Online PHP editor | perf for hHBjT

@ 2014-08-19T17:27:39Z

<?php namespace Illuminate\Encryption;

use Symfony\Component\Security\Core\Util\StringUtils;
use Symfony\Component\Security\Core\Util\SecureRandom;

class DecryptException extends \RuntimeException {}

class Encrypter {

	/**
	 * The encryption key.
	 *
	 * @var string
	 */
	protected $key;

	/**
	 * The algorithm used for encryption.
	 *
	 * @var string
	 */
	protected $cipher = 'rijndael-256';

	/**
	 * The mode used for encryption.
	 *
	 * @var string
	 */
	protected $mode = 'cbc';

	/**
	 * The block size of the cipher.
	 *
	 * @var int
	 */
	protected $block = 32;

	/**
	 * Create a new encrypter instance.
	 *
	 * @param  string  $key
	 * @return void
	 */
	public function __construct($key)
	{
		$this->key = $key;
	}

	/**
	 * Encrypt the given value.
	 *
	 * @param  string  $value
	 * @return string
	 */
	public function encrypt($value)
	{
		$iv = mcrypt_create_iv($this->getIvSize(), $this->getRandomizer());

		$value = base64_encode($this->padAndMcrypt($value, $iv));

		// Once we have the encrypted value we will go ahead base64_encode the input
		// vector and create the MAC for the encrypted value so we can verify its
		// authenticity. Then, we'll JSON encode the data in a "payload" array.
		$mac = $this->hash($iv = base64_encode($iv), $value);

		return base64_encode(json_encode(compact('iv', 'value', 'mac')));
	}

	/**
	 * Pad and use mcrypt on the given value and input vector.
	 *
	 * @param  string  $value
	 * @param  string  $iv
	 * @return string
	 */
	protected function padAndMcrypt($value, $iv)
	{
		$value = $this->addPadding(serialize($value));

		return mcrypt_encrypt($this->cipher, $this->key, $value, $this->mode, $iv);
	}

	/**
	 * Decrypt the given value.
	 *
	 * @param  string  $payload
	 * @return string
	 */
	public function decrypt($payload)
	{
		$payload = $this->getJsonPayload($payload);

		// We'll go ahead and remove the PKCS7 padding from the encrypted value before
		// we decrypt it. Once we have the de-padded value, we will grab the vector
		// and decrypt the data, passing back the unserialized from of the value.
		$value = base64_decode($payload['value']);

		$iv = base64_decode($payload['iv']);

		return unserialize($this->stripPadding($this->mcryptDecrypt($value, $iv)));
	}

	/**
	 * Run the mcrypt decryption routine for the value.
	 *
	 * @param  string  $value
	 * @param  string  $iv
	 * @return string
	 */
	protected function mcryptDecrypt($value, $iv)
	{
		return mcrypt_decrypt($this->cipher, $this->key, $value, $this->mode, $iv);
	}

	/**
	 * Get the JSON array from the given payload.
	 *
	 * @param  string  $payload
	 * @return array
	 *
	 * @throws DecryptException
	 */
	protected function getJsonPayload($payload)
	{
		$payload = json_decode(base64_decode($payload), true);

		// If the payload is not valid JSON or does not have the proper keys set we will
		// assume it is invalid and bail out of the routine since we will not be able
		// to decrypt the given value. We'll also check the MAC for this encryption.
		if ( ! $payload || $this->invalidPayload($payload))
		{
			throw new DecryptException("Invalid data.");
		}

		if ( ! $this->validMac($payload))
		{
			throw new DecryptException("MAC is invalid.");
		}

		return $payload;
	}

	/**
	 * Determine if the MAC for the given payload is valid.
	 *
	 * @param  array  $payload
	 * @return bool
	 */
	protected function validMac(array $payload)
	{
		$bytes = with(new SecureRandom)->nextBytes(16);

		$calcMac = hash_hmac('sha256', $this->hash($payload['iv'], $payload['value']), $bytes, true);

		return StringUtils::equals(hash_hmac('sha256', $payload['mac'], $bytes, true), $calcMac);
	}

