if ($obj->isError()) {
// error during creating a new object. Retrurn PEAR_Error object
return $obj->getLastError();
}
// object created successfully. Return it
return $obj;
}
* @category Encryption
* @package Crypt_RSA
* @author Alexander Valyalkin <*****@*****.**>
* @copyright 2005 Alexander Valyalkin
* @license http://www.php.net/license/3_0.txt PHP License 3.0
* @version 1.0.0
* @link http://pear.php.net/package/Crypt_RSA
*/
/**
* this test script checks factory() methods functionality
* for Crypt_RSA, Crypt_RSA_Key and Crypt_RSA_KeyPair classes
*/
require_once dirname(__FILE__) . '/../RSA.php';
echo "Start of testing factory() methods...\n";
// try to create a Crypt_RSA object using factory() static call
$obj =& Crypt_RSA::factory();
if (PEAR::isError($obj)) {
echo 'error in Crypt_RSA factory(): ', $obj->getMessage(), "\n";
}
// try to create a Crypt_RSA_KeyPair object using factory() static call
$obj =& Crypt_RSA_KeyPair::factory(128);
if (PEAR::isError($obj)) {
echo 'error in Crypt_RSA_KeyPair factory(): ', $obj->getMessage(), "\n";
}
$key = $obj->getPrivateKey();
// try to create a Crypt_RSA_Key object using factory() static call
$obj =& Crypt_RSA_Key::factory($key->getModulus(), $key->getExponent(), $key->getKeyType());
if (PEAR::isError($obj)) {
echo 'error in Crypt_RSA_KeyPair factory(): ', $obj->getMessage(), "\n";
}
echo "end\n";
