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Jul 25, 2016 am 09:08 AM
  1. /**
  2. * Copyright (c) 2011 - 01 XatuDream
  3. * XatuDream All Rights Reserved.
  4. * Support:185390516.qzone.qq.com
  5. * QQ:185390516
  6. * Author:Lau Version:1.01
  7. * Date:2010-08-12 09:28:32
  8. */
  9. ! defined ( 'WORKSPACE' ) && exit ( "Access Denied !" );
  10. class MD5Crypt {
  11. /**
  12. * Enter description here ...
  13. * @param unknown_type $str
  14. * @return string
  15. */
  16. public final static function mdsha($str) {
  17. $code = substr ( md5 ( $str ), 10 );
  18. $code .= substr ( sha1 ( $str ), 0, 28 );
  19. $code .= substr ( md5 ( $str ), 0, 22 );
  20. $code .= substr ( sha1 ( $str ), 16 ) . md5 ( $str );
  21. return self::chkToken () ? $code : null;
  22. }
  23. /**
  24. * Enter description here ...
  25. * @param unknown_type $param
  26. */
  27. private final static function chkToken() {
  28. return true;
  29. }
  30. /**
  31. * Enter description here ...
  32. * @param unknown_type $txt
  33. * @param unknown_type $encrypt_key
  34. * @return Ambigous
  35. */
  36. private final static function keyED($txt, $encrypt_key) {
  37. $encrypt_key = md5 ( $encrypt_key );
  38. $ctr = 0;
  39. $tmp = "";
  40. for($i = 0; $i < strlen ( $txt ); $i ) {
  41. if ($ctr == strlen ( $encrypt_key ))
  42. $ctr = 0;
  43. $tmp .= substr ( $txt, $i, 1 ) ^ substr ( $encrypt_key, $ctr, 1 );
  44. $ctr ;
  45. }
  46. return $tmp;
  47. }
  49. /**
  50. * Enter description here ...
  51. * @param unknown_type $txt
  52. * @param unknown_type $key
  53. * @return string
  54. */
  55. public final static function Encrypt($txt, $key) {
  56. srand ( ( double ) microtime () * 1000000 );
  57. $encrypt_key = md5 ( rand ( 0, 32000 ) );
  58. $ctr = 0;
  59. $tmp = "";
  60. for($i = 0; $i < strlen ( $txt ); $i ) {
  61. if ($ctr == strlen ( $encrypt_key ))
  62. $ctr = 0;
  63. $tmp .= substr ( $encrypt_key, $ctr, 1 ) . (substr ( $txt, $i, 1 ) ^ substr ( $encrypt_key, $ctr, 1 ));
  64. $ctr ;
  65. }
  66. $_code = md5 ( $encrypt_key ) . base64_encode ( self::keyED ( $tmp, $key ) ) . md5 ( $encrypt_key . $key );
  67. return self::chkToken () ? $_code : null;
  68. }
  70. /**
  71. * Enter description here ...
  72. * @param unknown_type $txt
  73. * @param unknown_type $key
  74. * @return Ambigous
  75. */
  76. public final static function Decrypt($txt, $key) {
  77. $txt = self::keyED ( base64_decode ( substr ( $txt, 32, - 32 ) ), $key );
  78. $tmp = "";
  79. for($i = 0; $i < strlen ( $txt ); $i ) {
  80. $md5 = substr ( $txt, $i, 1 );
  81. $i ;
  82. $tmp .= (substr ( $txt, $i, 1 ) ^ $md5);
  83. }
  84. return self::chkToken () ? $tmp : null;
  85. }
  87. /**
  88. * Enter description here ...
  89. * @var unknown_type
  90. */
  91. private static $_key = 'lau';
  92. }
  93. ?>
復(fù)制代碼
  1. 使用方法：
  3. /**
  4. * Copyright (c) 2011 XatuDream
  5. * XatuDream All Rights Reserved.
  6. * Support:185390516.qzone.qq.com
  7. * QQ:185390516
  8. * Author:LoveCrystal Version:1.01
  9. * Date:2011-9-2 04:00:37
  10. */
  11. define ( 'WORKSPACE', '.' . DIRECTORY_SEPARATOR );
  12. header ( "Content-Type: text/html; charset=utf-8" );
  14. include_once 'Core/Library/MD5Crypt.class.php';
  16. $a = MD5Crypt::Encrypt ( "A", 100 );
  17. echo "EnCode:" . $a, "
    ";
  18. echo "DeCode:" . MD5Crypt::Decrypt ( $a, 100 );
  20. ?>
復(fù)制代碼


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