	/**
	 * Create a MAC for the given value.
	 *
	 * @param  string  $iv
	 * @param  string  $value
	 * @return string
	 */
	protected function hash($iv, $value)
	{
		return hash_hmac('sha256', $iv.$value, $this->key);
	}

	/**
	 * Add PKCS7 padding to a given value.
	 *
	 * @param  string  $value
	 * @return string
	 */
	protected function addPadding($value)
	{
		$pad = $this->block - (strlen($value) % $this->block);

		return $value.str_repeat(chr($pad), $pad);
	}

	/**
	 * Remove the padding from the given value.
	 *
	 * @param  string  $value
	 * @return string
	 */
	protected function stripPadding($value)
	{
		$pad = ord($value[($len = strlen($value)) - 1]);

		return $this->paddingIsValid($pad, $value) ? substr($value, 0, $len - $pad) : $value;
	}

	/**
	 * Determine if the given padding for a value is valid.
	 *
	 * @param  string  $pad
	 * @param  string  $value
	 * @return bool
	 */
	protected function paddingIsValid($pad, $value)
	{
		$beforePad = strlen($value) - $pad;

		return substr($value, $beforePad) == str_repeat(substr($value, -1), $pad);
	}

	/**
	 * Verify that the encryption payload is valid.
	 *
	 * @param  array|mixed  $data
	 * @return bool
	 */
	protected function invalidPayload($data)
	{
		return ! is_array($data) || ! isset($data['iv']) || ! isset($data['value']) || ! isset($data['mac']);
	}

	/**
	 * Get the IV size for the cipher.
	 *
	 * @return int
	 */
	protected function getIvSize()
	{
		return mcrypt_get_iv_size($this->cipher, $this->mode);
	}

	/**
	 * Get the random data source available for the OS.
	 *
	 * @return int
	 */
	protected function getRandomizer()
	{
		if (defined('MCRYPT_DEV_URANDOM')) return MCRYPT_DEV_URANDOM;

		if (defined('MCRYPT_DEV_RANDOM')) return MCRYPT_DEV_RANDOM;

		mt_srand();

		return MCRYPT_RAND;
	}

	/**
	 * Set the encryption key.
	 *
	 * @param  string  $key
	 * @return void
	 */
	public function setKey($key)
	{
		$this->key = $key;
	}

	/**
	 * Set the encryption cipher.
	 *
	 * @param  string  $cipher
	 * @return void
	 */
	public function setCipher($cipher)
	{
		$this->cipher = $cipher;
	}

	/**
	 * Set the encryption mode.
	 *
	 * @param  string  $mode
	 * @return void
	 */
	public function setMode($mode)
	{
		$this->mode = $mode;
	}

