/**
* Encrypt
*
* @param string $data
* @throws Exception\InvalidArgumentException
* @return string
*/
public function encrypt($data)
{
// Cannot encrypt empty string
if (!is_string($data) || $data === '') {
throw new Exception\InvalidArgumentException('The data to encrypt cannot be empty');
}
if (null === $this->getKey()) {
throw new Exception\InvalidArgumentException('No key specified for the encryption');
}
if (null === $this->getSalt() && $this->getSaltSize() > 0) {
throw new Exception\InvalidArgumentException('The salt (IV) cannot be empty');
}
if (null === $this->getPadding()) {
throw new Exception\InvalidArgumentException('You must specify a padding method');
}
// padding
$data = $this->padding->pad($data, $this->getBlockSize());
$iv = $this->getSalt();
// encryption
$result = openssl_encrypt($data, strtoupper($this->encryptionAlgos[$this->algo] . '-' . $this->mode), $this->getKey(), OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING, $iv);
if (false === $result) {
$errMsg = '';
while ($msg = openssl_error_string()) {
$errMsg .= $msg;
}
throw new Exception\RuntimeException(sprintf('OpenSSL error: %s', $errMsg));
}
return $iv . $result;
}
/**
* Encrypt
*
* @param string $data
* @return string
*/
public function encrypt($data)
{
if (empty($data)) {
throw new Exception\InvalidArgumentException('The data to encrypt cannot be empty');
}
if (null === $this->getKey()) {
throw new Exception\InvalidArgumentException('No key specified for the encryption');
}
if (null === $this->getSalt()) {
throw new Exception\InvalidArgumentException('The salt (IV) cannot be empty');
}
if (null === $this->getPadding()) {
throw new Exception\InvalidArgumentException('You have to specify a padding method');
}
// padding
$data = $this->padding->pad($data, $this->getBlockSize());
// get the correct iv size
$iv = substr($this->iv, 0, $this->getSaltSize());
// encryption
$result = mcrypt_encrypt(
$this->supportedAlgos[$this->algo],
substr($this->key, 0, $this->getKeySize()),
$data,
$this->supportedModes[$this->mode],
$iv
);
return $iv . $result;
}
/**
* Encrypt
*
* @param string $data
* @throws Exception\InvalidArgumentException
* @return string
*/
public function encrypt($data)
{
// Cannot encrypt empty string
if (!is_string($data) || $data === '') {
throw new Exception\InvalidArgumentException('The data to encrypt cannot be empty');
}
if (null === $this->getKey()) {
throw new Exception\InvalidArgumentException('No key specified for the encryption');
}
if (null === $this->getSalt()) {
throw new Exception\InvalidArgumentException('The salt (IV) cannot be empty');
}
if (null === $this->getPadding()) {
throw new Exception\InvalidArgumentException('You have to specify a padding method');
}
// padding
$data = $this->padding->pad($data, $this->getBlockSize());
$iv = $this->getSalt();
// encryption
$result = mcrypt_encrypt($this->supportedAlgos[$this->algo], $this->getKey(), $data, $this->supportedModes[$this->mode], $iv);
return $iv . $result;
}
