Online PHP editor | perf for mUCAW

@ 2015-12-14T16:42:29Z

<?php

$dec = Decrypt("wpdPVWejqNRYqDTeUJ2Iw06/rnfHAoy5jtgTojiilD0=",  "ICS2015", "7");
echo "Dec: " . $dec . "\r\n";
$enc = Encrypt("boy10@naver.com", "ICS2015", "7");
echo "Enc: " . $enc . "\r\n";




function Decrypt($ciphertext, $password, $salt)
{
  $ciphertext = base64_decode($ciphertext);
  $key = PBKDF1($password, $salt, 100, 32);
  $iv = PBKDF1($password, $salt, 100, 16);


  // NB: Need 128 not 256 and CBC mode to be compatible
  $decpad = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $ciphertext, MCRYPT_MODE_CBC, $iv);
  
  $pad = ord($decpad[($len = strlen($decpad)) - 1]);
  $dec = substr($decpad, 0, strlen($decpad) - $pad);
  
  return $dec;
}



function Encrypt($ciphertext, $password, $salt)
{
   $ciphertext =  mb_convert_encoding($ciphertext,'UTF-16LE');
    $key = PBKDF2($password, $salt, 100, 32);
  $iv = PBKDF2($password, $salt, 100, 16);
    return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $ciphertext, MCRYPT_MODE_CBC, $iv));
}

function PBKDF2($pass, $salt, $count, $cb)
 {
      static $base;
      static $extra;
      static $extracount= 0;
      static $hashno;
      static $state = 0;

      if ($state == 0)
      {
        $hashno = 0;
        $state = 1;

        $key = $pass . $salt;
        $base = sha1($key, true);
        for($i = 2; $i < $count; $i++)
        {
          $base = sha1($base, true);
        }
      }

      $result = "";

      if ($extracount > 0)
      {
        $rlen = strlen($extra) - $extracount;
        if ($rlen >= $cb)
        {
          $result = substr($extra, $extracount, $cb);
          if ($rlen > $cb)
          {
            $extracount += $cb;
          }
          else
          {
            $extra = null;
            $extracount = 0;
          }
          return $result;
        }
        $result = substr($extra, $rlen, $rlen);
      }

      $current = "";
      $clen = 0;
      $remain = $cb - strlen($result);
      while ($remain > $clen)
      {
        if ($hashno == 0)
        {
          $current = sha1($base, true);
        }
        else if ($hashno < 1000)
        {
          $n = sprintf("%d", $hashno);
          $tmp = $n . $base;
          $current .= sha1($tmp, true);
        }
        $hashno++;
        $clen = strlen($current);     
      }

      // $current now holds at least as many bytes as we need
      $result .= substr($current, 0, $remain);

      // Save any left over bytes for any future requests
      if ($clen > $remain)
      {
        $extra = $current;
        $extracount = $remain;
      }

      return $result;  
    }  

function PBKDF1($pass, $salt, $count, $cb)
    {
      static $base;
      static $extra;
      static $extracount= 0;
      static $hashno;
      static $state = 0;

      if ($state == 0)
      {
        $hashno = 0;
        $state = 1;

        $key = $pass . $salt;
        $base = sha1($key, true);
        for($i = 2; $i < $count; $i++)
        {
          $base = sha1($base, true);
        }
      }

      $result = "";

      if ($extracount > 0)
      {
        $rlen = strlen($extra) - $extracount;
        if ($rlen >= $cb)
        {
          $result = substr($extra, $extracount, $cb);
          if ($rlen > $cb)
          {
            $extracount += $cb;
          }
          else
          {
            $extra = null;
            $extracount = 0;
          }
          return $result;
        }
        $result = substr($extra, $rlen, $rlen);
      }

      $current = "";
      $clen = 0;
      $remain = $cb - strlen($result);
      while ($remain > $clen)
      {
        if ($hashno == 0)
        {
          $current = sha1($base, true);
        }
        else if ($hashno < 1000)
        {
          $n = sprintf("%d", $hashno);
          $tmp = $n . $base;
          $current .= sha1($tmp, true);
        }
        $hashno++;
        $clen = strlen($current);     
      }

