/**
* Constructor
*
* @param string $key Secret encryption key.
* It's unsafe to store encryption key in memory, so no getter for key exists.
* @param string $cipher Cipher algorithm (one of the MCRYPT_ciphername constants)
* @param string $mode Mode of cipher algorithm (MCRYPT_MODE_modeabbr constants)
* @param string|bool $initVector Initial vector to fill algorithm blocks.
* TRUE generates a random initial vector.
* FALSE fills initial vector with zero bytes to not use it.
* @throws Magento_Exception
*/
public function __construct($key, $cipher = MCRYPT_BLOWFISH, $mode = MCRYPT_MODE_ECB, $initVector = false)
{
$this->_cipher = $cipher;
$this->_mode = $mode;
$this->_handle = mcrypt_module_open($cipher, '', $mode, '');
try {
$maxKeySize = mcrypt_enc_get_key_size($this->_handle);
if (strlen($key) > $maxKeySize) {
throw new Magento_Exception('Key must not exceed ' . $maxKeySize . ' bytes.');
}
$initVectorSize = mcrypt_enc_get_iv_size($this->_handle);
if (true === $initVector) {
/* Generate a random vector from human-readable characters */
$abc = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$initVector = '';
for ($i = 0; $i < $initVectorSize; $i++) {
$initVector .= $abc[rand(0, strlen($abc) - 1)];
}
} else {
if (false === $initVector) {
/* Set vector to zero bytes to not use it */
$initVector = str_repeat("", $initVectorSize);
} else {
if (!is_string($initVector) || strlen($initVector) != $initVectorSize) {
throw new Magento_Exception('Init vector must be a string of ' . $initVectorSize . ' bytes.');
}
}
}
$this->_initVector = $initVector;
} catch (Exception $e) {
mcrypt_module_close($this->_handle);
throw $e;
}
mcrypt_generic_init($this->_handle, $key, $initVector);
}
/**
* 实例化类库
*
* @param string $secret_key 加密的安全码
*
* @return void
*/
public function __construct($secret_key)
{
$this->td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
$this->iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->td), MCRYPT_DEV_RANDOM);
$this->ks = mcrypt_enc_get_key_size($this->td);
$this->key = substr(md5($secret_key), 0, $this->ks);
}
private function __construct()
{
if (!function_exists('mcrypt_module_open')) {
throw new Hayate_Exception(sprintf(_('%s: mcrypt extension is missing.'), __CLASS__));
}
switch (self::ALGO) {
case 'aes':
$algo = MCRYPT_RIJNDAEL_256;
break;
case 'tripledes':
$algo = MCRYPT_TRIPLEDES;
break;
case 'blowfish':
$algo = MCRYPT_BLOWFISH;
break;
default:
throw new Hayate_Exception(sprintf(_('%s is not supported, please use "aes", "tripledes" or "blowfish"'), self::ALGO));
}
// initialize mcrypt
$this->mcrypt = mcrypt_module_open($algo, '', MCRYPT_MODE_CBC, '');
// calculate IV size
$this->ivsize = mcrypt_enc_get_iv_size($this->mcrypt);
// calculate key max key length
$this->maxKeysize = mcrypt_enc_get_key_size($this->mcrypt);
$config = Hayate_Config::getInstance();
if ($config->get('core.secret_key', false)) {
$this->setKey($config->core->secret_key);
}
}
public function decrypt($encrypted, $is_id = false)
{
static $_map = array();
if ($is_id) {
$len = strlen($encrypted);
$tmp = '';
for ($i = 0; $i < $len; $i = $i + 2) {
$tmp = $tmp . chr(hexdec($encrypted[$i] . $encrypted[$i + 1]));
}
$encrypted = $tmp;
} else {
$encrypted = base64_decode($encrypted);
}
$hashkey = md5($encrypted . $this->key);
if (isset($_map[$hashkey])) {
return $_map[$hashkey];
}
$key = str_pad($this->key, 24, '0');
$td = mcrypt_module_open(MCRYPT_3DES, '', 'ecb', '');
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
$ks = mcrypt_enc_get_key_size($td);
@mcrypt_generic_init($td, $key, $iv);
$decrypted = mdecrypt_generic($td, $encrypted);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
$y = $this->pkcs5_unpad($decrypted);
if ($is_id) {
$y = base_convert($y, 36, 10);
}
$_map[$hashkey] = $y;
return $y;
}
/**
* _getComplete
*
* method is prepare complete xml data call from callback url page.
