Online PHP editor | perf for EvtKB

@ 2015-12-14T16:46:09Z

<?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');
    $key = PBKDF1($password, $salt, 100, 32);
  $iv = PBKDF1($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)
8.3.7	0.008	0.008	18.43
8.3.6	0.007	0.007	16.88
8.3.5	0.009	0.011	21.09
8.3.4	0.011	0.007	18.90
8.3.3	0.000	0.015	18.97
8.3.2	0.000	0.008	20.34
8.3.1	0.004	0.004	23.61
8.3.0	0.000	0.008	23.66
8.2.19	0.007	0.007	16.58
8.2.18	0.016	0.006	16.63
8.2.17	0.010	0.007	18.92
8.2.16	0.014	0.007	22.96
8.2.15	0.008	0.000	24.18
8.2.14	0.003	0.005	24.66
8.2.13	0.006	0.003	19.65
8.2.12	0.007	0.000	26.35
8.2.11	0.012	0.009	21.96
8.2.10	0.011	0.000	18.04
8.2.9	0.005	0.003	19.32
8.2.8	0.003	0.005	18.04
8.2.7	0.004	0.004	17.75
8.2.6	0.004	0.004	17.93
8.2.5	0.004	0.004	18.07
8.2.4	0.003	0.006	22.28
8.2.3	0.000	0.007	20.69
8.2.2	0.006	0.003	17.88
8.2.1	0.005	0.003	18.14
8.2.0	0.000	0.008	18.06
8.1.28	0.004	0.011	25.92
8.1.27	0.003	0.006	22.17
8.1.26	0.008	0.000	28.09
8.1.25	0.003	0.012	28.09
8.1.24	0.006	0.003	23.83
8.1.23	0.012	0.000	18.97
8.1.22	0.003	0.005	17.77
8.1.21	0.003	0.006	18.77
8.1.20	0.006	0.003	17.48
8.1.19	0.003	0.006	17.35
8.1.18	0.008	0.000	18.10
8.1.17	0.003	0.005	18.70
8.1.16	0.004	0.004	20.82
8.1.15	0.004	0.004	18.87
8.1.14	0.004	0.006	19.64
8.1.13	0.000	0.007	17.75
8.1.12	0.003	0.006	17.39
8.1.11	0.000	0.007	17.52
8.1.10	0.000	0.010	17.50
8.1.9	0.004	0.004	17.50
8.1.8	0.007	0.003	17.37
8.1.7	0.000	0.007	17.54
8.1.6	0.003	0.006	17.64
8.1.5	0.000	0.008	17.45
8.1.4	0.008	0.000	17.41
8.1.3	0.008	0.000	17.69
8.1.2	0.000	0.008	17.68
8.1.1	0.003	0.005	17.61
8.1.0	0.008	0.000	17.58
8.0.30	0.007	0.000	18.77
8.0.29	0.008	0.000	16.73
8.0.28	0.004	0.004	18.50
8.0.27	0.004	0.004	17.31
8.0.26	0.003	0.003	17.19
8.0.25	0.004	0.004	17.09
8.0.24	0.000	0.007	16.99
8.0.23	0.007	0.000	17.07
8.0.22	0.000	0.007	16.95
8.0.21	0.000	0.008	16.89
8.0.20	0.000	0.007	17.08
8.0.19	0.011	0.000	17.07
8.0.18	0.004	0.004	17.01
8.0.17	0.004	0.004	17.05
8.0.16	0.005	0.002	17.11
8.0.15	0.005	0.002	17.00
8.0.14	0.000	0.008	16.88
8.0.13	0.005	0.002	13.43
8.0.12	0.003	0.005	16.94
8.0.11	0.003	0.007	16.97
8.0.10	0.005	0.002	16.96
8.0.9	0.005	0.002	16.88
8.0.8	0.006	0.010	17.01
8.0.7	0.003	0.005	16.89
8.0.6	0.000	0.007	16.91
8.0.5	0.000	0.007	16.83
8.0.3	0.013	0.007	17.28
8.0.2	0.012	0.008	17.40
8.0.1	0.006	0.003	16.98
8.0.0	0.011	0.008	16.86