}

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.3.6	0.010	0.010	18.07
8.3.5	0.013	0.005	22.75
8.3.4	0.000	0.015	18.77
8.3.3	0.007	0.007	19.13
8.3.2	0.004	0.004	20.34
8.3.1	0.014	0.000	23.64
8.3.0	0.008	0.000	17.38
8.2.18	0.010	0.007	16.50
8.2.17	0.013	0.003	22.96
8.2.16	0.009	0.006	20.55
8.2.15	0.004	0.004	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.004	0.004	26.16
8.2.12	0.008	0.000	21.00
8.2.11	0.007	0.003	22.26
8.2.10	0.006	0.006	17.89
8.2.9	0.003	0.006	17.75
8.2.8	0.003	0.005	17.97
8.2.7	0.005	0.003	18.03
8.2.6	0.005	0.003	18.22
8.2.5	0.005	0.005	18.10
8.2.4	0.005	0.007	18.95
8.2.3	0.006	0.003	18.02
8.2.2	0.000	0.007	17.75
8.2.1	0.004	0.004	18.13
8.2.0	0.000	0.008	17.78
8.1.28	0.015	0.004	25.92
8.1.27	0.008	0.000	23.96
8.1.26	0.004	0.004	26.35
8.1.25	0.007	0.000	28.09
8.1.24	0.006	0.003	23.96
8.1.23	0.003	0.007	19.13
8.1.22	0.005	0.005	17.79
8.1.21	0.000	0.008	18.77
8.1.20	0.006	0.003	17.22
8.1.19	0.004	0.004	17.22
8.1.18	0.004	0.004	18.10
8.1.17	0.000	0.008	18.63
8.1.16	0.004	0.004	22.03
8.1.15	0.007	0.000	18.75
8.1.14	0.004	0.004	17.37
8.1.13	0.007	0.000	17.84
8.1.12	0.004	0.004	17.32
8.1.11	0.003	0.005	17.30
8.1.10	0.003	0.003	17.45
8.1.9	0.000	0.007	17.30
8.1.8	0.004	0.004	17.40
8.1.7	0.000	0.007	17.38
8.1.6	0.003	0.005	17.54
8.1.5	0.008	0.000	17.44
8.1.4	0.006	0.003	17.49
8.1.3	0.008	0.000	17.50
8.1.2	0.000	0.009	17.48
8.1.1	0.004	0.004	17.35
8.1.0	0.003	0.006	17.27
8.0.30	0.006	0.003	19.90
8.0.29	0.000	0.008	16.75
8.0.28	0.004	0.004	18.37
8.0.27	0.000	0.007	17.19
8.0.26	0.003	0.003	17.22
8.0.25	0.005	0.003	16.98
8.0.24	0.010	0.000	16.96
8.0.23	0.003	0.003	16.88
8.0.22	0.007	0.000	16.86
8.0.21	0.004	0.004	16.86
8.0.20	0.006	0.000	16.88
8.0.19	0.000	0.007	16.95
8.0.18	0.005	0.003	16.83
8.0.17	0.004	0.004	16.85
8.0.16	0.000	0.007	16.72
8.0.15	0.009	0.000	16.82
8.0.14	0.005	0.003	16.77
8.0.13	0.007	0.000	13.16
8.0.12	0.000	0.008	16.88
8.0.11	0.000	0.008	16.77
8.0.10	0.000	0.007	16.85
8.0.9	0.004	0.004	16.76
8.0.8	0.013	0.006	16.91
8.0.7	0.000	0.008	16.82
8.0.6	0.000	0.007	16.73
8.0.5	0.005	0.002	16.72
8.0.3	0.009	0.010	16.94
8.0.2	0.011	0.010	17.40
8.0.1	0.000	0.007	17.00
8.0.0	0.009	0.009	16.75
7.4.33	0.002	0.002	15.03
7.4.32	0.003	0.003	16.57
7.4.30	0.000	0.008	16.57
7.4.29	0.002	0.005	16.42
7.4.28	0.005	0.002	16.52
7.4.27	0.003	0.003	16.48
7.4.26	0.008	0.000	16.60
7.4.25	0.000	0.007	16.52
7.4.24	0.005	0.002	16.46
7.4.23	0.007	0.000	16.49
7.4.22	0.012	0.012	16.34
7.4.21	0.011	0.004	16.65
7.4.20	0.003	0.006	16.68
7.4.16	0.007	0.007	16.39
7.4.15	0.020	0.000	17.40
7.4.14	0.007	0.012	17.86
7.4.13	0.006	0.012	16.40
7.4.12	0.012	0.005	16.39
7.4.11	0.003	0.014	16.29