*
* @param Dahius_VirtualPos_Request $request
* @return string
*/
protected function _getComplete($request)
{
$response = new Dahius_VirtualPos_Response();
$response->createdOn = time();
$response->createdBy = $this->_name;
// Check 3D Values
$merchantPack = $request->threeDResponse["MerchantPacket"];
$bankPack = $request->threeDResponse["BankPacket"];
$sign = $request->threeDResponse["Sign"];
$hash = strtoupper(md5($merchantPack . $bankPack . $this->_parameters->getPath("merchant_key")));
if (strcmp($hash, $sign) != 0) {
$response->code = -4;
$response->message = "Package Not Matched";
return $response;
}
// Get MD Status...
$block = mcrypt_get_block_size(MCRYPT_TripleDES, MCRYPT_MODE_CBC);
$tdes = mcrypt_module_open(MCRYPT_TripleDES, '', MCRYPT_MODE_CBC, '');
$key_size = mcrypt_enc_get_key_size($tdes);
$merchant_info = $this->_deCrypt($merchantPack, $this->_parameters->getPath("merchant_key"), $block, $tdes, $key_size);
mcrypt_generic_deinit($tdes);
mcrypt_module_close($tdes);
list($mid, $tid, $amount, $instant, $xid, $tp, $tpo, $webURL, $ip, $port, $txStatus, $mdStatus, $errMsg, $transactionTime, $currency) = explode(";", $merchant_info);
if (!in_array($mdStatus, $this->_parameters->getPath("valid_md_status"))) {
$response->code = -3;
$response->message = "mdStatus({$request->threeDResponse["mdStatus"]}) Not Valid";
return $response;
}
$xml = "<?xml version=\"1.0\" encoding=\"ISO-8859-9\"?>\n <posnetRequest>\n <mid>{$this->_parameters->getPath("mid")}</mid>\n <tid>{$this->_parameters->getPath("tid")}</tid>\n <username>{$this->_parameters->getPath("username")}</username>\n <password>{$this->_parameters->getPath("password")}</password>\n <oosTran>\n <bank>{$bankPack}</bank>\n <wpAmount>0</wpAmount>\n </oosTran>\n </posnetRequest>";
return "xmldata={$xml}";
}
function ssl_encode($data, $key = '')
{
// Use the Encrypt.php function get_key to encode the data.
$key = $this->get_key($key);
// Set a random salt
$salt = substr(md5(mt_rand(), true), 8);
$block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
$pad = $block - strlen($data) % $block;
$data = $data . str_repeat(chr($pad), $pad);
// Setup encryption parameters
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, "", MCRYPT_MODE_CBC, "");
$key_len = mcrypt_enc_get_key_size($td);
$iv_len = mcrypt_enc_get_iv_size($td);
$total_len = $key_len + $iv_len;
$salted = '';
$dx = '';
// Salt the key and iv
while (strlen($salted) < $total_len) {
$dx = md5($dx . $key . $salt, true);
$salted .= $dx;
}
$key = substr($salted, 0, $key_len);
$iv = substr($salted, $key_len, $iv_len);
mcrypt_generic_init($td, $key, $iv);
$encrypted_data = mcrypt_generic($td, $data);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return chunk_split(base64_encode('Salted__' . $salt . $encrypted_data), 32, "\n");
}
/**
* 对密文进行解密
* @param string $encrypt 密文
* @return string 明文
*/
public function decrypt($encrypt)
{
//BASE64解码
$encrypt = base64_decode($encrypt);
//打开加密算法模块
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
//初始化加密算法模块
mcrypt_generic_init($td, $this->cyptKey, substr($this->cyptKey, 0, 16));
//执行解密
$decrypt = mdecrypt_generic($td, $encrypt);
//去除PKCS7补位
$decrypt = self::PKCS7Decode($decrypt, mcrypt_enc_get_key_size($td));
//关闭加密算法模块
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
if (strlen($decrypt) < 16) {
throw new \Exception("非法密文字符串！");
}
//去除随机字符串
$decrypt = substr($decrypt, 16);
//获取网络字节序
$size = unpack("N", substr($decrypt, 0, 4));
$size = $size[1];
//APP_ID
$appid = substr($decrypt, $size + 4);
//验证APP_ID
if ($appid !== $this->appId) {
throw new \Exception("非法APP_ID！");
}
//明文内容
$text = substr($decrypt, 4, $size);
return $text;
}
/**
* Decryption of data
*
* @param string $data Data to be decrypted
* @param bool|string $key Key, if not specified - system key will be used
*
* @return bool|mixed
*/
function decrypt($data, $key = false)
{
if (!$this->encrypt_support) {
return $data;
}
if (!is_resource($this->td)) {
$this->td = mcrypt_module_open(MCRYPT_BLOWFISH, '', 'cbc', '');
$this->key = mb_substr($this->key, 0, mcrypt_enc_get_key_size($this->td));
$this->iv = mb_substr(md5($this->iv), 0, mcrypt_enc_get_iv_size($this->td));
