chamilo / chamilo-lms

    public function __construct($type, $params=NULL) {

        srand();

        switch ($type) {

            case (self::TRIPLEDES_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_TRIPLEDES;

                $this->cryptParams['mode'] = MCRYPT_MODE_CBC;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#tripledes-cbc';

                $this->cryptParams['keysize'] = 24;

                break;

            case (self::AES128_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_RIJNDAEL_128;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#tripledes-cbc';

                $this->cryptParams['keysize'] = 24;

                break;

            case (self::AES128_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_RIJNDAEL_128;

                $this->cryptParams['mode'] = MCRYPT_MODE_CBC;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#aes128-cbc';

                $this->cryptParams['keysize'] = 16;

                break;

            case (self::AES192_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_RIJNDAEL_128;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#aes128-cbc';

                $this->cryptParams['keysize'] = 16;

                break;

            case (self::AES192_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_RIJNDAEL_128;

                $this->cryptParams['mode'] = MCRYPT_MODE_CBC;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#aes192-cbc';

                $this->cryptParams['keysize'] = 24;

                break;

            case (self::AES256_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_RIJNDAEL_128;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#aes192-cbc';

                $this->cryptParams['keysize'] = 24;

                break;

            case (self::AES256_CBC):

                $this->cryptParams['library'] = 'mcrypt';

                $this->cryptParams['cipher'] = MCRYPT_RIJNDAEL_128;

                $this->cryptParams['mode'] = MCRYPT_MODE_CBC;

                $this->cryptParams['method'] = 'http://www.w3.org/2001/04/xmlenc#aes256-cbc';

                $this->cryptParams['keysize'] = 32;

                break;

            case (self::RSA_1_5):

                $this->cryptParams['library'] = 'openssl';

                $this->cryptParams['padding'] = OPENSSL_PKCS1_PADDING;