7.4.10	0.012	0.005	16.29
7.4.9	0.013	0.006	16.57
7.4.8	0.015	0.007	19.39
7.4.7	0.010	0.007	16.58
7.4.6	0.013	0.004	16.38
7.4.5	0.002	0.002	16.07
7.4.4	0.013	0.003	16.60
7.4.3	0.014	0.007	16.39
7.4.0	0.011	0.005	14.97
7.3.33	0.006	0.003	13.13
7.3.32	0.003	0.003	13.02
7.3.31	0.003	0.003	16.16
7.3.30	0.003	0.003	16.22
7.3.29	0.010	0.010	16.20
7.3.28	0.007	0.010	16.29
7.3.27	0.011	0.006	17.40
7.3.26	0.010	0.006	16.25
7.3.24	0.010	0.006	16.48
7.3.23	0.012	0.006	16.39
7.3.21	0.014	0.005	16.45
7.3.20	0.012	0.004	19.39
7.3.19	0.010	0.007	16.51
7.3.18	0.008	0.008	16.39
7.3.17	0.013	0.003	16.61
7.3.16	0.003	0.014	16.30
7.3.12	0.005	0.013	14.78
7.3.11	0.007	0.008	14.89
7.3.10	0.005	0.008	14.91
7.3.9	0.006	0.005	14.83
7.3.8	0.002	0.013	14.60
7.3.7	0.002	0.012	14.66
7.3.6	0.004	0.009	14.85
7.3.5	0.007	0.007	14.73
7.3.4	0.005	0.010	14.82
7.3.3	0.002	0.014	14.75
7.3.2	0.005	0.008	16.50
7.3.1	0.004	0.010	16.43
7.3.0	0.008	0.006	16.59
7.2.33	0.004	0.014	16.60
7.2.32	0.010	0.010	16.70
7.2.31	0.003	0.019	16.43
7.2.30	0.010	0.006	16.21
7.2.29	0.010	0.006	16.52
7.2.25	0.007	0.011	14.85
7.2.24	0.009	0.010	15.02
7.2.23	0.010	0.007	14.91
7.2.22	0.003	0.009	14.81
7.2.21	0.002	0.012	15.13
7.2.20	0.002	0.009	14.91
7.2.19	0.005	0.009	14.73
7.2.18	0.008	0.007	14.65
7.2.17	0.005	0.009	15.01
7.2.16	0.013	0.003	14.83
7.2.15	0.000	0.014	16.73
7.2.14	0.003	0.010	16.68
7.2.13	0.003	0.010	16.55
7.2.12	0.009	0.006	16.76
7.2.11	0.010	0.003	16.71
7.2.10	0.007	0.007	16.74
7.2.9	0.008	0.004	16.43
7.2.8	0.003	0.010	16.68
7.2.7	0.004	0.011	16.44
7.2.6	0.003	0.007	16.75
7.2.5	0.003	0.010	16.84
7.2.4	0.000	0.014	16.69
7.2.3	0.009	0.003	16.67
7.2.2	0.014	0.000	16.59
7.2.1	0.011	0.004	16.72
7.2.0	0.007	0.007	16.54
7.1.33	0.007	0.007	15.48
7.1.32	0.007	0.008	15.50
7.1.31	0.005	0.009	15.60
7.1.30	0.005	0.009	15.69
7.1.29	0.004	0.011	15.44
7.1.28	0.000	0.012	15.37
7.1.27	0.008	0.004	15.61
7.1.26	0.008	0.006	15.52
7.1.25	0.011	0.004	15.38
7.1.20	0.000	0.015	15.43
7.1.10	0.000	0.009	17.98
7.1.7	0.003	0.013	17.08
7.1.6	0.007	0.017	19.40
7.1.5	0.011	0.011	16.82
7.1.0	0.003	0.077	22.37
7.0.20	0.007	0.003	16.81
7.0.14	0.007	0.067	21.98
7.0.12	0.000	0.050	21.92
7.0.11	0.003	0.043	21.98
7.0.10	0.003	0.047	22.20
7.0.9	0.000	0.043	22.00
7.0.8	0.000	0.083	22.00
7.0.7	0.003	0.057	22.00
7.0.6	0.013	0.070	21.99
7.0.5	0.003	0.043	22.07
7.0.4	0.000	0.077	20.02
7.0.3	0.000	0.040	20.16
7.0.2	0.000	0.040	19.96
7.0.1	0.000	0.040	20.00
7.0.0	0.007	0.037	20.15
5.6.28	0.013	0.060	20.98
5.6.27	0.000	0.060	20.90
5.6.26	0.003	0.043	21.13
5.6.25	0.003	0.050	21.05
5.6.24	0.003	0.047	20.93
5.6.23	0.000	0.040	20.85
5.6.22	0.003	0.063	20.81
5.6.21	0.000	0.053	20.94