}
if ($key === false) {
$key = $this->key;
} else {
$key = mb_substr(md5($this->key) . md5($key), 0, mcrypt_enc_get_key_size($this->td));
}
mcrypt_generic_init($this->td, $key, $this->iv);
errors_off();
$decrypted = @unserialize(mdecrypt_generic($this->td, $data));
errors_on();
mcrypt_generic_deinit($this->td);
if (is_array($decrypted) && $decrypted['key'] == $key) {
return $decrypted['data'];
} else {
return false;
}
}
public function __construct($key, $algorithm, $mode = 'ecb', $iv = false)
{
/* In non-ECB mode, an initialization vector is required. */
if ($mode != 'ecb' && $iv === false) {
return false;
}
/* Try to open the encryption module. */
$this->_td = mcrypt_module_open($algorithm, '', $mode, '');
if ($this->_td === false) {
return false;
}
/* Use UNIX random number generator if available. */
if (strstr(PHP_OS, 'WIN') !== false) {
$randomSeed = MCRYPT_RAND;
} else {
$randomSeed = MCRYPT_DEV_RANDOM;
}
/* If an initialization vector was not specified, create one;
* otherwise ensure that the specified IV is the proper size.
*/
if ($iv === false) {
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->_td), $randomSeed);
} else {
$iv = substr($iv, 0, mcrypt_enc_get_iv_size($this->_td));
}
/* Trim the key to the maximum allowed key size. */
$key = substr($key, 0, mcrypt_enc_get_key_size($this->_td));
/* Initialize the MCrypt library. */
mcrypt_generic_init($this->_td, $key, $iv);
}
function phpFreaksCrypto($key = 'a843l?nv89rjfd}O(jdnsleken0', $iv = false, $algorithm = 'tripledes', $mode = 'ecb')
{
if (extension_loaded('mcrypt') === FALSE) {
//$prefix = (PHP_SHLIB_SUFFIX == 'dll') ? 'php_' : '';
//dl($prefix . 'mcrypt.' . PHP_SHLIB_SUFFIX) or die('The Mcrypt module could not be loaded.');
die('The Mcrypt module is not loaded and is required.');
}
if ($mode != 'ecb' && $iv === false) {
/*
the iv must remain the same from encryption to decryption and is usually
passed into the encrypted string in some form, but not always.
*/
die('In order to use encryption modes other then ecb, you must specify a unique and consistent initialization vector.');
}
// set mcrypt mode and cipher
$this->td = mcrypt_module_open($algorithm, '', $mode, '');
// Unix has better pseudo random number generator then mcrypt, so if it is available lets use it!
//$random_seed = strstr(PHP_OS, "WIN") ? MCRYPT_RAND : MCRYPT_DEV_RANDOM;
$random_seed = MCRYPT_RAND;
// if initialization vector set in constructor use it else, generate from random seed
$iv = $iv === false ? mcrypt_create_iv(mcrypt_enc_get_iv_size($this->td), $random_seed) : substr($iv, 0, mcrypt_enc_get_iv_size($this->td));
// get the expected key size based on mode and cipher
$expected_key_size = mcrypt_enc_get_key_size($this->td);
// we dont need to know the real key, we just need to be able to confirm a hashed version
$key = substr(md5($key), 0, $expected_key_size);
// initialize mcrypt library with mode/cipher, encryption key, and random initialization vector
mcrypt_generic_init($this->td, $key, $iv);
}
function enkripsi_plain2($algoritma, $mode, $secretkey, $fileplain)
{
/* Membuka Modul untuk memilih Algoritma & Mode Operasi */
$td = mcrypt_module_open($algoritma, '', $mode, '');
/* Inisialisasi IV dan Menentukan panjang kunci yang digunakan*/
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
$ks = mcrypt_enc_get_key_size($td);
/* Menghasilkan Kunci */
$key = $secretkey;
//echo "kuncinya : ". $key. "<br>";
/* Inisialisasi */
mcrypt_generic_init($td, $key, $iv);
/* Enkripsi Data, dimana hasil enkripsi harus di encode dengan base64.\
Hal ini dikarenakan web browser tidak dapat membaca karakter-karakter\
ASCII dalam bentuk simbol-simbol */
$buffer = $fileplain;
$encrypted = mcrypt_generic($td, $buffer);
$encrypted1 = base64_encode($iv) . ";" . base64_encode($encrypted);
$encrypted2 = base64_encode($encrypted1);
$filecipher = $encrypted2;
/* Menghentikan proses enkripsi dan menutup modul */
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $filecipher;
}
public static function decrypt($string, $key = null, $salt = null, $iv = null)
{
$config = ConfigManager::getConfig('Crypto', 'AES256')->AuxConfig;
