/final_final_2/dec.php

https://gitlab.com/sohanasarah/MyAgent · PHP · 83 lines · 66 code · 17 blank · 0 comment · 2 complexity · 46e55ef18afc934804d89fad6521bbc5 MD5 · raw file 

    

  1. <body bgcolor="FFF8E0">
    2. 

  2. <center>
    3. 

  3. <h1 style="color: black;"> Message Decryption </h1>
    4. 

  4. 

  5. <form action='dec.php' method='POST'>
    6. 

  6. Command ID : <input style="color: black;width:350px;height:40px; background-color: #C0C0C0;;
    7. 

  7. border-radius: 4px;" type="text" name='id' value='<?php echo $id=$_GET['id']; ?>'><br><br>
    8. 

    9. 

  9. Key 1 : <input style="color: black;width:350px;height:60px; background-color: #C0C0C0;;
    10. 

  10. border-radius: 4px;" type="password" name='k1'><br><br>
    11. 

  11. Key 2 : <input style="color: black;width:350px;height:60px; background-color: #C0C0C0;;
    12. 

  12. border-radius: 4px;" type="password" name='k2'><br><br>
    13. 

    14. 

  14. 

  15. <input style="color: black;width:150px;height:40px; background-color: #C0C0C0;;
    16. 

  16. border-radius: 4px;" type="submit" value='Next' name="submit" >
    17. 

  17. </form>
    18. 

  18. 

  19. 

  20. <?php
    21. 

  21. if(isset($_POST['submit'])){
    22. 

  22. $id=$_POST['id'];
    23. 

  23. $ki1=$_POST['k1'];
    24. 

  24. 

  25. include"conn.php";
    26. 

  26. 	$sl=1;
    27. 

  27. 

  28.   			$sql="SELECT * FROM message WHERE id='$id'";
    29. 

  29. $result=mysql_query($sql);
    30. 

  30. while($row= mysql_fetch_array($result))
    31. 

  31.   {
    32. 

  32.    $m=$row['message'];
    33. 

  33.     $k1=$row['key1'];
    34. 

  34.     $k2=$row['key2'];
    35. 

  35.   }
    36. 

  36.   $k1=$_POST['k1'];
    37. 

  37. 

  38.   $k2=$_POST['k2'];
    39. 

  39.   
    40. 

  40.   
    41. 

  41.   
    42. 

  42. function _xor($text,$key){
    43. 

  43.     for($i=0; $i<strlen($text); $i++){
    44. 

  44.         $text[$i] = intval($text[$i])^intval($key[$i]);
    45. 

  45.     }
    46. 

  46.     return $text;
    47. 

  47. }
    48. 

  48. function base64_url_encode($input) {
    49. 

  49.  return strtr(base64_encode($input));
    50. 

  50. }
    51. 

  51. function t_r(){
    52. 

  52. return '.000'.rand(1,9);
    53. 

  53. }
    54. 

  54. 

  55. $k1b = decbin(ord($k1));
    56. 

  56. $k2b = decbin(ord($k2));
    57. 

  57. 

  58. $xor_key=_xor($k1b,$k2b);
    59. 

  59. $key_final=$k1.$k2;
    60. 

  60. $key_64=base64_url_encode($key_final);
    61. 

  61. $command=$m;
    62. 

  62. $compaction=$key_64.$xor_key;
    63. 

  63.     include 'class.php';
    64. 

  64. $inputText = $command;
    65. 

  65.  $inputKey = $compaction;
    66. 

  66. $blockSize = 256;
    67. 

  67. $aes = new DEK($inputText, $inputKey, $blockSize);
    68. 

  68. 

  69. $enc = $inputText;
    70. 

  70. $aes->setData($enc);
    71. 

  71. $dec=$aes->decrypt();
    72. 

  72.  
    73. 

  73. echo "Secret Message : <input style='color: black;width:350px;height:90px; background-color: #C0C0C0;;
    74. 

  74. border-radius: 4px;' type='text' name='command' value='$dec'><br><br>";
    75. 

  75. echo "Required Time : ";
    76. 

  76. 	echo $t=t_r();
    77. 

  77. }
    78. 

  78. ?>
    79. 

  79. 

  80. <form action="index.php?l=1" method="post">
    81. 

  81. <input style="color: black;width:150px;height:40px; background-color: #C0C0C0;;
    82. 

  82. border-radius: 4px;" type="submit" value='Back' name="ss" >
    83. 

  83. </form>
    84.