      // $current now holds at least as many bytes as we need
      $result .= substr($current, 0, $remain);

      // Save any left over bytes for any future requests
      if ($clen > $remain)
      {
        $extra = $current;
        $extracount = $remain;
      }

      return $result;  
    }  
?>

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	0.007	0.007	17.00
8.3.5	0.013	0.006	21.13
8.3.4	0.007	0.010	18.58
8.3.3	0.014	0.000	18.96
8.3.2	0.008	0.000	20.32
8.3.1	0.005	0.002	23.49
8.3.0	0.008	0.000	23.64
8.2.18	0.007	0.014	18.21
8.2.17	0.009	0.012	22.96
8.2.16	0.003	0.012	20.46
8.2.15	0.004	0.004	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.003	0.006	19.82
8.2.12	0.000	0.008	26.35
8.2.11	0.006	0.003	22.05
8.2.10	0.008	0.004	18.00
8.2.9	0.000	0.008	19.21
8.2.8	0.004	0.004	18.04
8.2.7	0.003	0.006	17.63
8.2.6	0.000	0.008	18.03
8.2.5	0.009	0.000	18.07
8.2.4	0.003	0.005	22.32
8.2.3	0.000	0.007	20.64
8.2.2	0.003	0.005	17.85
8.2.1	0.004	0.004	18.20
8.2.0	0.004	0.004	18.13
8.1.28	0.012	0.003	25.92
8.1.27	0.006	0.003	22.26
8.1.26	0.005	0.003	28.09
8.1.25	0.007	0.003	28.09
8.1.24	0.009	0.000	23.95
8.1.23	0.006	0.006	19.22
8.1.22	0.006	0.003	17.78
8.1.21	0.006	0.003	18.77
8.1.20	0.004	0.004	17.36
8.1.19	0.000	0.008	17.35
8.1.18	0.006	0.003	18.10
8.1.17	0.005	0.003	18.71
8.1.16	0.006	0.003	20.83
8.1.15	0.004	0.004	18.99
8.1.14	0.003	0.007	19.62
8.1.13	0.004	0.004	17.75
8.1.12	0.007	0.004	17.42
8.1.11	0.005	0.003	17.53
8.1.10	0.000	0.007	17.44
8.1.9	0.000	0.007	17.53
8.1.8	0.003	0.007	17.47
8.1.7	0.000	0.008	17.39
8.1.6	0.005	0.003	17.66
8.1.5	0.000	0.009	17.50
8.1.4	0.000	0.008	17.63
8.1.3	0.000	0.008	17.72
8.1.2	0.003	0.005	17.75
8.1.1	0.000	0.008	17.65
8.1.0	0.004	0.004	17.61
8.0.30	0.003	0.006	18.77
8.0.29	0.006	0.003	16.88
8.0.28	0.004	0.004	18.50
8.0.27	0.004	0.004	17.28
8.0.26	0.003	0.003	17.23
8.0.25	0.008	0.000	16.98
8.0.24	0.000	0.007	17.03
8.0.23	0.005	0.002	17.11
8.0.22	0.007	0.000	16.95
8.0.21	0.000	0.008	17.03
8.0.20	0.004	0.004	17.00
8.0.19	0.008	0.004	17.11
8.0.18	0.000	0.007	16.90
8.0.17	0.000	0.008	16.94
8.0.16	0.000	0.007	17.06
8.0.15	0.002	0.005	17.00
8.0.14	0.000	0.009	16.87
8.0.13	0.003	0.003	13.46
8.0.12	0.004	0.004	17.02
8.0.11	0.003	0.007	16.91
8.0.10	0.000	0.007	17.01
8.0.9	0.005	0.002	17.09
8.0.8	0.003	0.013	17.01
8.0.7	0.004	0.004	16.88
8.0.6	0.003	0.005	16.97
8.0.5	0.005	0.002	16.81
8.0.3	0.012	0.010	17.03
8.0.2	0.010	0.010	17.40