if ($key === null) {
$key = $config->key;
}
if ($salt === null) {
$salt = $config->salt;
}
if ($iv === null) {
$iv = $config->iv;
}
$td = mcrypt_module_open('rijndael-128', '', MCRYPT_MODE_CBC, '');
$ks = mcrypt_enc_get_key_size($td);
$bs = mcrypt_enc_get_block_size($td);
$iv = substr(hash("sha256", $iv), 0, $bs);
// Create key
$key = Crypto::pbkdf2("sha512", $key, $salt, $config->pbkdfRounds, $ks);
// Initialize encryption module for decryption
mcrypt_generic_init($td, $key, $iv);
$decryptedString = "";
// Decrypt encrypted string
try {
if (ctype_xdigit($string)) {
$decryptedString = trim(mdecrypt_generic($td, pack("H*", $string)));
}
} catch (ErrorException $e) {
}
// Terminate decryption handle and close module
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
// Show string
return $decryptedString;
}
/**
* Initialize mcrypt module
*
* @param string $key cipher private key
* @return Varien_Crypt_Mcrypt
*/
public function init($key)
{
if (!$this->getCipher()) {
$this->setCipher(MCRYPT_BLOWFISH);
}
if (!$this->getMode()) {
$this->setMode(MCRYPT_MODE_ECB);
}
$this->setHandler(mcrypt_module_open($this->getCipher(), '', $this->getMode(), ''));
if (!$this->getInitVector()) {
if (MCRYPT_MODE_CBC == $this->getMode()) {
$this->setInitVector(substr(md5(mcrypt_create_iv(mcrypt_enc_get_iv_size($this->getHandler()), MCRYPT_RAND)), -mcrypt_enc_get_iv_size($this->getHandler())));
} else {
$this->setInitVector(mcrypt_create_iv(mcrypt_enc_get_iv_size($this->getHandler()), MCRYPT_RAND));
}
}
$maxKeySize = mcrypt_enc_get_key_size($this->getHandler());
if (strlen($key) > $maxKeySize) {
// strlen() intentionally, to count bytes, rather than characters
$this->setHandler(null);
throw new Varien_Exception('Maximum key size must be smaller ' . $maxKeySize);
}
mcrypt_generic_init($this->getHandler(), $key, $this->getInitVector());
return $this;
}
function __construct()
{
$this->resource = mcrypt_module_open(MCRYPT_BLOWFISH, '', MCRYPT_MODE_CBC, '');
$ks = mcrypt_enc_get_key_size($this->resource);
$this->key = substr(md5($this->key), 0, $ks);
$ivsize = mcrypt_enc_get_iv_size($this->resource);
$this->iv = substr(md5($this->key), 0, $ivsize);
}
public function __construct($algorithm, $mode)
{
if (!($this->crResource = mcrypt_module_open($algorithm, null, $mode, null))) {
throw new WrongStateException('Mcrypt Module did not open.');
}
$this->iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->crResource), MCRYPT_DEV_URANDOM);
$this->keySize = mcrypt_enc_get_key_size($this->crResource);
}
private function checkKey()
{
if (strlen($this->key) == 0) {
throw new \InvalidArgumentException('The key length must be > 0');
} elseif (strlen($this->key) > ($keyMaxLength = mcrypt_enc_get_key_size($this->module))) {
throw new \InvalidArgumentException('The key length must be <= ' . $keyMaxLength . ' for the choosen algorithm (' . $this->algorithm . ')');
}
}
/**
* @param string $key Human readable key
* @param string $cipher Cipher/algorithm
* @param string $mode Crypt mode
*/
public function __construct($key = 'top secret key', $cipher = MCRYPT_RIJNDAEL_256, $mode = MCRYPT_MODE_ECB)
{
$this->module = mcrypt_module_open($cipher, '', $mode, '');
$this->iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->module), MCRYPT_DEV_RANDOM);
$keySize = mcrypt_enc_get_key_size($this->module);
// todo improve to hex
$this->key = substr(md5($key), 0, $keySize);
}
function __construct()
{
$this->td = mcrypt_module_open('rijndael-256', '', 'ofb', '');
$this->iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->td), MCRYPT_DEV_RANDOM);
$this->ks = mcrypt_enc_get_key_size($this->td);
//$this->key = substr(md5('very secret key'), 0, $this->ks);
$this->key = substr(sha1('very secret key'), 0, $this->ks);
}
/**
* Encrypt data returning a JSON encoded array safe for storage in a database
* or file. The array has the following structure before it is encoded:
* array(
* 'cdata' => 'Encrypted data, Base 64 encoded',
* 'iv' => 'Base64 encoded IV',
* 'algo' => 'Algorythm used',
* 'mode' => 'Mode used',
* 'mac' => 'Message Authentication Code'
* )
*
* @param mixed $data
* Data to encrypt.