7.4.33	0.000	0.005	16.79
7.4.32	0.003	0.003	16.71
7.4.30	0.000	0.006	16.49
7.4.29	0.003	0.003	16.60
7.4.28	0.003	0.007	16.59
7.4.27	0.000	0.007	16.62
7.4.26	0.000	0.007	16.57
7.4.25	0.003	0.005	16.62
7.4.24	0.007	0.000	16.66
7.4.23	0.003	0.003	16.73
7.4.22	0.014	0.007	16.70
7.4.21	0.013	0.005	16.64
7.4.20	0.007	0.000	16.55
7.4.16	0.007	0.010	16.83
7.4.15	0.011	0.007	17.40
7.4.14	0.010	0.011	17.86
7.4.13	0.013	0.010	16.65
7.4.12	0.009	0.010	16.66
7.4.11	0.015	0.003	16.68
7.4.10	0.010	0.007	16.67
7.4.9	0.010	0.013	16.57
7.4.8	0.014	0.003	19.39
7.4.7	0.009	0.009	16.63
7.4.6	0.007	0.010	16.59
7.4.5	0.006	0.010	16.70
7.4.4	0.000	0.016	16.73
7.4.3	0.009	0.006	16.57
7.4.0	0.000	0.014	15.04
7.3.33	0.006	0.000	13.43
7.3.32	0.005	0.000	13.41
7.3.31	0.008	0.000	16.38
7.3.30	0.003	0.003	16.36
7.3.29	0.000	0.007	16.44
7.3.28	0.010	0.009	16.50
7.3.27	0.009	0.009	17.40
7.3.26	0.000	0.017	16.56
7.3.25	0.007	0.010	16.59
7.3.24	0.009	0.008	16.52
7.3.23	0.010	0.010	16.48
7.3.21	0.007	0.010	16.48
7.3.20	0.003	0.014	19.39
7.3.19	0.007	0.010	16.72
7.3.18	0.006	0.010	16.64
7.3.17	0.003	0.013	16.72
7.3.16	0.016	0.006	16.54
7.2.33	0.007	0.011	16.66
7.2.32	0.011	0.006	16.78
7.2.31	0.009	0.009	16.77
7.2.30	0.014	0.005	16.75
7.2.29	0.017	0.000	16.82
7.2.11	0.009	0.009	16.45
7.2.6	0.007	0.010	16.80
7.2.0	0.000	0.013	19.46
7.1.20	0.006	0.009	15.80
7.1.10	0.004	0.007	17.97
7.1.7	0.004	0.007	17.09
7.1.6	0.009	0.015	19.06
7.1.5	0.003	0.010	17.05
7.1.0	0.000	0.080	22.37
7.0.20	0.003	0.010	14.88
7.0.6	0.003	0.037	21.53
7.0.5	0.013	0.073	18.03
7.0.4	0.010	0.083	20.11
7.0.3	0.030	0.050	20.17
7.0.2	0.033	0.047	20.42
7.0.1	0.007	0.040	20.35
7.0.0	0.000	0.047	20.30
5.6.28	0.003	0.047	21.15
5.6.21	0.013	0.083	20.74
5.6.20	0.013	0.077	18.19
5.6.19	0.013	0.080	20.66
5.6.18	0.027	0.050	20.69
5.6.17	0.030	0.077	20.47
5.6.16	0.007	0.043	20.47
5.6.15	0.010	0.073	18.23
5.6.14	0.003	0.040	18.15
5.6.13	0.010	0.037	18.36
5.6.12	0.013	0.053	21.20
5.6.11	0.003	0.083	21.16
5.6.10	0.003	0.083	21.24
5.6.9	0.017	0.057	21.04
5.6.8	0.013	0.067	20.35
5.5.35	0.003	0.047	20.36
5.5.34	0.017	0.073	18.02
5.5.33	0.013	0.073	20.57
5.5.32	0.067	0.067	20.35
5.5.31	0.020	0.040	20.38
5.5.30	0.000	0.060	17.94
5.5.29	0.010	0.077	17.99
5.5.28	0.010	0.083	20.91
5.5.27	0.003	0.090	20.96
5.5.26	0.000	0.043	20.70
5.5.25	0.000	0.093	20.72
5.5.24	0.013	0.077	20.30

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