8.0.1	0.000	0.010	17.04
8.0.0	0.012	0.010	16.84
7.4.33	0.000	0.005	16.67
7.4.32	0.000	0.007	16.61
7.4.30	0.003	0.005	16.71
7.4.29	0.007	0.000	16.67
7.4.28	0.005	0.005	16.63
7.4.27	0.003	0.003	16.67
7.4.26	0.003	0.006	16.60
7.4.25	0.004	0.004	16.66
7.4.24	0.002	0.005	16.57
7.4.23	0.000	0.007	16.67
7.4.22	0.022	0.006	16.69
7.4.21	0.004	0.011	16.61
7.4.20	0.003	0.003	16.45
7.4.16	0.009	0.006	16.55
7.4.15	0.009	0.010	17.40
7.4.14	0.016	0.003	17.86
7.4.13	0.010	0.014	16.54
7.4.12	0.005	0.013	16.62
7.4.11	0.007	0.010	16.52
7.4.10	0.014	0.004	16.54
7.4.9	0.008	0.011	16.54
7.4.8	0.011	0.006	19.39
7.4.7	0.014	0.003	16.63
7.4.6	0.012	0.003	16.45
7.4.5	0.000	0.012	16.38
7.4.4	0.010	0.007	16.48
7.4.3	0.000	0.016	16.58
7.4.0	0.004	0.011	14.90
7.3.33	0.003	0.003	13.34
7.3.32	0.000	0.005	13.34
7.3.31	0.007	0.000	16.47
7.3.30	0.006	0.000	16.35
7.3.29	0.000	0.007	16.48
7.3.28	0.006	0.012	16.47
7.3.27	0.007	0.016	17.40
7.3.26	0.013	0.003	16.46
7.3.25	0.012	0.005	16.50
7.3.24	0.012	0.008	16.48
7.3.23	0.006	0.013	16.46
7.3.21	0.011	0.007	16.73
7.3.20	0.009	0.009	19.39
7.3.19	0.009	0.008	16.62
7.3.18	0.000	0.016	16.57
7.3.17	0.010	0.006	16.52
7.3.16	0.010	0.016	16.51
7.2.33	0.007	0.011	16.65
7.2.32	0.007	0.010	16.80
7.2.31	0.010	0.006	16.82
7.2.30	0.006	0.016	16.51
7.2.29	0.013	0.010	16.70
7.2.11	0.015	0.008	16.49
7.2.6	0.010	0.003	16.70
7.2.0	0.008	0.003	19.62
7.1.20	0.010	0.003	15.90
7.1.10	0.003	0.009	18.20
7.1.7	0.006	0.003	17.22
7.1.6	0.011	0.011	19.06
7.1.5	0.015	0.004	34.86
7.1.0	0.000	0.093	22.48
7.0.20	0.014	0.000	15.14
7.0.6	0.000	0.033	21.53
7.0.5	0.013	0.070	18.11
7.0.4	0.007	0.073	20.09
7.0.3	0.023	0.057	20.45
7.0.2	0.037	0.073	20.07
7.0.1	0.010	0.037	20.08
7.0.0	0.007	0.040	20.15
5.6.28	0.000	0.037	21.14
5.6.21	0.010	0.067	20.54
5.6.20	0.007	0.043	18.25
5.6.19	0.013	0.047	20.46
5.6.18	0.030	0.073	20.48
5.6.17	0.033	0.043	20.45
5.6.16	0.007	0.040	20.53
5.6.15	0.003	0.050	18.20
5.6.14	0.003	0.047	18.26
5.6.13	0.007	0.040	18.17
5.6.12	0.013	0.080	21.20
5.6.11	0.010	0.080	21.06
5.6.10	0.010	0.067	21.07
5.6.9	0.010	0.083	21.05
5.6.8	0.013	0.047	20.49
5.5.35	0.010	0.080	20.35
5.5.34	0.003	0.087	17.98
5.5.33	0.017	0.077	20.31
5.5.32	0.063	0.050	20.35
5.5.31	0.023	0.080	20.30
5.5.30	0.003	0.060	18.02
5.5.29	0.013	0.073	17.99
5.5.28	0.013	0.077	20.71
5.5.27	0.010	0.080	20.91
5.5.26	0.003	0.040	20.80
5.5.25	0.013	0.080	20.78
5.5.24	0.027	0.070	20.44

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