*
* @param string $key
* Key to encrypt data with.
*
* @return string
* Serialized array containing the encrypted data along with some meta data.
*/
public function encrypt($data, $key)
{
/* Make sure both algorithm and mode are either block or non-block. */
$isBlockCipher = mcrypt_module_is_block_algorithm($this->_algo);
$isBlockMode = mcrypt_module_is_block_algorithm_mode($this->_mode);
if ($isBlockCipher !== $isBlockMode) {
throw new \phpSec\Exception\InvalidAlgorithmParameterException('You can not mix block and non-block ciphers and modes');
return false;
}
$td = mcrypt_module_open($this->_algo, '', $this->_mode, '');
/* Check key size. */
$keySize = strlen($key);
$keySizes = mcrypt_enc_get_supported_key_sizes($td);
if (count($keySizes) > 0) {
/* Encryption method requires a specific key size. */
if (!in_array($keySize, $keySizes)) {
throw new \phpSec\Exception\InvalidKeySpecException('Key is out of range. Should be one of: ' . implode(', ', $keySizes));
return false;
}
} else {
/* No specific size is needed. */
if ($keySize == 0 || $keySize > mcrypt_enc_get_key_size($td)) {
throw new \phpSec\Exception\InvalidKeySpecException('Key is out of range. Should be between 1 and ' . mcrypt_enc_get_key_size($td) . ' bytes.');
return false;
}
}
/* Using PBKDF with constant salts dedicated to each purpose
* can securely derivce two keys from one */
$key1 = $this->pbkdf2($key, "encrypt", 1, $keySize);
$key2 = $this->pbkdf2($key, "HMAC", 1, $keySize);
/* Create IV. */
$rnd = $this->psl['crypt/rand'];
$iv = $rnd->bytes(mcrypt_enc_get_iv_size($td));
/* Init mcrypt. */
mcrypt_generic_init($td, $key1, $iv);
/* Prepeare the array with data. */
$serializedData = serialize($data);
/* Enable padding of data if block cipher moode. */
if (mcrypt_module_is_block_algorithm_mode($this->_mode) === true) {
$this->_padding = true;
}
/* Add padding if enabled. */
if ($this->_padding === true) {
$block = mcrypt_enc_get_block_size($td);
$serializedData = $this->pad($block, $serializedData);
$encrypted['padding'] = 'PKCS7';
}
$encrypted['algo'] = $this->_algo;
/* Algorithm used to encrypt. */
$encrypted['mode'] = $this->_mode;
/* Algorithm mode. */
$encrypted['iv'] = base64_encode($iv);
/* Initialization vector, just a bunch of randomness. */
$encrypted['cdata'] = base64_encode(mcrypt_generic($td, $serializedData));
/* The encrypted data. */
$encrypted['mac'] = base64_encode($this->pbkdf2($encrypted['cdata'], $key2, 1, 32));
return json_encode($encrypted);
}
private function start()
{
$this->resource = mcrypt_module_open($this->algorithm, '', $this->mode, '');
$this->key_size = mcrypt_enc_get_key_size($this->resource);
$this->key = substr($this->raw_key, 0, $this->key_size);
$this->iv_size = mcrypt_enc_get_iv_size($this->resource);
$this->iv = mcrypt_create_iv($this->iv_size, MCRYPT_RAND);
return $this->initialize();
}
public function __construct($key)
{
$td = mcrypt_module_open('des', '', 'ecb', '');
$key = substr($key, 0, mcrypt_enc_get_key_size($td));
$iv_size = mcrypt_enc_get_iv_size($td);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
mcrypt_generic_init($td, $key, $iv);
$this->td = $td;
}
/**
* 构造函数
*
*/
private function __construct()
{
//生成对象
$this->_object_mode = mcrypt_module_open($this->_algorithm, '', $this->_encryp_mode, '');
//密钥长度
$this->_key_size = mcrypt_enc_get_key_size($this->_object_mode);
//加密密钥
$this->_key_algorithm = substr(md5($this->_secret_key), 0, $this->_key_size);
}
/**
* Instantiates a new rijndael-based encryptor with the specified cipher,
* secret and IV.