5.6.20	0.010	0.033	20.94
5.6.19	0.000	0.073	20.95
5.6.18	0.000	0.070	20.80
5.6.17	0.003	0.040	21.08
5.6.16	0.000	0.040	20.93
5.6.15	0.010	0.037	20.83
5.6.14	0.003	0.040	20.85
5.6.13	0.000	0.043	21.00
5.6.12	0.007	0.077	21.03
5.6.11	0.000	0.053	20.84
5.6.10	0.000	0.050	21.05
5.6.9	0.007	0.043	20.81
5.6.8	0.000	0.037	20.24
5.6.7	0.007	0.053	20.31
5.6.6	0.000	0.070	20.40
5.6.5	0.000	0.040	20.45
5.6.4	0.000	0.063	20.45
5.6.3	0.010	0.040	20.45
5.6.2	0.003	0.040	20.40
5.6.1	0.003	0.053	20.36
5.6.0	0.003	0.037	20.14
5.5.38	0.000	0.050	17.65
5.5.37	0.003	0.043	17.57
5.5.36	0.003	0.070	17.52
5.5.35	0.000	0.077	17.68
5.5.34	0.003	0.040	17.99
5.5.33	0.003	0.037	18.00
5.5.32	0.007	0.033	17.91
5.5.31	0.003	0.040	17.97
5.5.30	0.007	0.033	17.97
5.5.29	0.003	0.040	17.90
5.5.28	0.007	0.063	18.25
5.5.27	0.003	0.073	17.98
5.5.26	0.000	0.043	17.95
5.5.25	0.000	0.070	17.98
5.5.24	0.000	0.037	17.67
5.5.23	0.000	0.043	17.38
5.5.22	0.003	0.050	17.37
5.5.21	0.000	0.040	17.46
5.5.20	0.000	0.040	17.46
5.5.19	0.000	0.040	17.52
5.5.18	0.003	0.063	17.55
5.5.16	0.000	0.060	17.48
5.5.15	0.000	0.037	17.51
5.5.14	0.000	0.040	17.55
5.5.13	0.003	0.040	17.63
5.5.12	0.000	0.087	17.38
5.5.11	0.003	0.043	17.47
5.5.10	0.017	0.063	17.25
5.5.9	0.000	0.070	17.41
5.5.8	0.000	0.037	17.51
5.5.7	0.000	0.080	17.21
5.5.6	0.000	0.037	17.22
5.5.5	0.003	0.037	17.52
5.5.4	0.010	0.050	17.23
5.5.3	0.000	0.040	17.37
5.5.2	0.007	0.030	17.43
5.5.1	0.003	0.073	17.21
5.5.0	0.003	0.050	17.39
5.4.45	0.000	0.040	19.59
5.4.44	0.007	0.063	19.58
5.4.43	0.000	0.047	19.26
5.4.42	0.003	0.040	19.25
5.4.41	0.000	0.040	19.32
5.4.40	0.000	0.053	19.26
5.4.39	0.000	0.040	18.95
5.4.38	0.007	0.073	19.11
5.4.37	0.000	0.040	18.98
5.4.36	0.000	0.090	19.13
5.4.35	0.003	0.043	19.13
5.4.34	0.003	0.037	18.94
5.4.32	0.000	0.077	18.96
5.4.31	0.000	0.067	19.17
5.4.30	0.003	0.033	18.94
5.4.29	0.003	0.040	18.97
5.4.28	0.000	0.077	19.03
5.4.27	0.003	0.077	19.26
5.4.26	0.003	0.077	19.11
5.4.25	0.007	0.067	18.96
5.4.24	0.000	0.063	19.25
5.4.23	0.003	0.073	19.08
5.4.22	0.000	0.040	19.17
5.4.21	0.007	0.067	18.96
5.4.20	0.003	0.057	19.12
5.4.19	0.007	0.033	19.10
5.4.18	0.003	0.080	19.10
5.4.17	0.010	0.070	18.97
5.4.16	0.000	0.053	18.93
5.4.15	0.007	0.073	19.23
5.4.14	0.000	0.040	16.38
5.4.13	0.000	0.073	16.38
5.4.12	0.000	0.037	16.59
5.4.11	0.000	0.057	16.66
5.4.10	0.010	0.067	16.50
5.4.9	0.003	0.067	16.54
5.4.8	0.003	0.067	16.55
5.4.7	0.003	0.043	16.41
5.4.6	0.000	0.067	16.25
5.4.5	0.000	0.047	16.29
5.4.4	0.000	0.053	16.38
5.4.3	0.000	0.043	16.53
5.4.2	0.000	0.050	16.47
5.4.1	0.003	0.040	16.38
5.4.0	0.007	0.047	16.07

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