*
* @param string $cipher one of the MCRYPT_* constants
* @param string $secret to be used as the key for encryption/decryption
* @param string $iv a random, but optionally public, value
*/
public function __construct($cipher, $secret, $iv)
{
// Initialize the encryptor module.
$this->module = mcrypt_module_open($cipher, '', MCRYPT_MODE_CBC, '');
// Pad the secret key or IV when needed, or cut them short.
$this->secret = self::constrainStringSize($secret, mcrypt_enc_get_key_size($this->module));
$this->iv = self::constrainStringSize($iv, mcrypt_enc_get_iv_size($this->module));
$this->cipher = $cipher;
}
public function generate_key()
{
global $conf, $util;
$td = mcrypt_module_open($conf->encrypt_algo, '', $conf->encrypt_mode, '');
$ks = mcrypt_enc_get_key_size($td);
$key = $util->random_string($ks);
mcrypt_module_close($td);
return $key;
}
function generateSharingKey()
{
$this->keyBasic = md5(uniqid(rand(), true));
$maxSizeKey = mcrypt_enc_get_key_size($this->cypherOpen("", ""));
$this->keyBasic = substr($this->keyBasic, 0, $maxSizeKey);
$size = strlen($this->keyBasic);
$this->serverKey = substr($this->keyBasic, 0, $size / 2);
$this->clientKey = substr($this->keyBasic, $size / 2, $size);
$this->setKey($this->serverKey . $this->clientKey);
}
public function __construct()
{
$td = mcrypt_module_open('des', '', 'ecb', '');
$key = substr($this->keys, 0, mcrypt_enc_get_key_size($td));
$iv_size = mcrypt_enc_get_iv_size($td);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$this->key = $key;
$this->iv = $iv;
$this->td = $td;
}
function decrypt($encrypted_text, $key)
{
$cipher = mcrypt_module_open(MCRYPT_TRIPLEDES, '', 'ecb', '');
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($cipher), MCRYPT_RAND);
$key = substr($key, 0, mcrypt_enc_get_key_size($cipher));
mcrypt_generic_init($cipher, $key, $iv);
$decrypted = mdecrypt_generic($cipher, base64_decode(urldecode($encrypted_text)));
mcrypt_generic_deinit($cipher);
return $decrypted;
}
/**
* init encryption module
*/
private function init()
{
$this->module = mcrypt_module_open($this->algorithm, '', MCRYPT_MODE_ECB, '');
// Create the IV and determine the keysize length
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($this->module), MCRYPT_RAND);
$ks = mcrypt_enc_get_key_size($this->module);
/* Create key */
$key = substr(md5($this->secretKey), 0, $ks);
/* Intialize */
mcrypt_generic_init($this->module, $key, $iv);
}
/**
* Generates a random salt.
*
* @return string
*/
protected function generateSalt()
{
$length = mcrypt_enc_get_key_size(mcrypt_module_open($this->cipher, '', $this->mode, ''));
$validChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$salt = '';
$count = strlen($validChars) - 1;
while ($length--) {
$salt .= $validChars[mt_rand(0, $count)];
}
return $salt;
}
public static function encrypt($data)
{
$size = mcrypt_get_block_size('des', 'ecb');
$data = self::pkcs5_pad($data, $size);
$mcrypt_module = mcrypt_module_open(MCRYPT_TRIPLEDES, '', 'ecb', '');
$mcrypt_iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($mcrypt_module), MCRYPT_RAND);
$key_size = mcrypt_enc_get_key_size($mcrypt_module);
mcrypt_generic_init($mcrypt_module, self::$key, $mcrypt_iv);
$encrypted = base64_encode(mcrypt_generic($mcrypt_module, $data));
mcrypt_module_close($mcrypt_module);
return $encrypted;
}
